Ciencia

Artículos científicos

AñoAutoresTítuloRevistaResumen
2020Nahuelhual L., Saavedra G., Mellado M., Vergara X., Vallejos T.A social-ecological trap perspective to explain the emergence and persistence of illegal fishing in small-scale fisheriesMaritime StudiesWe use the social-ecological trap (SET) concept and path-dependence analysis to explain the emergence and persistence of illegal fishing, taking the Chilean king crab fishery as a case study... Ver link
2020Molinet C., Olguín A., Gebauer P., Díaz P., Díaz M., Matamala T., Mora P., Paschke K.Upswing and expansion of the southern king crab (Lithodes santolla) fishery in Northwest Patagonia: Drivers, trends and opportunities for managementRegional Studies in Marine ScienceThe southern king crab (SKC) (Lithodes santolla) represents an important fishery in South America, which in Chile has traditionally been developed south of 47°S. Since 2010, the SKC fishery has increased its landing range in the Chilean inner sea from 41°S to 47°S and expanded its offshore fishing areas. Ver PDF
2020Fernández P., González-Wevar C., Segovia N., Rosenfeld S., Hüne M., Fainburg L., Nuñez J., Haye P., Poulin E.Quaternary ice sheets and sea level regression drove divergence in a marine gastropod along Eastern and Western coasts of South AmericaScientific ReportsThe southern coastline of South America is a remarkable area to evaluate how Quaternary glacial processes impacted the demography of the near-shore marine biota. Here we present new phylogeographic analyses in the pulmonate Siphonaria lessonii across its distribution, from northern Chile in the Pacific to Uruguay in the Atlantic. Ver PDF
2020Auera A., Below J., Nahuelhual L., Mastrangelo M., González A., Gluch M., Vallejos M., Staiano L., Laterra P., Paruelo J.The role of social capital and collective actions in natural capital conservation and managementEnvironmental Science & PolicyThe relationships among social capital (SC) and collective actions (CA) for nature conservation and management were analyzed across five case studies characterised by specific land-use dynamics in the South American continent... Ver link
2020Logares R., Deutschmann I., Junger P., Giner C., Krabberød A., Schmidt T., Rubinat-Ripoll L., Mestre M., Salazar G., Ruiz-González C., Sebastián M., de Vargas C., Acinas S., Duarte C., Gasol J., Massana RDisentangling the mechanisms shaping the surface ocean microbiotaMicrobiomeThe ocean microbiota modulates global biogeochemical cycles and changes in its configuration may have large-scale consequences. Yet, the underlying ecological mechanisms structuring it are unclear... Ver PDF
2020Martínez D., Sousa C., Oyarzún R., Pontigo J., Canario A., Power D., Vargas-Chacoff L., Guerreiro P.LPS Modulates the Expression of Iron-Related Immune Genes in Two Antarctic NotothenoidsFrontiers in PhysiologyThe non-specific immunity can induce iron deprivation as a defense mechanism against potential bacterial pathogens, but little information is available as to its role in Antarctic fish... Ver PDF
2020Detree C., Navarro, J., Ortiz A.Combined effects of warming and freshening on the physiological energetics of the edible whelk Trophon geversianusMarine Environmental ResearchThe interacting effects of climate change pressures and human use of natural resources are increasingly affecting marine biodiversity. Leer PDF
2020Suárez L., Hansen M., Urtubia U., Lenz M., Valdivia N., Thiel M.Season-dependent effects of ocean warming on the physiological performance of a native and a non-native sea anemoneJournal of Experimental Marine Biology and EcologyThe effects of ocean warming on the physiological performance of marine organisms have been widely studied. However, few studies have considered the relevance of seasonal acclimation to elevated temperatures and whether native and non-native species have similar tolerances to warming. Leer PDF
2020Ríos F., Kilian R., Lange C., Baeza-Urrea O., Arz H., Zindorf M., De Pol-Holz R., Lamy F.Environmental and coastline changes controlling Holocene carbon accumulation rates in fjords of the western Strait of Magellan regionContinental Shelf ResearchOrganic-rich sediments of the southern most Chilean Pacific coast and its fjord system constitute an important component of the global marine carbon budget. Sediment records from Trampa and Caribe bays and Churruca fjord in the western Magellan fjord system have been analyzed with the goal of understanding the factors controlling carbon accumulation and its regional fluctuation throughout the Holocene... Ver link
2020Pretterebner K., Pardo L.All or nothing: Switch to high current reproductive investment under risk of starvation in male kelp crabEcology and EvolutionOne of the key features in reproduction of polygynous species is seminal recovery after mating. However, it is poorly known how environmental factors affect the recuperation period of seminal material. This study aims to test plasticity in recovery of seminal reserves in response to distinct environmental conditions of the kelp crab Taliepus dentatus... Ver link
2020Fraser C., Velásquez M., Nelson W., Macaya E., Hay C.The Biogeographic Importance of Buoyancy in Macroalgae: A Case Study of the Southern Bull‐Kelp Genus Durvillaea (Phaeophyceae), Including Descriptions of Two New SpeciesJournal of PhicologyLong‐distance dispersal plays a key role in evolution, facilitating allopatric divergence, range expansions, and species movement in response to environmental change. Even species that seem poorly suited to dispersal can sometimes travel long distances, for example via hitchhiking with other, more intrinsically dispersive species... Ver link
2020Détrée C., Navarro J., Font A., González M.Species vulnerability under climate change: Study of two sea urchins at their distribution marginScience of The Total EnvironmentIn order to develop powerful predictions on the impact of climate change on marine organisms, it is critical to understand how abiotic drivers such as temperature can directly and indirectly affect marine organisms... Ver link
2020Cárdenas L., Leclerc J., Bruning P., Garrido I., Détrée C., Figueroa A., Astorga M., Navarro J., Johnson L., Carlton J., Pardo L.First mussel settlement observed in Antarctica reveals the potential for future invasionsScientific ReportsGlobal biodiversity is both declining and being redistributed in response to multiple drivers characterizing the Anthropocene, including synergies between biological invasions and climate change... Ver PDF
2020Valdivia N., Garrido I., Bruning P., Piñones A., Pardo L.Biodiversity of an Antarctic rocky subtidal community and its relationship with glacier meltdown processesMarine Environmental ResearchGlacier meltdown is a major environmental response to climate change in the West Antarctic Peninsula. Yet, the consequences of this process for local biodiversity are still not well understood... Ver link
2020Huovinen P., Gómez I., Ramírez J., Palacios M.Satellite-derived mapping of kelp distribution and water optics in the glacier impacted Yendegaia Fjord (Beagle Channel, Southern Chilean Patagonia)Science of The Total EnvironmentGiant kelp Macrocystis pyrifera is a brown alga with extensive global distribution, however, recent evidence suggests that its dynamics presents high degree of regional variability.
2020Palacios M., Macaya E., Gómez I., Huovinen P.A High-Resolution Global Map of Giant Kelp (Macrocystis pyrifera) Forests and Intertidal Green Algae (Ulvophyceae) with Sentinel-2 Imagery Remote SensingGiant kelp (Macrocystis pyrifera) is the most widely distributed kelp species on the planet, constituting one of the richest and most productive ecosystems on Earth, but detailed information on its distribution is entirely missing in some marine ecoregions, especially in the high latitudes of the Southern Hemisphere. Leer PDF
2020Tello F., González M., Valdivia N., Torres F., Lara A., García-López A.Diversity loss and changes in saproxylic beetle assemblages following a high-severity fire in Araucaria–Nothofagus forestsJournal of Insect ConservationForest fires have increased in frequency worldwide due to global warming, drought, and land-use change. These fire-regime changes have altered the dynamics of deadwood accumulation in forests, which can affect biological communities dependent on this resource... Ver link
2020Maturana C., Segovia N., González‐Wevar C., Díaz A., Rosenfeld S., Poulin E., Jackson J., Convey P.Evidence of strong small‐scale population structure in the Antarctic freshwater copepod Boeckella poppei in lakes on Signy Island, South Orkney IslandsLimnology and OceanographyEnvironmental conditions were particularly severe during the Last Glacial Maximum, altering the distribution of the Southern Hemisphere biota, particularly at higher latitudes. Ver link
2020Grenier C., Román R., Duarte C., Navarro J., Rodriguez-Navarro A., Ramajo L.The combined effects of salinity and pH on shell biomineralization of the edible mussel Mytilus chilensisEnviromental PollutionCoastal ecosystems influenced by river discharges are subjected to important environmental changes. Understanding how marine biota cope with its environment is relevant in predicting the responses to future conditions imposed by climate change... Ver link
2020Soto D., Gómez I., Huovinen P.Microbial composition and photosynthesis in Antarctic snow algae communities: Integrating metabarcoding and pulse amplitude modulation fluorometryAlgal ResearchAntarctic snow microbial communities are complex biomes formed by different groups of microorganisms thatinclude algae, bacteria, fungi, and archaea. Leer PDF
2019Laterra P., Nahuelhual L., Gluch M., Sirimarco X., Bravo G., Monjeau A.How are jobs and ecosystem services linked at the local scale?Ecosystem ServicesWith the exception of subsistence economies, employment benefits along a value chain may represent a relevant, but also a generally neglected part of the wealth derived from nature. Ver PDF
2019Valdivia N., Pardo L., Macaya E., Huovinen P., Gómez I. Different ecological mechanisms lead to similar grazer controls on the functioning of periphyton Antarctic and sub-Antarctic communitiesProgress in Oceanographyunclear. Dispersal, drift, speciation, and abiotic environmental filtering have been considered to explain these differences; biotic interactions, however, have received less attention... Ver PDF
2019González W., Hüne M., Rosenfeld S., Nakano Tomoyuki N., Saucéde T., Spencer H., Poulin E.Systematic revision of Nacella (Patellogastropoda:
Nacellidae) based on a complete phylogeny of the genus, with the description of a new species from the southern tip of South America
Zoological Journal of the Linnean Society,True limpets of the genus Nacella (Patellogastropoda: Nacellidae) include at least 11 nominal species distributed in different provinces of the Southern Ocean. Ver PDF
2019Torres M., Acevedo J., Mora C., Iglesias E., Bravo E., Martínez F.Sighting of southern right whale dolphin (Lissodelphis peronii) in the Magellan Strait, ChilePolar BiologyThe southern right whale dolphin (Lissodelphis peronii) is a seldom seen cetacean of southern latitudes. In the eastern South Pacific, there are less than 73 confirmed records of live and stranded animals. Ver PDF
2019Menschel E., González H. Carbon and Calcium Carbonate Export Driven by Appendicularian Faecal Pellets in the Humboldt Current System off ChileScientific ReportsThe role of appendicularian faecal pellet (FPa) size fractions on coccolithophore-derived particulate organic carbon (POC) and calcium carbonate (CaCO3) export to the deep sea was assessed from sediment traps within a period of ten years (1995–2004) off Coquimbo (CQ, 30°S) and five years (2005–2009) off Concepción (CC, 36°S) in the Humboldt Current System (HCS) off Chile... Ver link
2019Ortiz A., Navarro J., Pizarro G., Villanueva P., Segura C. Accumulation and biotransformation dynamics of the neurotoxic complex,
saxitoxin, in different life stages of Ostrea chilensis
Marine Environmental ResearchThe neurotoxic complex saxitoxin, is a group of marine toxins that historically has significantly impacted human health and the ability to utilize marine resources. Ver PDF
2019Weyland F., Mastrangelo M., Auer A., Barral M., Nahuelhual L., Larrazábal A., Parera A., Berrouet L., López Connie., Villegas C. Ecosystem services approach in Latin America: From theoretical promises to real applicationsEcosystem ServicesThe Ecosystem Services concept has become a tool widely used to understand the links between the functioning of ecosystems and human well-being Ver PDF
2019González H., Nimptsch J., Giesecke R., Silva N.Organic matter distribution, composition and its possible fate in the Chilean North-Patagonian estuarine systemScience of the Total EnvironmentThe distribution, composition, and transport of both dissolved and particulate organic carbon (DOC and POC) were studied across a terrestrial - marine transition system in the Chilean North-Patagonia (41°S). Ver PDF
2019Pinochet A., Garcés J., Lara C., Olguín F.Seasonal Variability of Upwelling o Central-Southern ChileRemote SensingThe central and northern Chilean coasts are part of the Humboldt Current System, which sustains one of the largest fisheries in the world due to upwelling. Ver PDF
2019Rebolledo L., Bertrand S., Lange C., Tapia F., Quiroga E., Troch M., Cárdenas P., Pantoja S.Compositional and biogeochemical variations of sediments across the terrestrial-marine continuum of the Baker-Martínez fjord system (Chile, 48°S)Progress in OceanographyThe Baker-Martínez fjord system (Chile, 48⁰S) is a transitional environment between the terrestrial ecosystems of Patagonia and the SE Pacific Ocean. Ver PDF
2019Folchi M., Blanco-Wells G. Meier S.Definiciones tecno-políticas en la configuración de la matriz energética chilena durante el siglo XXHistoriaThe article examines the historical configuration of the Chilean energy matrix throughout the twentieth century and understands it as the result of the relative expansion and decline of three interdependent socio-technical regimes: coal, petroleum and electricity. Ver PDF
