Adapting to a Changing Ocean

How do key functional groups of plankton adapt to chemical changes in oceans and how does this affect biochemical cycles?
57
Publications
13
Researchers

The strong and dynamic horizontal chemical gradients in the southeastern Pacific (SEP), from ultra-oligotrophic waters to coastal upwelling, exhibit highly variable combinations of low O2 and pH/high pCO2 and include strong vertical changes in 02 concentrations, from saturation levels at the surface to undetectable levels in the nucleus of minimum oxygen zone (MOZ). For fieldwork, our Institute will conduct observations and experiments during expeditions. In situ estimations will be made of physiological/metabolic rates and communities, gene expression and particle flows (in particular associated with the carbon cycle, which in minimum oxygen zones is relatively unknown). As well, culture-independent genomic analysis of representative species will allow for putting to the test the associations between genomic and physiological variations. The composition and functioning of the communities will be analyzed and compared to the genomic population among the specific representatives of functional plankton groups.

Leaders

Osvaldo Ulloa, PhD.

Professor @ UDEC

Cristian Vargas, PhD.

Associate Professor @ UDEC

Peter von Dassow, PhD.

Associate Professor @ PUC

Researchers

Rubén Escribano, PhD.

Professor @ UDEC

Víctor Villagrán, Ms.

Assistant Professor @ UDEC

Pablo Rosenblatt, MFA.

Master in Fine Arts @ YORKU

Paulina Aguayo, PhD

Doctor in Environmental Sciences @ UDEC

Víctor Aguilera, PhD.

Researcher @ CEAZA

Juan Carlos Castilla, PhD

Full Professor @ PUC

Pamela Hidalgo, PhD.

Assistant Professor @ UDEC

Johana Medellín

Doctorate in Oceanography @ UDEC

Alvaro Muñoz, PhD.

Doctor @ IMO

Julio Sepúlveda, PhD

Assistant Professor @ INSTAAR
Meet our researchers

Publications

Greenhouse gases, nutrients and the carbonate system in the Reloncaví Fjord (Northern Chilean Patagonia): Implications on aquaculture of the mussel, Mytilus chilensis, during an episodic volcanic eruption

Science of The Total Environment | Volume 669, Pages 49-61

doi:10.1016/j.scitotenv.2019.03.037June, 2019

Yevenes, M.A.Lagos, N.A.Farías, L.Vargas, C.A.
A

Interplay between freshwater discharge and oceanic waters modulates phytoplankton size-structure in fjords and channel systems of the Chilean Patagonia

Progress in Oceanography | Volume 173, Pages 103-113

doi:10.1016/j.pocean.2019.02.012April, 2019

Cuevas, L.A.Tapia, F.J.Iriarte, J.L.González, H.E.Silva, N.Vargas, C.A.
A

Sampling and processing methods impact microbial community structure and potential activity in a seasonally anoxic fjord: Saanich Inlet, British Columbia

Frontiers in Marine Science | Volume 6, Article 132

doi:10.3389/fmars.2019.00132March, 2019

Torres-Beltrán, M.Mueller, A.Scofield, MPachiadaki, M.G.Taylor, C.Tyshchenko, K...Ulloa, O....Hallam, S.J.
A

Linking social preferences and ocean acidification impacts in mussel aquaculture

Scientific Reports | Volume 9, Article 4719

doi:10.1038/s41598-019-41104-5March, 2019

San Martín, V.A.Gelcich, S.Vásquez-Lavín, F.Ponce, R.D.Hernández, J.I.Lagos, N.Birchenough, S.N.R.Vargas, C.A.
A

Redox traits characterize the organization of global microbial communities

Proceedings of the National Academy of Sciences of the United States of America | Volume 116, Issue 9, Pages 3630-3635

doi:10.1073/pnas.1817554116February, 2019

Ramírez-Flandes, S.González, B.Ulloa, O.
AT

Upwelling modulation of functional traits of a dominant planktonic grazer during "warm-acid" El Niño 2015 in a year-round upwelling area of Humboldt Current.

PLOS One | Volume 14, Issue 1, Article e0209823

doi:10.1371/journal.pone.0209823January, 2019

Aguilera, V.M.Escribano, R.Vargas, C.A.González, M.T.
A

Temperature and pCO2 jointly affect the emergence and survival of cercariae from a snail host: implications for future parasitic infections in the Humboldt Current System

International Journal for Parasitology | Volume 49, Issue 1, Pages 49-61

doi:10.1016/j.ijpara.2018.08.006January, 2019

Leiva, N.V.Manríquez, P.HAguilera, V.M.González, M.T.
A

The energetic physiology of juvenile mussels, Mytilus chilensis (Hupe): The prevalent role of salinity under current and predicted pCO2 scenarios

Environmental Pollution | Volume 242, Pages 156-163

doi:10.1016/j.envpol.2018.06.053November, 2018

Duarte, C.Navarro, J.M.Quijón, P.A.Loncon, D.Torres, R.Manríquez, P.H.Lardies, M.A.Vargas, C.A.Lagos, N.A.
A

