A Variable and Changing Ocean

44
Publicaciones

Dominant environmental drivers, such as naturally high pCO2/low pH conditions partially coupled to naturally low O2 or anoxic waters, must be crucial in shaping ecosystem and biogeochemical functioning in the ESP. Additionally, as the global ocean is both acidifying (due to absorption of anthropogenic CO2) and losing O2 (due to warming and increased stratification), the ESP also provides one of the most important natural laboratories for predicting future ocean function in the Anthropocene by understanding how biological systems
adapt to and function under these conditions. The first 5 years period showed us the need to more effectively integrate the physical and chemical oceanographic understanding of the drivers of ocean variability, at the (sub)mesoscale (former Line 1) and on inter-annual to longer time scales (former line 2), with investigation of the consequences and responses at biogeochemical, ecological, and even organismal levels (former line 3). While the physical drivers are relatively well understood, the frontier of investigation is to understand the consequences for chemical, biogeochemical, and biological function, including potential adaptive responses. 
Theme I will be organized around three grand questions:
A: How well do biogeochemical flows, community composition, and even population structure of key species correlate with physical oceanographic drivers? It is not yet clear at what scale physical variability in the ocean, either due to mesoscale and sub-mesoscale structures (eddies, fronts, and jets) or due to inter-annual and longer-scale variability, impact carbon and energy flow and community composition, and it is completely unknown at what level physical processes structure populations, gene flow, and adaptations at
the organism level. The output goal is to determine the scales at which biogeochemical function, plankton community composition, and population structure of key zooplankton and phytoplankton are correlated with the physical structure of the ocean. 
B: How does biogeochemical function differ among norm-oxic, OMZ, and AMZ marine systems?
Nearly a decade ago it was proposed that acidification expands OMZs by affecting their biogeochemical function, but this remains unproven. Meanwhile, it becomes increasingly clear that AMZs may function differently than OMZs: In OMZs, bacterial metabolism is still largely aerobic, while in AMZs, truly anaerobic metabolisms become prominent, and effects of changes in metal cycling in anoxic waters might profoundly affect microorganism biochemistry and thus C and N flows. The output goal is to compare biogeochemical function in norm-oxic, OMZ, and AMZ waters.
C: What is the resilience of key communities and organisms to a changing ocean, and can that be predicted by their origin?
Continued focus will be on testing both natural plankton communities (phyto- and zooplankton) and cultured phytoplankton from different origins, comparing their resilience to stressors with the ranges and natural variability (i.e. hours, weeks, months) of such stressors
experienced in their local habitat. We will focus on exploring how environmental hardening upon low pH/high pCO2 conditions can provide intra-generational acclimatization upon Ocean Acidification scenarios, and how it may vary depending on generation time of marine organisms (e.g. phyto vs. zooplankton). Global scale “Common-garden” experiments with cosmopolitan species (inter-hemisphere studies) will allow to understand how natural variability across the ocean can determine the resilience of marine communities upon ocean changing conditions not only at regional, but also for the world ocean scale.

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Publicaciones

A comparison of marine Fe and Mn cycling: U.S. GEOTRACES GN01 Western Arctic case study

Geochimica et Cosmochimica Acta | Volumen 288, Páginas 138-160

doi:10.1016/j.gca.2020.08.006Noviembre de 2020

Jensen, L. TMorton, P.Twining, B.SHeller, M.Hatta, M........, Fitzsimmons, J.N
AT

Spatiotemporal Distribution of Key Pelagic Microbes in a Seasonal Oxygen-Deficient Coastal Upwelling System of the Eastern South Pacific Ocean

Frontiers in Marine Science | Volumen 7, Páginas 1-17

doi:10.3389/fmars.2020.561597Septiembre de 2020

Molina, V.Belmar, L.Levipan, H.ARamírez-Flandes, S.Anguita, C.Galán, A.Montes, I.Ulloa, O.
TA

Tidally Forced Saltwater Intrusions might Impact the Quality of Drinking Water, the Valdivia River (40◦ S), Chile Estuary Case

Water | Páginas 1-18

doi:10.3390/w12092387Agosto de 2020

Garcés-Vargas, J.Schneider, W.Pinochet, A.Piñones, A.Olguín, F.Briera, D.Wan, Y.
TA

Revealing enigmatic mucus structures in the deep sea using DeepPIV

Nature research journal | Páginas 1-5

doi:10.1038/s41586-020-2345-2Junio de 2020

Katija, K.Troni, G.Daniels, J.Lance, K.Sherlock, R. E.Sherman, A. D.Robison, B. H.
AT

Autotrophic carbon fixation pathways along the redox gradient in oxygen‐depleted oceanic waters