2019Cárdenas P., Lange C., Vernet M., Esper O., Srain B., Vorrath M., Ehrhardt S., Müller J., Kuhn G., Arz H., Lembke-Jene L., Lamy F.Biogeochemical proxies and diatoms in surface sediments across the Drake Passage reflect oceanic domains and frontal systems in the regionProgress in OceanographyThe Antarctic Circumpolar Current is the world’s largest current system connecting all major ocean basins of the global ocean. Its flow, driven by strong westerly winds, is constricted to its narrowest extent in the Drake Passage, located between South America and the Antarctic Peninsula... Ver link
2019Piñones A., Hofmann E. Costa D., Goetz K., Burns J., Roquet F., Dinniman M., Klinck J.Hydrographic variability along the inner and mid-shelf region of the western Ross Sea obtained using instrumented sealsProgress in OceanographyTemperature and salinity measurements obtained from sensors deployed on Weddell seals (Leptonychotes weddellii) between late austral summer, Ver PDF
2019Küppe F., Peters A., Kytinou E., Asensi A., Vieira C., Macaya E., De Clerck O.Dictyota falklandica sp. nov. (Dictyotales, Phaeophyceae) from the Falkland Islands and southernmost South AmericaPhycologiaSurveys of the seaweed flora of the Falkland Islands and of Tierra del Fuego revealed the presence of a new species of brown alga. Dictyota falklandica sp. nov. inhabits the shallow rocky infralittoral in sheltered localities and the lower intertidal in more exposed sites... Ver PDF
2019Küpper F., Peters A., Kytinou E., Asensi A., Vieira C., Macaya E., De Clerck O.Dictyota falklandica sp. nov. (Dictyotales, Phaeophyceae) from the Falkland Islands and southernmost South AmericaPhicologyaSurveys of the seaweed flora of the Falkland Islands and of Tierra del Fuego revealed the presence of a new species of brown alga. Leer PDF
2019 Navarro⁠ J.⁠, Paschkeb K.⁠, Ortiz⁠ A.⁠, Vargas-Chacoff⁠ L.⁠, Pardo L.The Antarctic fish Harpagifer antarcticus under current temperatures and salinities and future scenarios of climate changeProgress in OceanographySmolting in Atlantic salmon Salmo salar is a critical life-history stage that is preparatory for... Ver PDF
2019Sanchez N., Bizsel N., Iriarte J., Olsen L., Ardelan M.Iron cycling in a mesocosm experiment in a north Patagonian fjord: Potential effect of ammonium addition by salmon aquacultureEstuarine, Coastal and Shelf ScienceSalmon aquaculture in Chile has been a rapidly growing industry, generating increasing inputs of organic matter
and inorganic nutrients into the ecosystem. We studied the potential impacts of ammonium input by this industry
on the cycling of iron (Fe) in a Chilean fjord. Ver PDF
2019Aguayo R., León J., Vargas J., Montecinos A., Garreud R., Urbina M., Soto D., Iriarte J.The glass half-empty: climate change drives lower freshwater input in the coastal system of the Chilean Northern PatagoniaClimate ChangeOceanographic conditions in coastal Chilean northern Patagonia (41–46°S) are strongly influenced by freshwater inputs. Precipitation and streamflow records have shown a marked decrease in this area during the last decades. Ver PDF
2019Barrena J., Lamers M., Bush S., Blanco G.Governing nature-based tourism mobility in
National Park Torres del Paine, Chilean Southern
Patagonia
MobilitiesNature-based tourism is a mobile activity shaped by the capacity of tourists for displacement . Ver PDF
2019Hopwood M., Carroll D., Höfer J., Achterberg E., Meire L., Le Moigne F., Bach L., Eich C., Sutherland D., González H.Highly variable iron content modulates iceberg-ocean fertilisation and potential carbon exportNature CommunicationsMarine phytoplankton growth at high latitudes is extensively limited by iron availability.
Icebergs are a vector transporting the bioessential micronutrient iron into polar oceans.
Therefore, increasing iceberg fluxes due to global warming have the potential to increase
marine productivity and carbon export, creating a negative climate feedback... Ver PDF
2019Pretterebner K., Pardo L., y Paschke K. Temperature-dependent
seminal recovery in the southern king crab Lithodes santolla
Royal Society Open SciencieMale-biased fishery management can provoke depletion of seminal reserves, which is the primary cause of sperm limitation. Ver PDF
2019Laterra P., Nahuelhual L., Vallejos M., Berrouet L., Arroyo E., Enrico L., Jiménez C., Mejía Kathya, Meli P., Rincón A., Salas D., Špirić J., Villegas J., Villegas C.Linking inequalities and ecosystem services in Latin AmericaEcosystem ServicesLatin America exhibits one of the highest rates of biodiversity and ecosystem services (ES) loss worldwide along with a remarkable asymmetry in the access to ES benefits Ver PDF
2019Vargas L,, Muñoz J., Ocampo D., Paschke K., Navarro J. The effect of alterations in salinity and temperature on neuroendocrine responses of the Antarctic fish Harpagifer antarcticusComparative Biochemistry and Physiology, Part AIncreased levels of tissue monoaminergic neurotransmitters, as well as circulating catecholamines, appear to play a role in the regulation of the physiological responses of teleost fish. Ver PDF
2019Nahuelhual L., Defeo O., Vergara X., Blanco G., Marín S., Bozzeda F.Is there a blue transition underway?Wiley Fish and FisheriesIn this study, we describe what we term a Blue Transition, defined as the passage from
fish biomass reduction to recovery in exploited aquatic resources, enabled by aquaculture. Ver PDF
2019Nahuelhual L., Defeo O., Vergara X., Blanco G., Marín S., Bozzeda F. Is there a blue transition underway?Wiley Fish and FisheriesIn this study, we describe what we term a Blue Transition, defined as the passage from fish biomass reduction to recovery in exploited aquatic resources, Ver PDF
2019Flores K., López Z., Muñoz C., González C., Oliva M., Cárdenas L.Identification assisted by molecular markers of larval parasites in two limpet species (Patellogastropoda: Nacella) inhabiting Antarctic and Magellan coastal systemsPolar BiologyIn the Southern Ocean, many parasites of vertebrates (mainly helminth groups) have been recognized as endemic species, but parasites of marine invertebrates remain almost unknown. Ver PDF
2019Flores K., López Z., Levicoy D.,
Muñoz C., González C.,
Wevar M., Cárdenas O.
Identification assisted by molecular markers of larval parasites in two limpet
species (Patellogastropoda: Nacella) inhabiting Antarctic and Magellan coastal systems
Polar BiologyIn the Southern Ocean, many parasites of vertebrates (mainly helminth groups) have been recognized as endemic species, but parasites of marine invertebrates remain almost unknown. Ver PDF
2019Féral J., Poulin E., González C., Améziane N., Guillaumot C., Develay E., Saucède T.Long-term monitoring of coastal benthic habitats in the Kerguelen Islands: a legacy of decades of marine biology researchMarine Ecosystem and Fisheries:In the current context of climate change, sea-surface temperature variation, sea level rise and latitudinal shifts of currents and hydrological fronts are expected to affect marine biodiversity of the sub-Antarctic Islands, particularly in coastal waters. Ver PDF
2019Mellado C., Chaparro O., Duarte C., Villanueva P., Ortiz A., Valdivia N., Torres R., Navarro J.Ocean acidification exacerbates the effects of paralytic shellfish toxins on
the fitness of the edible mussel Mytilus chilensis
Science of the Total EnvironmentHigh latitudes are considered particularly vulnerable to ocean acidification, since they are naturally lowin carbonate ions. Ver PDF
2019Alves C., Iriarte J., Mardones J. Interannual Variability of Dinophysis acuminata and
Protoceratium reticulatum in a Chilean Fjord: Insights from the Realized Niche Analysis
Toxins Here, we present the interannual distribution of Dinophysis acuminata and Protoceratiumreticulatum over a 10-year period in the Reloncaví Fjord, a highly stratified fjord in southern Chile. Ver PDF
2019Cuevas L., Tapia F., Iriarte J., González H., Silva N., Vargas C.Interplay between freshwater discharge and oceanic waters modulates phytoplankton size-structure in fjords and channel systems of the Chilean PatagoniaProgress in OceanographyHere, we participated in five independent research cruises that spanned almost the entire Patagonian fjords
region (from 41.5 to 56.0°S) Ver PDF
2019Cuevas L., Tapia F., Iriarte J., González H., Silva N., Vargas C.Interplay between freshwater discharge and oceanic waters modulates phytoplankton size-structure in fjords and channel systems of the Chilean PatagoniaProgress in OceanographyHere, we participated in five independent research cruises that spanned almost the entire Patagonian fjords region (from 41.5 to 56.0°S) in order to determine the importance of the physical/chemical factors that influence phytoplankton size structure triggered by freshwater discharge and oceanic water intrusion. Ver PDF
2019Andradre P., Navarro J., Aliste S., Chaparro O., Ortíz A. Trophic transfer of paralytic shellfish toxin (PST): Physiological and reproductive effects in the carnivorous gastropod Acanthina monodon (Pallas, 1774)Aquatic ToxicologyHarmful algal blooms can adversely affect different levels of the trophic chain, from primary consumers, such as bivalve molluscs, to higher links such as large fish, birds and mammals, including humans. Ver PDF
2019Andrade V., Navarro J., Aliste S., Chaparro O.Trophic transfer of paralytic shellfish toxin (PST): Physiological and reproductive effects in the carnivorous gastropod Acanthina monodon (Pallas, 1774)Aquactic ToxicologyHarmful algal blooms can adversely affect different levels of the trophic chain, from primary consumers, such as bivalve molluscs, to higher links such as large fish, birds and mammals, including humans. Ver PDF
2019Giesecke R., Höfer J., Vallejos T., González H. Death in southern Patagonian fjords: Copepod community structure and mortality in land- and marine-terminating glacier-fjord systems. Progress in OceanographyGlacial retreat at high latitudes has increased significantly in recent decades associated with global warming... Ver PDF
2019Giesecke R., Höfer J., Vallejos T., González H.Death in southern Patagonian fjords: Copepod community structure and mortality in land- and marine-terminating glacier-fjord systemsProgress in OceanographyGlacial retreat at high latitudes has increased significantly in recent decades associated with global warming. Along Chile's Patagonian fjords, this has promoted increases in freshwater discharge, vertical stratification, and the input of organic and inorganic particles to fjords. Ver PDF
2019Trujillo J. Pardo L., Vargas L., Valdivia N.Sharks in the forest: relationships between kelp
physical-complexity attributes and egg deposition
sites of the red-spotted catshark
Marine Ecology Progress SeriesFoundational organisms, such as corals, mangroves, and kelps, form structurally complex habitats in multiple coastal ecosystems of the world. Ver PDF
2019Harambour A., Barrena J.Barbarie o justicia en la Patagonia occidental: las violencias coloniales en el ocaso del pueblo kawésqar, finales del siglo
XIX e inicios del siglo XX
Historia CríticaEste artículo analiza las formas particulares de violencia interétnica en el territorio marino, o maritorio, ocupado históricamente por el pueblo kawésqarVer PDF
2019Höfer J., Giesecke R. Hopwood M., Carrera V., Alarcón E., González H.The role of water column stability and wind mixing in the production/ export dynamics of two bays in the Western Antarctic PeninsulaProgress in OceanographyDuring January and February 2017 massive phytoplankton blooms (chlorophyll > 15 mgm−3) were registered in surface waters within Ver PDF
2019Zenteno, L., Cárdenas, L., Valdivia, N., Gómez, I., Höfer, J., Garrido, I., Pardo L.Unraveling the multiple bottom-up supplies of an Antarctic nearshore benthic
community
Progress in OceanographyDisentangling the bottom-up controls of natural ecosystems is key to understanding the capacity of local communities to resist natural and anthropogenic disturbances.Ver PDF
2019Zenteno L., Cárdenas L., Valdivia N., Gómez I., Höfer J., Garrido I., Pardo L.Unraveling the multiple bottom-up supplies of an Antarctic nearshore
benthic community
Progress in OceanographyDisentangling the bottom-up controls of natural ecosystems is key to understanding the capacity of local communities to resist natural and anthropogenic disturbances. Ver PDF
2019Zenteno L., Cárdenas L., Valdivia N., Gómez I., Höfer J., Garrido I., Pardo L.Unraveling the multiple bottom-up supplies of an Antarctic nearshore benthic communityProgress in OceanographyDisentangling the bottom-up controls of natural ecosystems is key to understanding the capacity of local communities to resist natural and anthropogenic disturbances... Ver PDF
2019Tapia P., Magg C., Macaya E., Verbruggen H.Widely distributed red algae often represent hidden introductions, complexes of cryptic species or species with strong phylogeographic structure Phycological Society of AmericaDespite studies suggesting that most seaweeds are poor dispersers, many red algal species are reported to have circumglobal distributions. Ver PDF
2019Bozzeda F., Marín S., Nahuelhual L.An uncertainty-based decision support tool to evaluate the southern king crab (Lithodes santolla) fishery in a scarce information contextProgress in OceanographyDecision-making in fishery management depends on the reliable quantification of uncertainty, which emerges from a variety of sources. For small-scale fisheries (SSF) in developing countries Ver PDF
2019Tala F., López B., Velásquez M., Jeldres R., Macaya E., Mansilla A., Ojeda J., Thiel M. Long-term persistence of the floating bull kelp Durvillaea antarctica from the
South-East Pacific: Potential contribution to local and transoceanic
connectivity
Marine Environmental ResearchCurrent knowledge about the performance of floating seaweeds as dispersal vectors comes mostly from mid latitudes Ver PDF
2019Díaz-Tapia P., Maggs C., Nelson W., Macaya E., Verbruggen H.Reassessment of the genus Lophurella (Rhodomelaceae, Rhodophyta) from Australia and New Zealand reveals four cryptic speciesEuropean Journal of PhycologyCryptic diversity is common in the red algae and is often discovered when comparing specimens from distant locations or different morphotypes of species with high phenotypic plasticity. The genus Lophurella includes seven species from the cold-temperate coasts of the southern hemisphere. L. periclados is the only species reported from Australia where two morphotypes were identified in relation to levels of wave exposure... Ver link
2019Rodríguez S., Uribe J., Estay S., Palacios M., Pinochet R., Oyarzún S., Valdivia N.Widespread infection of Areospora rohanae in southern king crab (Lithodes santolla) populations across south Chilean PatagoniaRoyal Society Open ScienceCottage cheese disease is caused by microsporidian parasites that infect a wide range of animal populations. Despite its potential to affect economically important activities, the spatial patterns of prevalence of this disease are still not well understood... Ver PDF"
2019Musrri C., Poore A., Hinojosa I., Macaya E., Pacheco A., Pérez-Matus A., Pino-Olivares O., Riquelme-Pérez N., Stotz W., Valdivia N., Villalobos V., Thiel M.Variation in consumer pressure along 2,500 km in a major upwelling system: crab predators are more important at higher latitudesMarine BiologyConsumer pressure in benthic communities is predicted to be higher at low than at high latitudes, but support for this pattern has been ambiguous, especially for herbivory... Ver link
2019Musrri C., Poore A., Hinojosa I., Macaya E., Pacheco A., Pérez-Matus A., Pino-Olivares O., Riquelme-Pérez N., Stotz W., Valdivia N., Villalobos V., Thiel M.Variation in consumer pressure along 2500 km in a major upwelling system: crab predators are more important at higher latitudesMarine BiologyConsumer pressure in benthic communities is predicted to be higher at low than at high latitudes, but support for this pattern has been ambiguous, especially for herbivory. To understand large-scale variation in biotic interactions, we quantify consumption (predation and herbivory) along 2500 km of the Chilean coast (19°S–42°S)... Ver link
2019López D., Camus P., Valdivia N. Estay S.Integrating species and interactions into similarity metrics: a graph theory-based
approach to understanding community similarity
PeerJCommunity similarity is often assessed through similarities in species occurrences
and abundances (i.e., compositional similarity) or through the distribution of species interactions (i.e., interaction similarity). Ver PDF
2019Bringloe T., Macaya E., Saunders G.The phylogeographic history of amphitropical Callophyllis variegata (Florideophyceae, Rhodophyta) in the Pacific OceanAlgaeChilean species of marine macroalgae with amphitropical distributions oftentimes result from introductions out of the Northern Hemisphere. Ver PDF
2019Huovinen P., Ramírez J., Caputo L., Gómez I.Mapping of spatial and temporal variation of water characteristics through satellite remote sensing in Lake Panguipulli, ChileScience of the Total EnvironmentCentral-southern Chile is characterized by a series of large lakes that originate in the Andes Mountains. Ver PDF
2019Navarro J., Paschke K., Ortiz A., Vargas L., Pardo M., Valdivia N. The Antarctic fish Harpagifer antarcticus under current temperatures and
salinities and future scenarios of climate change
Progress in OceanographyAntarctic coasts are highly vulnerable environments where temperature have remained very constant along
millions of years. Ver PDF
2019Gómez I,. Navarro N., Huovinen P.Bio-optical and physiological patterns in Antarctic seaweeds: A functional trait based approach to characterize vertical zonationProgress in OceanographyA suite of photosynthetic and bio-optical properties of 29 Antarctic seaweeds from Fildes Bay, King George Island, were studied in order to address the question whether their different functional traits... Ver PDF
2019Gómez I., Navarro N., Huovinen P.Bio-optical and physiological patterns in Antarctic seaweeds: A functional trait based approach to characterize vertical zonationProgress in OceanographyA suite of photosynthetic and bio-optical properties of 29 Antarctic seaweeds from Fildes Bay, King George Island, were studied in order to address Ver PDF
2019Benra F., Nahuelhual L. A trilogy of inequalities: Land ownership, forest cover and ecosystem
services distribution
Land Use PolicyA main challenge in sustainability sciences is to incorporate distributional aspects into ecosystem management and conservation. Ver PDF
2018González-Wevar C., Segovia N., Rosenfeld S., Ojeda J., Hune M., Naretto J., Saucede T., Brickle P., Morley S., Pierre J., Spencer H., Poulin E. Unexpected absence of island endemics: Long-distance dispersal in higher latitude sub-Antarctic Siphonaria (Gastropoda: Euthyneura) species (Gastropoda: Euthyneura) speciesJournal of BiogeographyWe assess biogeographical patterns, population structure and the range of species in the pulmonate genus Siphonaria across the sub‐Antarctic... Ver PDF
2018Nahuelhual L., Benra F., Laterra P., Marin S., Arriagada R., Jullian C.Patterns of ecosystem services supply across farm properties: Implications for ecosystem services-based policy incentivesScience of the Total EnvironmentTraditional bioassays are still necessary to test sensitivity of sea lice species to... Ver PDF
2018Duarte C., Navarro J., Quijón P., Loncon D., Torres R., Manríquez P., Lardies M., Vargas C., Lagos N.The energetic physiology of juvenile mussels, Mytilus chilensis (Hupe): The prevalent role of salinity under current and predicted pCO2 scenarios*Enviromental PollutionThis study describes de novo transcriptome sequencing and annotation analyses for the head kidney of the sub-Antarctic notothenioid fish Eleginops maclovinus, a sister group of the Antarctic notothenioid fish clade... Ver PDF
2018Correa H., Blanco G., Barrena J., Tacón A.Self-organizing processes in urban green commons. The case of the Angachilla wetland, Valdivia-ChileInternational Journal of the CommonsThis article focuses on self-organizing processes in contested urban social-ecological systems. It analyzes a wetland conservation program and... Ver PDF
2018Lara C., Saldías G., Westberry T., Berrenfeld M., Broitman B. First assessment of MODIS satellite ocean color products (OC3 and nFLH) in the Inner Sea of Chiloé, northern PatagonLatin American Journal of Aquatic Research The use of remote sensing has allowed enormous progress in our understanding of biophysical processes worldwide... Ver PDF
2018Lara C., Saldías G., Westberry T., Berrenfeld M., Broitman B. First assessment of MODIS satellite ocean color products (OC3 and nFLH) in the Inner Sea of Chiloé, northern PatagonLatin American Journal of Aquatic Research The use of remote sensing has allowed enormous progress in our understanding of biophysical processes worldwide... Ver PDF
2018Quintanilla D., Quijón P., Navarro J., Pulgar J., Duarte C.Living on a trophic subsidy: Algal quality drives an upper-shore herbivore’s consumption, preference and absorption but not growth ratesPLoS ONEThe transfer of seaweeds from subtidal bottoms to nearby intertidal rocky shores is a common but often overlooked phenomenon... Ver PDF
2018Fanini L. Bozzeda F.Dynamics of plastic resin pellets deposition on a microtidal sandy beach: Informative variables and potential integration into sandy beach studiesEcological IndicatorsThe study addressed temporal dynamics of plastic resin pellets input on a Mediterranean beach... Ver PDF
2018Navarro N., Huovinen P., Gómez I. Photosynthetic characteristics of geographically disjunct seaweeds: a case study on the early life stages of Antarctic and Subantarctic species.Progress in OceanographyThe processes underpinning the differences between Antarctic and sub-Antarctic ecological communities are still
unclear... Ver PDF
2018Höfer J.,González H., Laudien J., Schmidt G., Häussermann V., Richter C.All you can eat: the functional response of the cold-water coral Desmophyllum dianthus feeding on krill and copepods. PeerJ. The feeding behavior of the cosmopolitan cold-water coral (CWC) Desmophyllum dianthus (Cnidaria: Scleractinia) is still poorly known)... Death in southern Patagonian fjords: Copepod community structure and mortality in land- and marine-terminating glacier-fjord systemser PDF
2018Mellado C., Chaparro O., Duarte C., Villanueva P., Ortiz A., Valdivia N., Torres R., Navarro J.Ocean acidification exacerbates the effects of paralytic shellfish toxins on
the fitness of the edible mussel Mytilus chilensis
Science of the Total EnvironmentThe distribution of the Southern Ocean (SO) biota is the result of major geological, oceanographic, and climate changes during the last 50 million years (Ma)... Ver PDF
2018Vargas C., Cuevas L., Silva N, González H., De Pol-Hoz R., Narváez D. Influence of glacier melting and river discharges on the nutrient distribution and DIC recycling in the Southern Chilean Patagonia. Journal of Geophysical ResearchBiogeosciencesThe Chilean Patagonia constitutes one of the most important and extensive fjord systems worldwide, therefore can be used as a natural laboratory to elucidate the pathway of both organic and inorganic matter in the receiving environment... Ver PDF
2018Pizarro G., Paz B., Alarcón, C., Toro, C., Frangópulos M. Salgado P., Olave C. Zamora, C., Pacheco, H., Guzmán, L.Winter distribution of toxic, potentially toxic phytoplankton, and shellfish toxins in fjords and channels of the Aysén region, ChileLatin american journal of aquatic researchThe Aysén region (43°-47ºS) has been prone to intensive summer blooms of toxic microalgae and complex toxin profiles in the shellfish... Ver PDF
2018Llanos-Rivera A., Castro L., Vásquez P., Silva J., Bay-Schmith E. The impact of kraft pulping effluent on egg survival and hatching success in two species of Clupeiformes (Teleostei). Environmental Science And PollutionThe anchoveta (Engraulis ringens) and sardine (Strangomera bentincki) are coastal pelagic species with important spawning areas off the coast of Chile... Ver PDF
2018Iriarte J.Natural and Human Influences on Marine Processes in Patagonian Subantarctic Coastal WatersFrontiers in Marine Science.Some of the largest climate changes on Earth are projected for high-latitude polar and subpolar environments in the coming decades (IPCC, 2014). A number of simultaneous socio-environmental perturbations are affecting Patagonia (41–55 S), a vast and complex ecosystem whose economic and societal well-being depends on coastal resources ( 80% of people live near-shore; the coastal economy provides>40,000 jobs)... Ver PDF
2018Huovinen P., Ramírez J., Gómez I. Remote sensing of albedo-reducing snow algae and impurities in the Maritime AntarcticaISPRS Journal of Photogrammetry and Remote SensingSnow algae have been proposed to play a key role in climate change as they can reduce albedo (“bioalbedo”) and thus accelerate the melting of snow and ice fields... Ver PDF
2018Vargas-Lagos C., Pontigo J., Oyarzún R., Soto-Dávila M., Morera F., Yáñez A., Vargas-Chacoff L.Intestinal incomplete process on the osmoregulation system during Salmo salar smoltification in a productive conditionsAquaculture Smoltification under intensive aquaculture conditions involves important physiological changes to intestinal structures that facilitate acclimation to hyperosmotic environments. This study evaluated if genic expression of primary contributors during the smoltification process in the intestine are in synchrony with gill Na+/K+-ATPase activity... Ver PDF
2018Nahuelhual L., Saavedra G, Blanco G., Wesselink E., Campos G., Vergara X.On super fishers and black capture: Images of illegal fishing in artisanal fisheries of southern ChilMarine PolicySeveral studies describe gastrointestinal tract (GIT) melatonin (MEL) synthesis from 5-HT, which itself derives... Ver PDF
2018Navarro J., Widdows J., Chaparro O., Ortız A., Mellado C., Villanueva P. Pre-ingestive selection capacity and endoscopic analysis in the sympatric bivalves Mulinia edulis and Mytilus chilensis exposed to diets containing toxic and non-toxic dinoflagellatesPLoS ONESeveral studies describe gastrointestinal tract (GIT) melatonin (MEL) synthesis from 5-HT, which itself derives from the essential amino acidVer PDF
2018Mardones O., Devia E., Labbé B., Oyarzún R., Vargas-Chacoff L., Muñoz J.Effect of L-tryptophan and melatonin supplementation on the serotonin gastrointestinal content and digestive enzymatic activity for Salmo salar and Oncorhynchus kisutchAquacultureSeveral studies describe gastrointestinal tract (GIT) melatonin (MEL) synthesis from 5-HT, which itself derives
from the essential amino acid L-tryptophan (L-trp) in the intestine... Ver PDF
2018Montory J., Cumillaf J., Cubillos V., Paschke K., Urbina M., Gebauer P.Early development of the ectoparasite Caligus rogercresseyi under combined salinity and temperature gradients AquacultureSeveral studies describe gastrointestinal tract (GIT) melatonin (MEL) synthesis from 5-HT, which itself derives from the essential amino acid Ver PDF
2018Aracena C., González, H. Garcés-Vargas J., Lange C., Pantoja S., Muñoz, F., Teca E., Tejos E. Influence of summer conditions on surface water properties and phytoplankton productivity in embayments of the South Shetland IslandsPolar BiologyPhytoplankton productivity in glaciomarine embayments of the West Antarctic Peninsula is constrained because of extensive
thermohaline variability, which is due to seasonal sea-ice and glacial melting... Ver PDF
2018Aracena C., González H., Garcés J., Lange C., Pantoja S., Muñoz S., Teca E., Tejos E.