Environmental Microbiology Reports | Volumen 12, Número 3, Páginas 334-341

doi:10.1111/1758-2229.12837Junio de 2020

Ruiz, P.Ramírez-Flandes, S.Rodríguez, E.Ulloa, O.
A

The role of the Magellan Strait on the southwest South Atlantic shelf

Estuarine, Coastal and Shelf Science | Volumen 237, Artículo 106661

doi:10.1016/j.ecss.2020.106661Mayo de 2020

Brun, A.A.Ramírez, N.Pizarro, O.Piola, A.R.
AT

Response of phytoplankton assemblages from naturally acidic coastal ecosystems to elevated pCO2

Frontiers in Marine Science | Volumen 7, Artículo 323

doi:10.3389/fmars.2020.00323Mayo de 2020

Osma, N.Latorre-Melín, L.Jacob, B.Contreras, P.Y.Von Dassow, P.Vargas, C.A.
A

The Influence of Diapycnal Nutrient Fluxes on Phytoplankton Size Distribution in an Area of Intense Mesoscale and Submesoscale Activity off Concepción, Chile

Journal of Geophysical Research: Oceans | Volumen 125, Páginas 1-20

doi:10.1029/2019JC015539Mayo de 2020

Corredor-Acosta, A.Morales, C.E.Anabalón, V.Valencia, L.Hormazábal, S.Rodríguez-Santana, A.
TA

Greenhouse gas cycling by the plastisphere: The sleeper issue of plastic pollution

CHEMOSPHERE | Volumen 246, Artículo 125709

doi:10.1016/j.chemosphere.2019.125709Mayo de 2020

Cornejo, M.Molina, V.Pavez, J.Silva, N.
TA

Loss of filamentous multicellularity in Cyanobacteria - the extremophile Gloeocapsopsis sp. UTEX B3054 retained multicellular features at the genomic and behavioral level

Journal of Bacteriology

doi:10.1128/JB.00514-19Abril de 2020

Urrejola, C.Von Dassow, P.van den Engh, G.Salas, L.Mullineaux, C.W.Vicuña, R.Sanchez-Baracaldo, P.
A

Genetic tool development in marine protists: Emerging model organisms for experimental cell biology

Nature Methods

doi:10.1101/718239Abril de 2020

Faktorová, D.Nisbet, R.E.R.Fernández-Robledo, J.A.Casacuberta, E.Sudek, L.Allen, A.E...., Von Dassow, P...., Lukes, J.
A

Monitoring the occurrence of microplastic ingestion in Otariids along the Peruvian and Chilean coasts

Marine Pollution Bulletin | Volumen 153, Artículo 110966

doi:10.1016/j.marpolbul.2020.110966Abril de 2020

Pérez-Venegas, D.J.Toro-Valdivieso, C.Ayala, F.Brito, B.Iturra, L.Arriagada, M....Urbina, M....Galbán-Malagón, C.
A

pH and other upwelling hydrographic drivers in regulating copepod reproduction during the 2015 El Niño event: A follow-up study

Estuarine, Coastal and Shelf Science | Volumen 234, Artículo 106640

doi:10.1016/j.ecss.2020.106640Marzo de 2020

Aguilera, V.M.
TA

Universal Loop assembly (uLoop): open, efficient, and species-agnostic DNA fabrication

Synthetic Biology | Volumen 5, Número 1, Artículo ysaa001

doi:10.1101/744854Febrero de 2020

Pollack, B.Matute, TNunez, I.Cerda, A.Lopez, C.Vargas, V...., Von Dassow, P...., Federici, F.
A

Marine invertebrate larvae love plastics: Habitat selection and settlement on artificial substrates

Environmental Pollution

doi:10.1016/j.envpol.2019.113571Febrero de 2020

Pinochet, J.Urbina, M.Lagos, M. E
AT

Microplastic ingestion cause intestinal lesions in the intertidal fish Girella laevifrons

Marine Pollution Bulletin | Volumen 151, Artículo 110795

doi:10.1016/j.marpolbul.2019.110795Febrero de 2020

Ahrendt, C.Pérez-Venegas, D. JUrbina, M.Gonzalez, C.Echeveste, P.Aldana, M.Pulgar, J.Galbán-Malagón, C.
AT

Glacial Lake Outburst Flood (GLOF) Events and Water Response in A Patagonian Fjord

Water | Volumen 12, Páginas 1-21

doi:10.3390/w12010248Enero de 2020

Ross, L.Pérez-Santos, I.Parady, B.Castro, L.Valle-Levinson, A.Schneider, W.
AT

Antagonistic interplay between pH and food resources afects copepod traits and performance in a yearround upwelling system

Scientific Reports

doi:10.1038/s41598-019-56621-6Enero de 2020

Vargas, C.A.Aguilera, V.M.G. Dam, H.
A

Editorial: El Niño-Southern Oscillation on a Changing Planet: Consequences for Coastal Ecosystems