Influence of summer conditions on surface water properties
and phytoplankton productivity in embayments of the South Shetland
Islands
Polar BiologyPhytoplankton productivity in glaciomarine embayments of the West Antarctic Peninsula is constrained because of extensive thermohaline variability, which is due to seasonal sea-ice and glacial melting. To determine whether or not this afects the biology of the water column, we explored the infuence of surface water properties on phytoplankton productivity in four embayments of the South Shetland Islands (SSI) during late summer of 2013...Ver PDF
2018Sánchez N., Brown E., Olsen Y., Vadstein O., Iriarte J., González H., Van Ardelan M.Effect of Siderophore on Iron Availability in a Diatom and a Dinoflagellate Species: Contrasting Response in Associated BacteriaMarine ScienceOrganic ligands play a key role controlling trace metal bioavailability in the world's oceans, yet the species-specific requirements determining whether certain iron forms can be metabolized largely remain unclear... Ver PDF
2018Jacob B., Tapia F., Quiñones R., Montes R., Sobarzo M., Schneider W., Daneri G., Morales C., Montero P., González H. Major changes in diatom abundance, productivity, and net community metabolism in a windier and dryer coastal climate in the southern Humboldt CurrentProgress in OceanographyOngoing global warming caused by climate change has been suggested to produce an intensification of upwelling... Ver PDF
2018Gaitán J., González C., Poulin E., Cárdenas L.Antarctic and sub-Antarctic Nacella limpets reveal novel evolutionary characteristics
of mitochondrial genomes in Patellogastropoda
Molecular Phylogenetics and EvolutionMitochondrial genomes (mitogenomes) provide valuable phylogenetic information and genome-level characters that are useful in resolving evolutionary relationships within major lineages of gastropods. Ver PDF
2018Boyd P., Collins S., Dupont S., Fabricius K., Gattuso J., Havenhand J., Hutchins A., Riebesell U., Rintoul M., Vichi M., Biswas H., Ciotti A., Gao K., Gehlen M., Hurd C., Kurihara H., McGraw C. Navarro J., Nilsson G., Passow U., P€ortner H. Experimental strategies to assess the biological ramifications of multiple drivers of global ocean change—A reviewGlobal Change BiologyMarine life is controlled by multiple physical and chemical drivers and by diverse ecological processes... Ver PDF
2018Mellado M., Blanco-Wells G., Nahuelhual L., Saavedra G.Livelihood trajectories in the Chilean Patagonian region: an ethnographic approach to coastal and marine socioecological changeRegional Environmental ChangeLivelihood trajectories are a conceptual device to synthetize the collection of successive strategies displayed by individuals and groups to ensure survival and wellbeing over time... Ver PDF
2018Dubrasquet H., Reyes J., Pinochet R., Valdivia N., Guillermin M.Molecular-assisted revision of red macroalgal
diversity and distribution along the Western Antarctic
Peninsula and South Shetland Islands
Cryptogamie, AlgologieLa flore marine de la zone Antarctique est supposée bien connue car relativement
peu d’espèces y sont observées par rapport à d›autres régions du monde... Leer PDF
2018Iriarte J., Cuevas L., Cornejo F., Silva N., González H., Castro L. Low spring primary production and microplankton carbon biomass in Sub-Antarctic Patagonian channels and fjords (50–53°S)Artic, Antartic, and Alpine ResearchIt is relevant to understand the processes and factors that modulate the efficiency of the carbon pump throughout the ecosystem of Patagonian fjords... Ver PDF
2018Guillemin M., Dubrasquet H., Reyes J., Valero M.Comparative phylogeography of six red algae along the Antarctic Peninsula: extreme genetic depletion linked to historical bottlenecks and recent expansiónPolar BiologyIn the Southern Ocean, rapid climatic fluctuations during the Quaternary are thought to have induced range contractions
and bottlenecks, thereby instigating genetic divergence and potentially even speciation of marine species... Ver PDF
2018Pardo L., Paz M., Chaparro O., Pretterebner K.Ejaculate allocation in Brachyura: What do males of Metacarcinus edwardsii respond to?
Aquatic BiologyIn polygynous species, the sperm economy hypothesis predicts that males can adjust the amount of their ejaculate during copulation in response to (1) individual traits of females according to potential female fecundity, (2) future mating opportunities, and (3) risk of sperm competition... Ver PDF
2018Nahuelhual L., Saavedra G., Henríque F., Benra F., Vergara X., Perugache C., Hasen F. Opportunities and limits to ecosystem services governance in developing countries and indigenous territories: The case of water supply in Southern ChileEnvironmental Science and PolicyIllegal fishing (IF) is an unrelenting problem for small-scale fisheries governance worldwide, one with complex causes and solutions... Ver PDF
2018Martínez D., Pontigo J., Morera J., Yañéz A., Vargas-Chacoff L.Head Kidney Transcriptome Analysis and Characterization for the Sub-Antarctic Notothenioid Fish Eleginops maclovinusFishesHigh latitudes are considered particularly vulnerable to ocean acidification, since they are naturally lowin carbonate
ions... Ver PDF
2018Meerhoff E., Castro L., Tapia F., Pérez-Santos I. Hydrographic and Biological Impacts of a Glacial Lake Outburst Flood (GLOF) in a Patagonian FjordEstuaries and CoastsGlacial lake outburst floods (GLOFs) in Northern Patagonian Ice Field affecting the Baker River basin have increased their frequency in recent years... Ver PDF
2018Mendes R., Saldías G., deCastro M., Gómez M., Vaz N., Dias M. Seasonal and interannual variability of the Douro turbid river plume, northwestern Iberian Peninsula Remote SensingofEnvironment Geographically widespread species must cope with environmental differences between habitats. Information concerning geographic variations in response to climate variability... Ver PDF
2018Harambour A.Soberanía y corrupción. La construcción del Estado y la propiedad en Patagonia austral (Argentina y Chile, 1840-1920). HistoriaEste artículo presenta una canción popular que sitúa su narración en la Tierra del Fuego de fines del siglo XIX, y analiza los componentes de veracidad, ficción y falsedad... Ver PDF
2018Büchner-Miranda J., Thompson R., Pardo L., Matthews-Cascon H., Salas-Yanquin L., Andrade-Villagrán P., Chaparro O.Enveloping walls, encapsulated embryos and intracapsular fluid: changes during the early development stages in the gastropod Acanthina monodon (Muricidae).Journal of Molluscan StudiesEncapsulation of embryos in marine gastropods affords protection for the developing young, whether or not parental care takes place. The capsule wall is laminated and its dimensions change during development... Ver PDF
2018Villaseñor-Parada C., Pauchard A., Ramírez M., Macaya E.Macroalgas exóticas en la costa de Chile continental: patrones espaciales y temporales en el proceso de invasiónLatin American Journal of Aquatic Research.En este trabajo se propone una lista de 14 especies de macroalgas exóticas en la costa de Chile, además de otras tres especies que, siendo nativas a la costa chilena, han sido introducidas en sectores fuera de su rango natural de distribución... Ver PDF
2018Martínez D., Díaz-Ibarrola D., Vargas C., Oyarzún R., Pontigo J., Muñoz J., Yáñez J., Vargas-Chacoff L.Immunological response of the Sub-Antarctic Notothenioid fish Eleginops maclovinus injected with two strains of Piscirickettsia salmonis. Fish and Shellfish ImmunologyEleginops maclovinus is an endemic fish to Chile that lives in proximity to salmonid culture centers, feeding off of... Ver PDF
2018Díaz-Tapia P., Maggs, C. Macaya E., Verbruggen H.Widely distributed red algae often represent hidden introductions, complexes of cryptic species or species with strong phylogeographic structure. journal of phycologyDespite studies suggesting that most seaweeds are poor dispersers, many red algal species are reported to have circumglobal distributions... Ver PDF
2018Caputo L., Huovinen P., Sommaruga R., Gómez I. Water transparency affects the survival of the medusa stage of the invasive freshwater jellyfish Craspedacusta sowerbiiHydrobiologiaCraspedacusta sowerbii is a global invader of inland waters, but little is known on what environmental factors control its colonization success... Ver PDF
2018Valdés V., Fernandéz C., Molina V., Escribano R., Joux F.Dissolved compounds excreted by copepods shape the active marine bacterioplankton community compositionFrontiers in Marine ScienceCopepods are important suppliers of bioreactive compounds for marine bacteria through... Ver PDF
2018Bilyk K., Vargas-Chacoff L., Cheng C.Evolution in chronic cold: varied loss of cellular response to heat in Antarctic notothenioid fishBMC Evolutionary BiologyConfined within the freezing Southern Ocean, the Antarctic notothenioids have evolved to become... Ver PDF
2018Loncoman C., Gutiérrez L., Contreras C., Oyarzún R., Strobel R., Enriquez R., Isla A., Figueroa J., Vargas-Chacoff L., Morera F. BK potassium channel mRNA level changes in gills of Atlantic salmon after brackish water transferAquacultureBK potassium channels are implicated in a variety of physiological processes and they have been characterized in many species from Drosophila to humans although detailed studies about their properties and functions in the osmoregulation of teleosts are still lacking... Ver PDF
2018Aguilera M., Valdivia N., Jenkins S., Navarrete S. Asymmetric competitive effects during species range expansion: An experimental assessment of interaction strength between “equivalent” grazer species in their range overlapJournal of Animal EcologyBiotic interactions are central to the development of theory and concepts in community ecology; experimental evidence has shown theirVer PDF
2018Benítez S., Lagos N., Osores S., Opitz T., Duarte C., Navarro J., Lardies M.,High pCO2 levels affect metabolic rate, but not feeding behavior and fitness, of farmed giant mussel Choromytilus chorusAquaculture Environment InteractionsBenthic habitats such as intertidal areas, sandy or rocky shores, upwelling zones... Ver PDF
2018López B., Macaya E., Jeldres R., Valdivia N., Bota C., Tala F., Thiel M.Spatio-temporal variability of strandings of the southern bull kelp Durvillaea antarctica (Fucales, Phaeophyceae) on beaches along the coast of Chile—linked to local stormsJournal of Applied PhycologyAvailability of floating seaweeds may depend on the seasonal cycles of benthic populations, but our ability to predict temporal patterns of stranded biomasses is still limited. Ver PDF
2018Salas-Yanquin L., Navarro J., Pechenik, J., Montory, J., Chaparro O.Volcanic ash in the water column: Physiological impact on the suspension- feeding bivalve Mytilus chilensisMarine Pollution BulletinAshes settling into the sea from volcanic explosions expose suspension-feeding species to reduced seston quality... Ver PDF
2018Rain-Franco A., Rojas C., Fernandez C.Potential effect of pesticides currently used in salmon farming on photo and chemoautotrophic carbon uptake in central – southern ChileAquacultureAquaculture has become an important component of Chilean economy, especially in the southern region, wherei... Ver PDF
2018Gladkova E., Blanco G., Nahuelhual L. Facing the climate change conundrum at the South Pole: actors’ perspectives on the implications of global warming for Chilean Antarctic governancePolar ResearchAntarctica is recognized as being geopolitically and scientifically important, and as one of the regions with the greatest potential to affect and be affected by global climate change... Ver PDF
2018Kotta J., Valdivia N., Kutser T., Toming K., Rätsep M., Orav-Kotta H.Predicting the cover and richness of intertidal macroalgae in remote areas: a case study in the Antarctic PeninsulaEcology and EvolutionAntarctica is an iconic region for scientific explorations as it is remote and a critical component of the global climate system... Ver PDF
2018Fraser C., Morrison A., McHogg A., Macaya E., Van Sebille E., Ryan P., Padovan A., Jack C., Valdivia N., Waters J. Antarctica’s ecological isolation will be broken by storm-driven dispersal and warming. Nature climate changeAntarctica’s ecological isolation will be broken by storm-driven dispersal and warming. Nature climate changeAntarctica has long been considered biologically isolated1. Global warming will make parts of Antarctica more habitable for invasive taxa, yet presumed barriers to dispersal—especially the Southern Ocean’s strong, circumpolar winds, ocean currents and fronts... Ver PDF
2018Ocaranza P., González-Wevar C., Guillemin M., Rosenfeld S., Mansilla N.Molecular divergence between Iridaea cordata (Turner) Bory de Saint-Vincent from the Antarctic Peninsula and the Magellan RegionJournal of Applied PhycologyAntarctic coasts are highly vulnerable environments where temperature have remained very constant along millions of years... Ver PDF
2018Hernández F., Schneider W., Garcés-Vargas J. Contribution of Ekman pumping to the changes in properties and volume of the Eastern South Pacific Intermediate WaterGayanaAn update on the Eastern South Pacific Intermediate Water (ESPIW) distribution has been possible based on ARGO (Array for Real-Time Geostrophic Oceanography) data... Ver PDF
2018López B., Macaya E., Rivadeneira M., Tala F.. Epibiont communities on stranded kelp rafts of Durvillaea antarctica (Fucales, Phaeophyceae)—Do positive interactions facilitate range extensions? Journal of Biogeography.Aim: This study examines how rafting on floating bull kelps can shape the biogeographic patterns of raft-associated species, and analyses the spatio-temporal variability of taxonomic richness and co-occurrences of epibionts on beach-cast rafts of Durvillaea antarctica along a latitudinal gradient... Ver PDF
2018Bedriñana-Romano L., Hucke-Gaete R., Viddi F., Morales J., Williams R., Asche E., Garcés-Vargas J., Torres-Florez J., Ruiz J.Integrating multiple data sources for assessing blue whale abundance and distribution in Chilean Northern PatagoniaDiversity and DistributionsAim: Species distribution models are useful tools for depicting important habitat, assessing... Ver PDF
2018León J., Ubina M., Garreaud R., Iriarte J.Hydroclimatic conditions trigger record harmful algal bloom in western Patagonia (summer 2016)Scientific ReportsA harmful algal bloom (HAB) of the raphidophyta alga Pseudochattonella cf. verruculosa during the 2016 austral summer (February-March) killed nearly 12% of the Chilean salmon production, causing the worst mass mortality of fish and shellfish ever recorded in the coastal waters of western Patagonia... Ver PDF
2017Fica E., Díaz R., Valdivia N.
General spatial spectral variation in rocky intertidal communities from three biogeographical regions
Journal of BiogeographyUnderstanding general spatial patterns of multiple species is a central aim of biogeography. Spatial analyses of coastal marine assemblages have shown an emergent pattern in that the variability in population abundances increases with increasing spatial scale of observation; i.e. a “red” spectrum of variation in population abundances... Ver PDF
2017Hasbún J., Aldunce P., Blanco G., Browne R.Framing climate change in Chile: discourse analysis in digital media Convergencia, Revista de Ciencias SocialesThis article presents a discourse analysis of four digital media press in Chile with regard to mitigation and adaptation to climate change. The research, unprecedented for the Chilean case, is aimed at acknowledging the news framings by means of which climate change is communicated, since the media are the main source of information on climate change for decision makers and citizens...
Ver PDF
2017Lara C., Saldías G., Westberry T., Behrenfeld M., Broitman B.First assessment of MODIS satellite ocean color products (OC3 and nFLH) in the Inner Sea of Chiloé, northern Patagonia Latin American Journal of Aquatic Research The use of remote sensing has allowed enormous progress in our understanding of biophysical processes worldwide. Despite their importance, the use of satellite bio-optical products is still limited due to optical complexity. In this study we assess the performance of the Moderate Resolution Imaging Spectroradiometer algorithm for chlorophyll-a (MODIS-OC3) and of normalized Fluorescence Line Height (nFLH), in inner waters of northern Chilean Patagonia (41°-45ºS)... Ver PDF
2017Galán A., Thamdrup B., Saldías G., Farías L.Vertical segregation among pathways mediating nitrogen loss (N2 and N2O production) across the oxygen gradient in a coastal up welling ecosystem BiogeosciencesThe upwelling system off central Chile (36.5◦S) isseasonallysubjectedtooxygen(O2)-deficientwaters,with a strong vertical gradient in O2 (from oxic to anoxic conditions) that spans a few metres (30–50m interval) over the shelf. This condition inhibits and/or stimulates processes involved in nitrogen (N) removal (e.g. anammox, denitrification, and nitrification)...Ver PDF
2017Galán A., Thamdrup B., Saldías G., Farías, L. Vertical segregation among pathways mediating nitrogen loss (N2 and N2O production) across the oxygen gradient in a coastal upwelling ecosystemBiogeosciencesThe upwelling system off central Chile (36.5◦S) is seasonally subjected to oxygen (O2)-deficient waters, with a strong vertical gradient in O2 (from oxic to anoxic conditions) that spans a few metres (30–50m interval) over the shelf... Ver PDF
2017Morales K., Sánchez R., Bruning P., Cárdenas L., Manríquez P., Brante A.A multiple microsatellite assay to evaluate the mating behavior of the intensively exploited marine gastropod Concholepas concholepasThe Nautilus The study of reproduction and mating beahavior constitutes a main issue in biology, ecology and evolution, given its relation with fitness traits. Here, we developed a simple microsatellite multiple assay to evaluate the mating strategy and male reproductive success of the marine gastropod Concholepas concholepas (Bruguie `re, 1789),an important fishery resource and a key predator species of Chilean rocky shore communities. Concholepas concholepas is a dioecious species with internal fertilization, encapsulation, and long larval phase... Ver PDF
2017Mendesa R., Saldías G., De Castro M., Gómez-Gesteira M., Vaza N., Dias J.Seasonal andinterannual variabilityofthe Douroturbid riverplume, northwestern IberianPeninsula Remote Sensing of
Environment
The seasonalandinterannualvariabilityofitsturbidplumeisinvestigatedusingoceancolorcomposites from MODIS (Moderate Resolution Imaging Spectroradiometer) sensor aboard the Aqua and Terra satellites (2000–2014) and long-term records of river discharge, wind and precipitation rate.... Ver PDF
2017Valdés V., Fernández C., Molina V., Escribano R.Nitrogen excretion by copepods and its effect on ammonia-oxidizing communities from a coastal upwelling zone
Limnology and OceanographyThe role of zooplankton in microbial nitrogen turnover in marine environments is poorly understood. Here, we present results from two experiments designed to determine the excretion rate of ammonium and dissolved organic nitrogen (DON) by dominant copepods, Acartia tonsa and Paracalanus cf indicus, fed with two natural sized-fractioned diets (20–150 lm and<20 lm), and its possible effects on the transcriptional activity of ammonia monooxygenase subunit A (amoA), a functional marker for ammonia-oxidizing archaea (AOA) and bacteria (AOB), as a response to the input of ammonium and DON by copepod excretion, during autumn and winter in central/southern Chile... Ver PDF
2017Cruces E., Flores-Molina M., Díaz M., Huovinen P., Gómez I.
Phenolics as photoprotective mechanism against combined action of UVradiation and temperature in the red alga Gracilaria chilensis?
Appl Phycol The rhodophyte Gracilaria chilensis is a structuring species of the estuarine and fjord systems in southern Chile and is commercially exploited from natural and farmed populations. Due to its capacity to tolerate extreme variations in environmental conditions, this species is an excellent model organism to examine stress tolerance mechanisms... Ver PDF
2017Gebauer P., Paschke K., Vera C., Toro J., Pardo L., Urbina M.Lethal and sub-lethal effects of commonly used anti-sea lice formulations on non-target crab Metacarcinus edwardsii larvaeChemosphereThe pesticides used by the salmon industry to treat sea lice, are applied in situ via a bath solution and are subsequently discharged into the surrounding medium. The effects of cypermethrin, deltamethrin, azamethiphos and hydrogen peroxide were assessed on the performance of Metacarcinus edwardsii larvae, an important crab for Chilean fishery...Ver PDF
2017Lagleraa L., Tovar-Sánchez A., Iversend M., González H., Naik H., Mangeshg G., Assmyh P., Klaas C., Mazzocchi M., Montresor M., Naqvig S., Smetacek V., Wolf-Gladrowi D.Iron partitioning during LOHAFEX: Copepod grazing as a major driver for iron recycling in the Southern Ocean Marine ChemistryThe LOHAFEX iron fertilization experiment was conducted for 39 days in the closed core of a cyclonic mesoscale eddy located along the Antarctic Polar Front in the Atlantic sector of the Southern Ocean. Mixed layer (ML) waters were characterized by high nitrate (~20μM), low dissolved iron (DFe ~0.2 nM) and low silicate concentrations (below 1μM) restricting diatom growth... Ver PDF
2017Pardo L., Ceroni C., Riveros M., Ernst B., Pino J.Morphology of seminal receptacle of the harvested golden crab Chaceon chilensis and its implication in the fertilization processInvertebrate Biology The external and internal architecture of crab seminal receptacles are closely associated with mating behavior, sperm transfer, and storage patterns, and ultimately reproductive success. Therefore, describing their anatomy contributes to the development of a greater understanding of crab reproductive biology... Ver PDF
2017Navarro N., Figueroa F., Korbee N.Mycosporine-like amino acids vs carrageenan yield in Mazzaella laminarioides (Gigartinales; Rhodophyta) under high and low UV solar irradiance
International Phycological Society
The effects of increased solar photosynthetically active radiation (PAR) and ultraviolet radiation (UVR) on biomass, mycosporine-like amino acid (MAA) content, and carrageenan yield were studied for 14 days in tank-cultivated tetrasporophytes and gametophytes of Mazzaella laminarioides from the Magellan Strait... Ver PDF
2017Nahuelhual L., Vergara X., Kusch A., Campos C., Droguett D.Mapping ecosystem services for marine spatial planning: Recreation opportunities in Sub-Antarctic Chile Marine Policy
The ecosystem services approach has increasingly emerged as a core requirement of ecosystem-based management of the marine space. In this context, explicit quantification and mapping of ecosystem services is considered key. This research proposes a methodological framework that combines Geographic Information Systems and participatory techniques to map the ecosystem service of recreation opportunities, provided by coastal and marine ecosystems... Ver PDF
2017Chetan C., Gaonkar C., Kooistra W., Lange C., Montresor M., Sarno D.Two new species in the Chaetoceros socialis complex (Bacillariophyta): C. sporotruncatus and C. dichatoensis, and characterization of its relatives, C. radicans and C. cinctusPhycological Society of America The diatom genus Chaetoceros is one of the most abundant and diverse phytoplankton in marine and brackish waters worldwide. Within this genus, Chaetoceros socialis has been cited as one of the most common species. However, recent studies from different geographic areas have shown the presence of pseudo-cryptic diversity within the C. socialis complex... Ver PDF
2017Villaseñor-Parada C., Pauchard A., Macaya E.Ecology of marine invasions in continental Chile: What do we know and we need to know?Revista de Biología Marina y Oceanografía The Chilean coast has fewer reports of introduced species for other shores worldwide, which could correspond to a natural phenomenon generated by oceanographic conditions, or an artifact caused by lack of available information. We analyzed 71 papers indexed in Web of Science related with ecology of marine invasions in the Chilean coast, published between 1998-2014, and we determined the current state of the discipline in Chile, and identified the trends (e.g., temporal, spatial, taxonomic) of the investigation... Ver PDF
2017Pérez-Matus A., Ospina-Alvarez A., Camus P., Carrasco S., Fernández M., Gelcich S., Godoy N., Ojeda P. Pardo L., Rozbaczylo, Subida M., Thiel M., Wieters E., Navarrete S. Temperate rocky subtidal reef community reveals human impacts across the entire foodweb Marine Ecology Progress Series Table S1 presents the dataset included in our food web. The designation “taxa” corresponds to the core unit of analysis in the food web. The subtidal food web contains a total of 147 taxa, from which 133 were resolved to the following taxonomic categories: 3 phyla, 2 classes, 1 infraclass, 1 order, 18 genus, 103 species. The remaining taxa correspond to: i) species lumped by taxonomic and trophic relatedness (10 taxa containing lumped groups of amphipods, isopods and polychaetes), ii) resources lumped by ecological function (biofilm, plankton, detritus and human; the latter included in the node fisheries... Ver PDF
2017Vargas-Lagos C., Pontigo J., Oyarzún R., Soto-Dávila M., Morera F., Yáñez A., Vargas-Chacoff L.Intestinal incomplete process on the osmoregulation system during Salmo salar smoltification in a productive conditionsAquacultureSmoltification under intensive aquaculture conditions involves important physiological changes to intestinal...Ver PDF
2017Pardo L., Riveros M., Fuentes J., Pinochet R., Cárdenas C., Sainte-Marie B.High fishing intensity reduces females’ sperm reserve and brood fecundity in a eubrachyuran crab subject to sex- and size-biased harvest ICES Journal of Marine Science Size-selective male fisheries may result in sperm limitation whereby the number of sperm is insufficient to fertilize all oo¨cytes produced by females. In eubrachyuran crabs, females have seminal receptacles for sperm storage which may reduce the risk of sperm limitation over their lifetime... Ver PDF
2017Pireda R., Sarno D., Lange C., Tomasino P., Zingone A., Montresor M.Diatom resting stages in surface sediments: a pilot study comparing Next Generation Sequencing and Serial Dilution Cultures
Cryptogamie, Algologie Several diatom species produce resting stages as part of their life cycle. These resting stages accumulate in the sediments where they can remain for a long time before eventually being re-suspended in the water column and switching to active growth. Until now, the abundance and diversity of viable diatom resting stages have been assessed using the Serial Dilution Culture (SDC) method... Ver PDF
2017Domenici P., Torres R., Manrı́quez P.Effects of elevated carbon dioxide and temperature on locomotion and the repeatability of lateralization in a keystone marine molluscJournal of Experimental Biology Recent work has shown that the behaviour of marine organisms can be affected byelevated PCO2, although little is known about the effect of multiple stressors. We therefore investigated the effect of elevated PCO2 and temperature on locomotion and behaviour during prey searching in the marine gastropod Concholepas concholepas,a predator characteristic of the southeastern Pacific coast... Ver PDF
2017López B., Tellier F., Retamal‑Alarcón J., Pérez‑Araneda K., Fierro A., Macaya E., Tala F., Thiel M.Phylogeography of two intertidal seaweeds, Gelidium lingulatum and G. rex (Rhodophyta: Gelidiales), along the South East Pacific: patterns explained by rafting dispersal?