Frontiers in Marine Science | Volumen 6, Páginas 1-2

doi:10.3389/fmars.2019.00774/fullDiciembre de 2019

Riascos, J. MGutiérrez, D.Escribano, R.Thtje, S.
AT

Seasonal Variability of the Southern Tip of the Oxygen Minimum Zone in the Eastern South Pacific (30°‐38°S): A Modeling Study

Journal of Geophysical Research: Oceans | Volumen 124, Páginas 8574-8604

doi:10.1029/2019JC015201Diciembre de 2019

Pizarro-Koch, M.Pizarro, O.Dewite, B.Montes, I.Ramos, M.Paulmier, A.Garcon, V.
AT

Sublethal exposure to copper supresses the ability to acclimate to hypoxia in a model fish species

Environmental Pollution

doi:10.1016/j.aquatox.2019.105325Diciembre de 2019

Fitzgerald, J. AUrbina, M.Rogers, N. JBury, N. RKatsiadaki, L.Wilson, R. WSantos, E. M
AT

Relative importance of predatory versus non-predatory mortality for dominant copepod species in the northern Chilean (23°S) Humboldt Current System

Marine Ecology Progress Series | Volumen 630, Páginas 13-23

doi:10.3354/meps13130Noviembre de 2019

Yañez, S.Hidalgo, P.Tang, K.W
AT

Community structured production of zooplankton in the eastern boundary upwelling system off central/southern Chile (2003–2012)

ICES Journal of Marine Science | Páginas 1-17

doi:10.1093/icesjms/fsz193Noviembre de 2019

Medellín-Mora, JohanaAtkinson, A.Escribano, R.
AT

Towards integrating evolution, metabolism, and climate change studies of marine ecosystems

Trends in Ecology & Evolution | Volumen 34, Artículo 11

doi:10.1016/j.tree.2019.07.003Noviembre de 2019

Baltar, F.Bayer, B.Bednarsek, N.Deppeter, S.Escribano, R.González, C.E....Herndl, G.J
TA

Two new species of Acanthocotyle Monticelli, 1888 (Monogenea: Acanthocotylidae), parasites of two deep-sea skates (Elasmobranchii: Rajiformes) in the South-East Pacific

Parasites & Vectors | Volumen 12, Artículo 512

doi:10.1186/s13071-019-3756-5Octubre de 2019

Ñacari, L.Sepúlveda, F.AEscribano, R.Oliva, M.E.
AT

Nitrogen assimilation in picocyanobacteria inhabiting the oxygen‐deficient waters of the eastern tropical North and South Pacific

Limnology and Oceanography | Páginas 1-17

doi:10.1002/lno.11315Septiembre de 2019

Aldunate, M.Henríquez, C.Ji, Q.Lueders-Dumont, J.Mulholland, M.R.B. Ward, B.Von Dassow, P.Ulloa, O.
AT

Synoptic-scale variability of surface winds and ocean response to atmospheric forcing in the eastern austral Pacific Ocean, Ocean

Ocean Science | Volumen 15, Páginas 1247-1266

doi:10.5194/os-15-1247-2019Septiembre de 2019

Pérez-Santos, I.Seguel, R.Schneider, W.Linford, P.Donoso, D.Navarro, E.Amaya-Cárcamo, C.Pinilla, E.Daneri, G.
AT

Impacts of reduced inorganic N:P ratio on three distinct plankton communities in the Humboldt upwelling system

Marine Biology | Volumen 166, Páginas 1-17

doi:10.1007/s00227-019-3561-xSeptiembre de 2019

Spilling, K.Camarena-Gómez, M-TLipsewers, T.Martínez-Varela, A.Díaz-Rosas, F.Von Dassow, P....
AT

Global perspectives on observing ocean boundary current systems

Frontiers in Marine Science | Volumen 6, Artículo 423

doi:10.3389/fmars.2019.00423Agosto de 2019

Todd, R.EChavez, F.PClayton, S.Cravatte, S. Goes, M....Escribano, R....Zhang, L.
AT

The impact of spring-neap tidal-stream cycles in tidal energy assessments in the Chilean Inland Sea

Renewable Energy | Volumen 139, Páginas 496-506

doi:10.1016/j.renene.2019.02.092Agosto de 2019

Artal, O.Pizarro, O.H.Sepúlveda, H.
AT

The glass half-empty: climate change drives lower freshwater input in the coastal system of the Chilean Northern Patagonia

Climatic Change | Volumen 155, Páginas 417-435

doi:10.1007/s10584-019-02495-6Agosto de 2019

Aguayo, R.León-Muñoz, J.Vargas-Baecheler, J.Montecinos, A.Garreaud, R.Urbina, M....
AT