Marine BiologyRafting on floating seaweeds facilitates dispersal of associated organisms, but there is little information on how rafting affects the genetic structure of epiphytic seaweeds. Previous studies indicate a high presence of seaweeds from the genus Gelidium attached to floating bull kelp Durvillaea antarctica (Chamisso) Hariot... Ver PDF
2017Gaitán-Espitia J., Villanueva P., López J., Torres R., Navarro J., Bacigalupe L.Spatio-temporal environmental variation mediates geographical differences in phenotypic responses to ocean acidification
Biology LettersPhenotypic plasticity is expected to play a major adaptive role in the response of species to ocean acidification (OA), by providing broader tolerances to changes in pCO2 conditions. However, tolerances and sensitivities to future OA may differ among populations within a species because their particular environmental context and genetic backgrounds... Ver PDF
2017Rodríguez S., Valdivia N.Mesoscale spatiotemporal variability in a complex host-parasite system influenced by intermediate host body size
Peer JParasites are essential components of natural communities, but the factors that generates kewed distributions of parasite occurrences and abundances across host populations are not well understood... Ver PDF
2017Véliz D., Duchesne P., Rojas-Hernández N., Pardo L.
Statistical power to detect multiple paternity in populations of highly fertile species: how many females and how many offspring should be sampled?
Behavioral Ecology and SociobiologyOne of the central issues of behavioral ecology focuses on the probability of detecting multiple paternity in a scenario of polygamy. The main problem for this kind of analysis arises in species with large number of offspring in the same litter and large population sizes in which only a small fraction of progeny and females can be analyzed. Here, we present a method to estimate the statistical power to detect multiple paternity for these species... Ver PDF
2017Bertrand S., Lange C., Pantoja S., Hughen K., Van Tornhout E., Wellner J. Postglacial fluctuations of Cordillera Darwin glaciers (southernmost Patagonia) reconstructed from Almirantazgo fjord sedimentsQUATERNARY SCIENCE REVIEWSMost outlet glaciers of the Cordillera Darwin Icefield (CDI; Patagonia, 54°S) are currently transitioning from calving to land-based conditions... Ver PDF
2017Vergara-Amado J., Silva A., Manzia C. Nespolo R., Cárdenas L.Differential expression of stress candidate genes for thermal tolerance in the sea urchin Loxechinus albus Journal of Thermal BiologyMarine ectotherms inhabiting intertidal and shallow subtidal environments are continuously exposed to diurnal tidal cycles and seasonal variability in temperature. These organisms have adaptive mechanisms to maintain cellular homeostasis, irrespective of thermal environmental variation. In this study, we describe the molecular responses to thermal stress inthe edible sea urchinLoxechinus albus... Ver PDF
2017Goecke F., Aránguiz-Acuña A., Palacios M., Muñoz-Muga P., Rucki M., Vítová M.
Latitudinal distribution of lanthanides contained in macroalgae in Chile: an inductively coupled plasma-mass spectrometric (ICP-MS) determination
Journal of Applied PhycologyLanthanide compositions of 17 Chilean macroalgal specieswereanalyzedbyinductivelycoupledplasmamassspectrometry. Samples were collected from four distinct areas (from 23° to 53° S) along the coast of Chile, in the spring of 2014. Lanthanideswereconfirmedinallsamplesandwerefoundover a range of 0.0001–7.62 mg kg−1 dry weight, in agreement with concentrations found in non-polluted areas around the world... Ver PDF
2017Martínez D., Oyarzún R., Pontigo J., Romero A., Yáñez A., Vargas-Chacoff L.Nutritional Immunity Triggers the Modulation of Iron Metabolism Genes in the Sub-Antarctic Notothenioid Eleginops maclovinus in Response to Piscirickettsia salmonisFrontiers in ImmunologyIron deprivation is a nutritional immunity mechanism through which fish can limit the amount of iron available to invading bacteria. The aim of this study was to evaluate the modulation of iron metabolism genes in the liver and brain of sub-Antarctic notothenioid Eleginops maclovinus challenged with Piscirickettsia salmonis... Ver PDF
2017Montero P., Daneri G., Tapia F., Iriarte J., Crawford D. Diatom blooms and primary production in a channel ecosystem of central Patagonia Latin American Journal of Aquatic Research Here we report on the seasonal productivity cycle at a fixed station in the Puyuhuapi Channel (44ºS, 73ºW), Chilean Patagonia. The analysis of in situ water column data and longer-term records of satellitederived surface ocean color (Chl-a) highlighted two contrasting seasons... Ver PDF
2017Schneider W., Donoso D., Garcés-Vargas G., Escribano R.Water-column cooling and sea surface salinity increase in the upwelling region off central-south Chile driven by a poleward displacement of the South Pacific HighProgress in OceanographyHere we present results of direct observations of seawater temperature and salinity over the continental shelf off central-south Chile that shows an unprecedented cooling of the entire water column and an increase in upper layer salinity during 2002 to 2013. We provide evidence that this phenomenon is related to the intensification but mostly to a recent southward displacement of the South Pacific High over the same period, from 2007 on...Ver PDF
2017Osares S., Lagos N., San Martín V., Manríquez P., Vargas C., Torres R., Navarro J., Poupin M., Saldías G., Lardies M.
Plasticity and inter-population variability in physiological and life-history traits of the mussel Mytilus chilensis: A reciprocal transplant experimentJournal of Experimental Marine Biology and Ecology
Geographically widespread species must cope with environmental differences between habitats. Information concerning geographic variations in response to climate variability... Ver PDF
2017Osores S., Lagos N., San Martín V., Manríquez P., Vargas R., Torres R., Navarro J., Poupin G., Saldías G., Lardies M.Plasticity and inter-population variability in physiological and life-history traits of the mussel Mytilus chilensis: A reciprocal transplant experimentJournal of Experimental Marine Biology and EcologyGeographically widespread species must cope with environmental differences between habitats. Information concerning geographic variations in response to climate variability is critical because many morphological, life-history and physiological traits show variation across space... Ver PDF
2017Valdivia N., Segovia- Rivera V., Fica E., Bonta C., Aguilera M., ­Broitman B.Context-­dependent­functional­dispersion­across­similar­rangesof­trait­space­covered­by­intertidal­rocky­shore­communities
Ecology and EvolutionFunctional diversity is intimately linked with community assembly processes, but its large- scale patterns of variation are often not well understood. Here, we investigated the spatiotemporal changes in multiple trait dimensions (“trait space”) along vertical intertidal environmental stress gradients and across a landscape scale... Ver PDF
2017Fierro P., Valdovinos C., Vargas-Chacoff L., Bertrán C., Arismendi I.Macroinvertebrates and Fishes as Bioindicators of Stream Water PollutionIntech OpenFreshwater ecosystems worldwide have been progressively deteriorated during the past decades due to an increasing human pressure that has lead to a decrease in aquatic biodiversity. Among the human activities of high impact on freshwater ecosystems is the land-use change, principally from native forests to agriculture... Ver link
2017Rojas-Hernández N., Véliz D., Riveros M., Fuentes J., Pardo L.Highly Connected Populations and Temporal Stability in Allelic Frequencies of a Harvested Crab from the Southern Pacific Coast
Plos One For marine invertebrates with a benthic adult form and a planktonic larva phase, the connectivity among populations is mainly based on larval dispersal. While an extended larval phase will promote gene flow, other factors such as an intensive fishery and geographical barriers could lead to changes in genetic variability. In this study, the population genetic structure of the commercial crab Metacarcinus edwardsii was analyzed along 700 km of the Chilean coast... Ver PDF
2017Pérez-Matus A., Ospina-Alvarez A., Camus P., Carrasco S., Fernández M., Gelcich S., Godoy N., Ojeda P., Pardo L., Rozbaczylo N., Subida M., Thiel M., Wieters E., Navarrete S.Temperate rocky subtidal reef community reveals human impacts across the entire food web
Marine Ecology Progress SeriesFood webs as representations of who eats whom are at the core of community ecology. Incorporation of tools from network theory enables assessment of how complex systems respond to natural and human-induced stressors, revealing how harvesting may degrade the properties and resilience of food webs... Ver PDF
2017Martínez D., Oyarzún R., Vargas-Lagos C., Pontigo J., Soto-Dávila M., Saravia J., Romero A, Núñez J., Yáñez A., Vargas-Chacoff L.Identification, characterization and modulation of ferritin-H in the sub-Antarctic Notothenioid Eleginops maclovinus challenged with Piscirickettsia salmonis.Developmental and Comparative ImmunologyFerritin is a major iron storage protein essential not only in the infectious process, but also in any circumstance generating oxidative stress. In this study, the cDNA coding sequence of ferritin-H was obtained from the sub-Antarctic Notothenioid fish Eleginops maclovinus through transcriptomic analysis of the head kidney... Ver PDF
2017Harambour A. Ficción, verdad, mentira: breve historia de una canción de Navidad y boxeo en Tierra del Fuego y el mundo (fines del siglo XIX). MagallaniaEste artículo presenta una canción popular que sitúa su narración en la Tierra del Fuego de fines del siglo XIX, y analiza los componentes de veracidad, ficción y falsedad... Ver PDF
2017López D., Camus P., Valdivia N., Estay S.High temporal variability in the occurrence of consumer–resource interactions in ecological networks
OikosEcological networks have been used to represent interactions between species as fixed linkages despite that populations naturally oscillate over time and space. As such, the influence of the persistence of linkages between species in communities has been overlooked. Unfortunately, empirical analysis of the temporal variation of trophic networks is constrained by the lack of data with high spatial, temporal and taxonomic resolution... Ver PDF
2017López B., Macaya E., Tala F., Tellier F., Thiel M.The variable routes of raftings: Stranding dinamics of floating bull kelp Durvillea Antarctica (Fucales, Phaeophyceae) on beaches in the se PacificPhycological Society of America
Dispersal on floating seaweeds depends on availability, viability, and trajectories of the rafts. In the southern hemisphere, the bull kelp Durvillaea antarctica is one of the most common floating seaweeds, but phylogeographic studies had shown low connectivity between populations from continental Chile, which could be due to limitations in local supply and dispersal of floating kelps... Ver PDF
2017Valdés V., Fernández C., Molina V., Escribano R., Joux F.Dissolved Compounds Excreted by Copepods Reshape the Active Marine Bacterioplankton Community CompositionFrontiers in Marine ScienceCopepods are important suppliers of bioreactive compounds for marine bacteria through cal pellet production, sloppy feeding, and the excretion of dissolved compounds. However, the interaction between copepods and bacteria in the marine environment is poorly understood... Ver PDF
2017Quiroga E., Ortiz P., González-Saldías R., Reid B., Tapia F., Pérez-Santos I., Rebolledo L., Mansilla R., Pineda C., Cari I., Salinas N., Montiel A., Gerdes D.Seasonal patterns in the benthic realm of a glacial fjord (Martinez Channel, Chilean Patagonia): the role of suspended sediment...
Marine Ecology Progress Series
Complex marine−terrestrial interactions characterize Chilean fjords, where benthic communities influence the distribution of organic matter (OM). We examined spatial and seasonal changes in the hydrography, sediment conditions and soft-bottom macrobenthic, meiobenthic, and total microbial biomass in a glacial Patagonian fjord (Martinez Channel, Chile). The transport of a high load of glacial mineral and particulate OM to the fjord in the austral summer coincided with low total live benthic biomass... Ver PDF
2017Lee M., Torres R., Manríquez P.The combined effects of ocean warming and acidification on shallow-water meiofaunal assemblagesMarine Environmental ResearchClimate change due to increased anthropogenic CO2 in the atmosphere is causing an increase in seawater temperatures referred to as ocean warming and a decrease in seawater pH, referred to as ocean acidification. The meiofauna play an important role in the ecology of marine ecosystems and the functions they provide. Using microcosms, meiofaunal assemblages were exposed to two temperatures (15 and 19 °C) and two pHs (pCO2 of 400 and 1000 ppm), both individually and in combination, for a period of 90 days... Ver PDF
2017Mork Olsen L., Hernández K., Van Ardelan M., Iriarte J., Bizsel C., Olsen Y.Responses in bacterial community structure to waste nutrients from aquaculture: an in situ
microcosm experiment in a Chilean fjord
Aquacult Environ Interact
Chilean salmon farms release inorganic nutrients excreted by the fish into the surrounding water in Patagonian fjords. The objective of this experiment from the Comau Fjord (42.2° S) in southern Chile was to study how increased input of ammonium (NH4) and phosphate (PO4) from salmon farms might affect the community structure of bacteria in surface waters where fish farms are located... Ver PDF
2017Davis D., Hofmann E., Klinck J., Piñones A., Dinniman D.Distributions of Euphausia superba, Euphausia crystallorophias, and Pleuragramma antarcticum
and correlations with environmental variables in the western Ross Sea, Antarctica
Marine Ecology
Progress Series
Antarctic krill (Euphausia superba), crystal krill (Euphausia crystallorophias), and Antarctic silverfish (Pleuragramma antarcticum) are key mid-trophic level species in the Ross Sea connecting primary production to the upper trophic levels. Distributions of these species were constructed from net-based and acoustic observations collected in the western Ross 24 Sea from 1988-2004...Ver PDF
2017Vargas-Chacoff L., Muñoz J., Hawes C., Oyarzún R., Pontigo J.,. Saravia J., González M., Mardones O., Labbé B., Morera F., Bertrán C., Pino J., Wadsworthd S., Yáñez A.Ectoparasite Caligus rogercresseyi modifies the lactate response in Atlantic salmon (Salmo salar) and Coho salmon (Oncorhynchus kisutch) Veterinary Parasitology
Although Caligus rogercresseyi negatively impacts Chilean salmon farming, the metabolic effects of infection by this sea louse have never been completely characterized. Therefore, this study analyzed lactate responses in the plasma, as wellas the liver/muscle lactate dehydrogenase(LDH) activity and geneexpression, in Salmosalar and Oncorhynchus kisutch infested by C. rogercresseyi... Ver PDF
2017Ortiz M., Hermosillo-Nuñez B., González J., Rodríguez-Zaragoza F., Gómez I., Jordán F.Quantifying keystone species complexes: Ecosystem-based conservation management in the King George Island (Antarctic Peninsula) Ecological Indicators
A keystone species complex (KSC) is a small set of interacting species that play an outstandingly important role in community organization. TwoKSC indices aresuggested andhavebeencalculated inthe coastalbenthic/pelagic ecosystem of Fildes Bay, King George Island (Antarctica)... Ver PDF
2016Villanueva P., Navarro J.Pre-ingestive selection e ciency in two populations of the razor clam Tagelus dombeii with di erent histories of exposure to paralytic shell sh poisoning (PSP)Marine and Freshwater Behaviour and PhysiologyWe studied toxic effects of the dinoflagellate Alexandrium catenella on filtration activity and pre-ingestive selection efficiency in Tagelus dombeii (razor clam)... Ver PDF
2016Huovinen P. Ramírez J., Gómez I.Underwater Optics in Sub-Antarctic and Antarctic Coastal EcosystemsPlos OneUnderstanding underwater optics in natural waters is essential in evaluating aquatic primary production and risk of UV exposure in aquatic habitats. Changing environmental conditions related with global climate change, which imply potential contrasting changes in underwater light climate further emphasize the need to gain insights into patterns related with underwater optics for more accurate future predictions... Ver PDF
2016Salvador-Soler N., Macaya E., Rull-Lluch D., Gómez-Garreta A.
Nuclear DNA content in Gelidium chilense (Gelidiales, Rhodophyta) from the Chilean coastRevista de Biología Marina y Oceanografía There has been progress in novel additions of algal data to the Plant DNA C-values database during recent years; however more information is still required. Specifically, in the case of red algae (Rhodophyta), from ~7000 species described up to date, DNA C-values for only 196 species have been incorporated (~3%)... Ver PDF
2016González H., Graeve M., Kattner G., Silva N., Castro L., Iriarte J., Osmán L., Daneri G., Vargas C.Carbon flow through the pelagic food web in southern Chilean Patagonia: relevance of Euphausia vallentini as a key speciesMarine Ecology Progress Series
The southernmost Patagonian region constitutes a major glaciered area with a high freshwater input loaded with particulate and dissolved matter. We assessed the relevance of the terrestrial (allochthonous) and marine (autochthonous) matter that permeates into the fjord and channel system and their possible impact on the euphausiid-based food web. ..Ver PDF
2016Pavés H., Schlatter H., Fanco-Trecu V., Páez E., Sielfeld W., Araos V., Giesecke R., Batallés L., Cappozzo L.Breeding season of the South American fur seal (Arctocephalus australis, Otariidae: Carnivora): New data for establishing independent evolutionary histories?Revista de Biología Marina y Oceanografía The South American fur seal (SAFS) is distributed from Peru (Pacific Ocean) to Uruguay (Atlantic Ocean). However, there is a section of coastline of about 2,300 km along the Chilean coast where no SAFS are recorded. Based on morphological comparisons 3 geographic forms have been reported (Peruvian, South Chilean, Atlantic), whereas preliminary genetic studies suggest the presence of 3 distinct genetic types (Peruvian, South Chile, Atlantic)... Ver PDF
2016Menschel E., González H., Giesecke R.Coastal-oceanic distribution gradient of coccolithophores and their role in the carbonate flux of the upwelling system off Concepción, Chile (36°S)J. Plankton ResThe role of coccolithophores in the biogenic carbonate cycle was studied in the coastal upwelling zone off Concepción, Chile (36°S), and in adjacent oceanic waters during spring 2004. Coccolithophore abundance and diversity increased steadily from coastal to oceanic regions... Ver PDF
2016Bertrán C., Fierro P., Encalada E., Peña-Cortés F., Tapia J., Hauenstein E., Vargas-Chacoff L.Macrobenthos of the coastal Budi Lagoon, southern Chile: Changes associated with seasonal environmental variationBrazilian Journal of OceanographyThe purpose of the present study was to investigate the seasonal relationship of macrobenthos richness and abundance with sediment characteristics (i.e. texture and organic material) for the coastal Budi Lagoon in southern Chile. Physicochemical measurements and macrobenthos samples were taken over the course of a year at nine sampling stations... Ver PDF
2016Bertrán C., Fierro P., Encalada E., Peña-Cortés F., Tapia J., Hauenstein E., Vargas-Chacoff L.Macrobenthos of the coastal Budi Lagoon, southern Chile: Changes associated with seasonal environmental variationBJOCEThe purpose of the present study was to investigate the seasonal relationship of macrobenthos richness and abundance with sediment characteristics (i.e. texture and organic material) for the coastal Budi Lagoon in southern Chile. Physicochemical measurements and macrobenthos samples were taken over the course of a year at nine sampling stations. Ver PDF
2016Pontigo J., Agüero M., Sánchez P., Oyarzún R., Vargas-Lagos C., Mancilla J., Kossmanng H., Morera F., Yáñez A., Vargas-Chacoff L.Identification and expressional analysis of NLRC5 inflammasome gene
in smolting Atlantic salmon (Salmo salar)
Fish & Shellfish Immunology The NOD-like receptors (NLRs) were recently identified as an intracellular pathogen recognition receptor family in vertebrates. While the immune system participation of NLRs has been characterized and analyzed in various mammalian models, few studies have considered NLRs in teleost species... Ver PDF
2016Schimmelmann A., Lange C., Schieber J., Francus P., Ojala A., Zolitschkae B.Varves in marine sediments: A reviewEarth-Science ReviewsThe global compilation of reported marine varved sedimentary records throughout the Quaternary contains 52 sites. Marine varve deposition and preservation typically depend on environmental and sedimentological conditions, such as a sufficiently high sedimentation rate, severe depletion of dissolved oxygen in bottom water to exclude bioturbation by macrobenthos, and a seasonally varying sedimentary input to yield a recognizable rhythmic varve pattern... Ver PDF
2016Flores-Molina M., Rautenberger R., Muñoz P., Huovinen P., Gómez I.Stress Tolerance of the Endemic Antarctic Brown Alga Desmarestia anceps to UV Radiation and Temperature is Mediated by High Concentrations of PhlorotanninsPhotochemistry and PhotobiologyThe endemic Antarctic brown macroalga Desmarestia anceps is strongly shade-adapted, but shows also a high capacity to cope with different environmental stressors, e.g. UV radiation and temperature. Therefore, this species colonizes wide depth gradients, which are characterized by changing environmental conditions... Ver PDF
2016Gaitán-Espitia J., Sánchez R., Bruning P., Cárdenas L.Functional insights into the testis transcriptome of the edible sea urchin Loxechinus albusScientific RepoRtsThe edible sea urchin Loxechinus albus (Molina, 1782) is a keystone species in the littoral benthic systems of the Pacific coast of South America. The international demand for high-quality gonads of this echinoderm has led to an extensive exploitation and decline of its natural populations... Ver PDF

2016Tejada-Martinez D., López D., Bonta C., Sepúlveda R., Valdivia N.Positive and negative effects of mesograzers on early- colonizing species in an intertidal rocky-shore communityEcology and Evolution
The ecological consequences of human-driven overexploitation and loss of keystone consumers are still unclear. In intertidal rocky shores over the world, the
decrease of keystone macrograzers has resulted in an increase in the dominance of herbivores with smaller body (i.e., “mesograzers”), which could potentially
alter community assembly and structure... Ver PDF
2016Manríquez P., Jara M., Seguel M.,Torres R., Alarcón E., Lee M.Ocean Acidification and Increased Temperature Have Both Positive and Negative Effects on Early Ontogenetic Traits of a Rocky Shore Keystone Predator SpeciesPlos One The combined effect of ocean acidification and warming is expected to have significant effects on several traits of marine organisms. The gastropod Concholepas concholepas is a
rocky shore keystone predator characteristic of the south-eastern Pacific coast of South America and an important natural resource exploited by small-scale artisanal fishermen
along the coast of Chile and Peru... Ver PDF
2016Navarro J., Duarte C., Manríquez P., Lardies M., Torres R., Acuña K., Vargas C., Lagos N.Ocean warming and elevated carbon dioxide: multiple stressor
impacts on juvenile mussels from southern Chile
ICES Journal of Marine Science The combined effect of increased ocean warming and elevated carbon dioxide in seawater is expected to have significant physiological and ecological consequences at many organizational levels of the marine ecosystem. In the present study, juvenile mussels Mytilus chilensis were reared for 80 d in a factorial combination of two temperatures (12 and 168C) and three pCO2 levels (380, 700, and 1000 matm)... Ver PDF
2016Gómez I., Español S., Véliz K., Huovinen P.Spatial distribution of phlorotannins and its relationship with photosynthetic UV tolerance and allocation of storage carbohydrates in blades of the kelp Lessonia spicataMar Biol The action of an intercalary meristem in the fronds determines the growth patterns of the sub-Antarctic kelp Lessonia spicata, which result in gradients in physiological activity and tissue composition... Ver PDF
2016Moreno-Pino M., De la Iglesia R., Valdivia N., Henríquez-Castilo C., Galán A., Diez B., Trefault N.Variation in coastal Antarctic microbial community composition at sub-mesoscale: spatial distance or environmental ltering?FEMS Microbiology Ecology
Spatial environmental heterogeneity infuences diversity of organisms at different scales. Environmental fltering suggests that local environmental conditions provide habitat-specifc scenarios for niche requirements, ultimately determining the composition of local communities... Ver PDF