Subsurface Mesoscale Eddy Generation in the Ocean off Central Chile

Journal of Geophysical Research: Oceans | Volumen 124, Páginas 5700-5722

doi:10.1029/2018JC014723Agosto de 2019

Contreras, M.Pizarro, O.Dewitte, B.H. Sepúlveda, H. Renault, L.
AT

Monitoring Microbial Communities in the Marine Environment

Cytometry Part A | Volumen 95, Páginas 717-721

doi:10.1002/cyto.a.23763Julio de 2019

van den Engh, G.Ulloa, O.Karl, D.M
AT

Understanding Sea Level Change in the South Pacific During the Late 20th Century and Early 21st Century

Journal of Geophysical Research: Oceans | Volumen 124, Páginas 3849-3858

doi:10.1029/2018JC014828Junio de 2019

Albrecht, F.Pizarro, O.Montecinos, A.Zhang, X.
AT

Identification assisted by molecular markers of larval parasites in two limpet species (Patellogastropoda: Nacella) inhabiting Antarctic and Magellan coastal systems

Polar Biology | Volumen 42, Número 6, Páginas 1175-1182

doi:10.1007/s00300-019-02511-6Junio de 2019

Flores, K.López, Z.Levicoy, D.Muñoz-Ramírez, C.PGonzález-Wevar, C.Oliva, M.E.Cárdenas, L.
TA

Dominant scales of subtidal variability in coastal hydrography of the Northern Chilean Patagonia

Journal of Marine Systems | Volumen 193, Páginas 59-73

doi:10.1016/j.jmarsys.2018.12.008Mayo de 2019

Narváez, D.AVargas, C.A.Cuevas, L. AGarcía-Loyola, S. ALara, C.Segura, C.Tapia, F. JBroitman, B. R
AT

Decreased Metabolic Rate in the Mole Crabs, Emerita analoga, Infected with the Acanthocephalan Profilicollis altmani.

Journal of Parasitology | Volumen 105, Páginas 19-24

doi:10.1645/18-29Enero de 2019

Figueroa, L. B Urbina, M.Riedemann, A.Rodriguez, S. MPaschke, K.
AT

Heavy metals’ content (Al, Fe, Cu, Mn, Pb and Hg) in sediments of Laguna Verde Bay Valparaíso, Chile

Latin American Journal of Aquatic Research | Volumen 46, Páginas 1116-1121

doi:10.3856/vol46-issue5-fulltext-24.Diciembre de 2018

Pavez, J.Silva, N.Cornejo, M.Rivera, C.
AT

Implementing ecosystem-based fisheries management: Lessons from Chile's experience.

Marine Policy | Volumen 97, Páginas 82-90

doi:10.1016/j.marpol.2018.08.037Noviembre de 2018

Porobic, J.Fulton, E.A.Frusher, S.Parada, C.Haward, M.Ernst, B.Stram, D.
AT

Seasonality of the N2O cycle of the Biobío River during the megadrought

JOURNAL OF LIMNOLOGY | Volumen 78, Páginas 14-26

doi:10.4081/jlimnol.2018.1767Septiembre de 2018

Cornejo, M.Figueroa, R. Parra, O.
TA

Beyond chlorophyll fluorescence: The time is right to expand biological measurements in ocean observing programs

Limnology and Oceanography | Volumen 27, Número 3, Páginas 89-90

doi:10.1002/lob.10243Agosto de 2018

Boss, E.Waite, A.Muller-Karger, F.Yamazaki, H.Wanninkhof, R.Uitz, J....Cornejo, M....Acinas, SG
AT

Distribution of greenhouse gases in hyper-arid and arid areas of northern Chile and the contribution of the high altitude wetland microbiome (Salar de Huasco, Chile) Antonie Van Leeuwenhoek

ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICR | Volumen 1432, Páginas 111-1421

doi:10.1007/s10482-018-1078-9Agosto de 2018

Molina, V.Eissier, Y.Cornejo, M.Galand, P.EDorador, C.Hengst, M.Fernandez, C.Francois, J.P
AT

Copepod secondary production in the sea: Errors due to uneven molting and growth patterns and incidence of carcasses

Progress in Oceanography | Volumen 165, Páginas 257-267

doi:10.1016/j.pocean.2018.06.008Julio de 2018

Yañez, S.Hidalgo, P.Ruz, P.M.Tang, K.W.
AT

The activity of nitrifying microorganisms in a high-altitude Andean wetland

FEMS MICROBIOLOGY ECOLOGY | Volumen 94, Artículo fiy062

doi:10.1093/femsec/fiy062Junio de 2018

Molina, V.Dorador, C.Fernández, C.Bristow, L.Eissler, Y.Hengst, M....Cornejo, M.
AT

Otras líneas de investigación

The Deep Ocean

What are the physical and biogeochemical characteristics of deep and ultra-deep waters of the eastern South Pacific, and which of those determine the diversity and functional structure of their pelagic communities?
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