2016Zi-Min H., Guillemin M. Coastal upwelling areas as safe havens during climate warmingJournal of Biogeography Seaweeds have long been recognized as‘ecosystem engineers’ and carbon sinks in coastal marine ecosystems. However,
recent ocean warming has had drastic ecophysiological impacts on seaweed assemblages and hence coastal community
structure (Wernberg et al., 2011, 2013)... Ver PDF
2016Rodríguez S., D’Elía G., Valdivia N.The phylogeny and life cycle of two species of Profilicollis (Acanthocephala: Polymorphidae) in marine hosts off the Pacific coast of Chile.Journal of HelminthologyResolving complex life cycles of parasites is a major goal of parasitological research. The aim of this study was to analyse the life cycle of two species of the
genus Profilicollis, the taxonomy of which is still unstable and life cycles unclear... Ver PDF
2016Oyarzún P., Toro J., Garcés-Vargas J., Alvarado C., Guiñez R., Jaramillo R., Briones C., Campos B.Reproductive patterns of mussel Perumytilus purpuratus (Bivalvia: Mytilidae), along the Chilean coast: effects caused by climate change?Marine Biological Association of the United Kingdom
Reproductive cycles were studied in seven natural populations of the intertidal bivalve Perumytilus purpuratus, distributed ina latitudinal gradient of 2400 km along the Chilean Pacific coast (20 –408S). The results, both qualitative (gametogenic stages) and quantitative (GSI and GVF), over a period of 24 months, showed that these populations presented asynchrony in the reproductive cycle... Ver PDF
2016Peters-Didier J., Pardo L., Garrido O., Gallardo C.Reproductive biology of the commercial sea cucumber Athyonidium chilensis (Holothuroidea: Dendrochirotida) in southern ChileMarine Biological Association of the United Kingdom,Reproductive aspects of the sea cucumber Athyonidium chilensis were studied over a year in Valdivia, Chile, through gonad index (GI) analysis, macro- and microscopic analysis of the gonads, fecundity and size at first sexual maturity estimations.We also explored the reliability of live size estimators for their use in fisheries... Ver PDF
2016Segovia-Rivera V., Valdivia N.Independent effects of grazing and tide pool habitats on the early colonisation of an intertidal community on western Antarctic Peninsula.Revista Chilena de Historia Natural Prevailing environmental conditions can modulate the structuring role of biotic interactions. In intertidal habitats, less stressful environmental conditions and/or higher grazer densities may allow grazing effects to be stronger in tide pools than on emergent rocks... Ver PDF
2016Rivas, C., Navarro C., Huovinen P., Gómez I.Photosynthetic UV stress tolerance of the Antarctic snow alga Chlorella sp. Modified by enhanced temperature?Revista Chilena de Historia Natural Photosynthetic characteristics and the effect of UV radiation and elevated temperature measured were studied in Chlorella sp. isolated from a snow microalgal community at King George Island, Maritime Antarctica through the chlorophyll florescence (rapid light curves and maximum quantum yield, respectively)... Ver PDF
2016Jacob B., Von Dassow P., Salisbury J., Navarro J., Vargas C.Impact of low pH/high pCO2 on the physiological response and fatty acid content in diatom Skeletonema pseudocostatum
Journal of the Marine Biological Association of the United KingdompCO2/pH perturbation experiments were carried out under two different pCO2 levels to evaluate effects of CO2-driven ocean acidification on semi-continuous cultures of the marine diatom Skeletonema pseudocostatum CSA48. Under higher pCO2/ lowered pH conditions, our results showed that CO2-driven acidification had no significant impact on growth rate, chlorophyll-a, cellular abundance, gross photosynthesis, dark respiration, particulate organic carbon and particulate organic nitrogenbetweenCO2-treatments,suggestingthatS.pseudocostatumisadaptedtotoleratechangesof~0.5unitsofpHunderhigh pCO2 conditions... Ver PDF
2016Ruiz-Jarabo I., González-Wevar C., Oyarzún R., Fuentes J., Poulin E., Bertrán C., Vargas-Chacoff L.Isolation Driven Divergence in Osmoregulation in Galaxias maculatus (Jenyns, 1848) (Actinopterygii: Osmeriformes)Plos OneMarine species have colonized extreme environments during evolution such as freshwaterhabitats. The amphidromous teleost fish, Galaxias maculatusis found mainly migratingbetween estuaries and rivers, but some landlocked populations have been described inlakes formed during the last deglaciation process in the Andes. Ver PDF
2016Ruiz-Jarabo I., González-Wevar C., Oyarzún R., Fuentes J., Poulin E., Bertrán C., Vargas-Chacoff L.Isolation Driven Divergence in Osmoregulation in Galaxias maculatus (Jenyns, 1848) (Actinopterygii: Osmeriformes)Plos OneMarine species have colonized extreme environments during evolution such as freshwater habitats. The amphidromous teleost fish, Galaxias maculatus is found mainly migrating between estuaries and rivers, but some landlocked populations have been described in
lakes formed during the last deglaciation process in the Andes... Ver PDF
2016Sepúlveda R., Valdivia N.Macrobenthic Community Changes of Intertidal Sandy Shores after a Mega-DisturbanceEstuaries and Coasts Large-scale events of destruction and mortality trigger abrupt changes in the structure of natural communities. Testing the magnitude of such effects and the resilience of the impacted communities is difficult, however, because large-scale disturbances are generally unpredictable and thus available data are rare... Ver PDF
2016Navedo J., Fernández G., Valdivia N., Drever M., Masero J.Identifying management actions to increase foraging opportunities for shorebirds at semi-intensive shrimp farmsJournal of Applied Ecology Land-use change is a driver of biodiversity loss (Newbold et al. 2015). The development and implementation of measures to increase the suitability of existing modified habitats for wildlife appears essential to conserve biodiversity... Ver PDF
2016Cruces E., Rautenberger R., Rojas-Lillo Y., Cubillos V., Arancibia-Miranda N., Ramírez-Kushel E., Gómez I.Physiological acclimation of Lessonia spicata to diurnal changing PAR and UV radiation: differential regulation among down- regulation of photochemistry, ROS scavenging activity and phlorotannins as major photoprotective mechanismsPhotosynth ResIntertidal macroalgae are constantly subjected to high variations in the quality and quantity of incident irradiance that can eventually generate detrimental effect on the photosynthetic apparatus. The success of these organisms to colonize the stressful... Ver PDF
2016Benítez S., Duarte C., López G., Manríquez P., Navarro J., Bonta C., Torres R., Quijón P.Ontogenetic variability in the feeding behavior of a marine amphipod in response to ocean acidificationMarine Pollution Bulletin Global stressors like ocean acidification (OA) are expected to influence the quality or palatibility of primary producers like algae... Ver PDF
2016Andrade‑Villagrán P., Chaparro O., Pardo L., Paredes‑Molina F., Thompson J.Embryo brooding and its effect on feeding in the bivalve Gaimardia bahamondei Osorio & Arnaud, 1984 Helgol Mar Res Gaimardia bahamondei is a small gonochoric bivalve which lives attached to subtidal algae. Females brood their embryos in the suprabranchial region of the pallial cavity, in close proximity to the gill filaments. We found no signifi‑ cant difference in clearance rate between males (non‑brooders) and females (brooders), regardless of the numbers of embryos in the brood, suggesting that the presence of embryos does not interfere with particle capture by the brooding female... Ver PDF
2016Navarro J., Labraña W., Chaparro O., Cisternas B., Ortiz A.Physiological Constraints in Juvenile Ostrea chilensis Fed the Toxic Dinoflagellate Alexandrium catenellaEstuaries and Coasts Frequent blooms of the dinoflagellate Alexandrium catenella in southern Chile encouraged undertaking the present
study which uses the oyster Ostrea chilensis as a model for evaluating the feeding, growth, lipid storage and mortality
responses to diets containing paralytic shellfish poisoning (PSP) produced by A. catenella. M. VerLeer PDF PDFLeer PDF
2016Tala F. Velásquez M., Mansilla A., Macaya E., Thiel M.Latitudinal and seasonal effects on short-term acclimation of floating kelp species from the South-East PacificJournal of Experimental Marine Biology and Ecology Floating seaweeds are important dispersal vehicles for many organisms in cold-temperate waters between latitudes 30° and 60°. Molecular studies suggested that long-distance rafting of seaweeds is more prevalent at the polar edges of their distribution but knowledge about their physiological status at high latitudes is limited... Ver PDF
2016Giesecke R., Vallejos T., Sánchez M., Teiguiel K.Plankton dynamics and zooplankton carcasses in a mid-latitude estuary and their contributions to the local particulate organic carbon poolContinental Shelf Research Estuaries are among the most productive aquatic ecosystems in coastal areas. Their productivity is linked to the formation of fronts generating mixing and retention of nutrients that can be used by autotrophs. Estuaries exhibit strong thermoclines and haloclines that may significantly affect zooplankton survival, while producing carcasses that could act as an alternative pathway of particulate organic carbon recycling... Ver PDF
2016Vargas-Chacoff L., Moneva F., Oyarzún R., Martínez D., Saavedra E., Ruiz-Jarabo I., Muñoz J., Bertrán C., Mancera J.
Metabolic responses to salinity changes in the subantarctic notothenioid teleost Eleginops maclovinusPolar BiolEleginops maclovinus is an endemic, subantarctic Notothenioidei species. This study examined the influence of different environmental salinities (5, 15, and 45 psu; and 32 psu as a control) on energy metabolism in E. maclovinus over a period of 14 days... Ver PDF
2016Navarro N., Huovinen P., Gómez I.Stress tolerance of Antarctic macroalgae in
the early life stages
Revista Chilena de Historia Natural Early life stages of macroalgae, especially from polar species, can be highly vulnerable to physical stressors, leading to important consequences for the fate of the whole population in scenarios of changing environmental variability... Ver PDF
2016Sepúlveda R., Valdivia N.Localised Effects of a Mega-Disturbance: Spatiotemporal Responses of Intertidal Sandy Shore Communities to the 2010 Chilean EarthquakePlos OneDetermining the effects of unpredictable disturbances on dynamic ecological systems is challenged by the paucity of appropriate temporal and spatial coverage of data. On 27 February 2010, an 8.8 Mw mega-earthquake and tsunami struck central Chile and caused coastal land-level changes, massive damage to coastal infrastructure, and widespread mortality of coastal organisms... Ver PDF
2016Piñones A., Fedorov A.Projected changes of Antarctic krill habitat by the end of the 21st centuryGeophys. Res. Lett.Climate change is rapidly shaping the living environment of the most abundant keystone species of the Antarctic marine food web, Antarctic krill. Projected future changes for the krill habitat include a sustained increase in ocean temperature and changes in sea ice and chlorophylla... Ver PDF
2016Vargas-Chacoff L., Muñoz J., Hawes C., Oyarzún R., Pontigo J., Saravia J., González M., Morera F., Labbé B., Bertrán C., Mardones O., Pino J., Wadsworth S.Atlantic salmon (Salmo salar) and Coho salmon (Oncorhynchus kisutch) display differential metabolic changes in response to infestation by the ectoparasite Caligus rogercresseyiAquacultureCaligus rogercresseyi sea lice negatively impact Chilean salmonid farming, but no complete characterization for the metabolic effects of Caligus infestation currently exists. Therefore, the aim of this study was to analyze the effects of C. rogercresseyi infestation on the metabolic responses of Salmo salar and Oncorhynchus kisutch... Ver PDF
2016Robertson G., Wienecke B., Suazo C., Lawton K., Arata J., Moreno C.Continued increase in the number of black-browed albatrosses (Thalassarche melanophris) at Diego Ramírez, Chile.Polar Biol Black-browed albatrosses (Thalassarche melanophris) are killed incidentally in commercial fishing operations. Aerial surveys in 2002 and 2011 revealed the number of black-browed albatrosses at the Diego Ramírez and Ildefonso islands, Chile, increased by 52 and 18 %, respectively... Ver PDF
2016Anabalón V., Morales C., González H., Menschel E., Schneider W., Hormazábal S., Valencia L., Escribano R.Micro-phytoplankton community structure in the coastal upwelling zone off Concepción (central Chile): Annual and inter-annual fluctuations in a highly dynamic environment Progress in OceanographyAn intensification of upwelling-favorable winds in recent decades has been detected in some of the main eastern boundary current systems, especially at higher latitudes, but the response of coastal phytoplankton communities in the Humboldt Current System (HCS) remains unknown. At higher latitudes in the HCS (35–40S), strong seasonality in wind-driven upwelling during spring-summer coincides with an annual increase in coastal chlorophyll-a and primary production, and a dominance of microphytoplankton... Ver PDF
2016Iriarte J., Muñoz J., Marcé R, Clément A., Lara C.
Influence of seasonal freshwater streamflow regimes on phytoplankton blooms in a Patagonian fjord New Zealand Journal of Marine and Freshwater ResearchVer PDF

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