Major changes in diatom abundance, productivity, and net community metabolism in a windier and dryer coastal climate in the southern Humboldt Current

Progress in Oceanography | Volume 168, Pages 196-209

doi:10.1016/j.pocean.2018.10.001November, 2018

Jacob, B.Tapia, F.J.Quiñones, R.A.Montes, R.Sobarzo, M.Schneider, W.Daneri, G.Morales, C.E.Montero, P.González, H.E.
MA

Single cell genomic and transcriptomic evidence for the use of alternative nitrogen substrates by anammox bacteria

ISME Journal | Volume 12, Issue 11, Pages 2706-2722

doi:10.1038/s41396-018-0223-9November, 2018

Ganesh, S.Bertagnolli, A.Bristow, L.A.Padilla, C.C.Blackwood, N.Aldunate, M.Bourbonnais, A.Altabet, M.A.Malmstrom, R.R.Woyke, T.Ulloa, O.Konstantinidis, K.T.Thamdrup, B.Stewart, F.J.
A

Differential responses of Emiliania huxleyi (Haptophyta) strains to copper excess

Cryptogamie, Algologie | Volume 39, Issue 4, Pages 481-509

doi:10.7872/crya/v39.iss4.2018.481November, 2018

Mella-Flores, D.Machon, J.Contreras-Porcia, L.Mesa-Campbell, S.Von Dassow, P.
A

Transgenerational effects of pCO2-driven ocean acidification on adult mussels Mytilus chilensis modulate physiological response to multiple stressors in larvae

Frontiers in Physiology | Volume 9, Article 1349

doi:10.3389/fphys.2018.01349October, 2018

Díaz, R.Lardies, M.A.Tapia, F.J.Tarifeño, E.Vargas, C.A.
A

Low spring primary production and microplankton carbon biomass in Sub-Antarctic Patagonian channels and fjords (50-53ºS)

Arctic, Antarctic, and Alpine Research | Volume 50, Issue 01, Article e1525186

doi:10.1080/15230430.2018.1525186October, 2018

Iriarte, J.LCuevas, L.A.Cornejo, F.Silva, N.González, H.E.Castro, L.Montero, P.Vargas, C.A.Daneri, G.
A

Oxygen modulates bacterial community composition in the coastal upwelling waters off central Chile

Deep-Sea Research Part II: Topical Studies in Oceanography | Volume 156, Pages 68-79

doi:10.1016/j.dsr2.2018.02.001October, 2018

Aldunate, M.De la Iglesia, R.Bertagnolli, A.Ulloa, O.
A

Decrypting the sulfur cycle in oceanic oxygen minimum zones

ISME Journal | Volume 12, Issue 9, Pages 2322-2329

doi:10.1038/s41396-018-0149-2September, 2018

Crowe, S.A.Cox, R.P.Jones, C.A.Fowle, D.A.Santibañez-Bustos, J.F.Ulloa, O.Canfield, d.E.
A

Distinctive archaeal composition of an artisanal crystallizer pond and functional insights into salt-saturated hypersaline environment adaptation.

Frontiers in Microbiology | Volume 9, Article 1800

doi:10.3389/fmicb.2018.01800August, 2018

Plominsky, A.M.Henríquez, C.Delherbe, N.Podell, S.Ramírez-Flandes, S.Ugalde, J.A.Santibañez, J.F.Van Den Engh, G.JHanselmann, K.Ulloa, O.De la Iglesia, R.Allen, E.E.Trefault, N.
A

Metabolic potential and in situ transcriptomic profiles of previously uncharacterized key microbial groups involved in coupled carbon, nitrogen, and sulfur cycling in anoxic marine zones

Environmental Microbiology | Volume 20, Issue 8, Pages 2727-2742

doi:10.1111/1462-2920.14109August, 2018

Plominsky, A.M.Trefault, N.Podell, S.Blanton, J. M.De la Iglesia, R.Allen, E. E.Von Dassow, P.Ulloa, O.
A

Strength in numbers: collaborative science for new experimental model systems.

PLOS Biology | Volume 16, Issue 7, Article e2006333

doi:10.1371/journal.pbio.2006333July, 2018

Waller, R.FCleves, P.A.Rubio-Brotons, M.Woods, A.Bender, S.J.Edgcomb, V.Gann, E.R.Jones, A.C.Teytelman, L.Von Dassow, P.Wilhelm, S.W.Collier, J.L.
A

Differences in the sensitivity to Cu and ligand production of coastal vs offshore strains of Emiliania huxleyi

Science of The Total Environment | Volume 625, Pages 1673-1680

doi:10.1016/j.scitotenv.2017.10.050June, 2018

Echeveste, P.Croot, P.Von Dassow, P.
A

Spatial variability of zooplankton community structure in Colombian Caribbean waters during two seasons

Revista de Biología Tropical | Volume 66, Issue 2, Pages 688-708

doi:10.15517/rbt.v66i2.33401June, 2018

Medellín-Mora, JohanaEscribano, R.Schneider, W.Correa-Ramírez, M.
A

Local habitat influences on feeding and respiration of the intertidal mussels Perumytilus purpuratus exposed to increased pCO2 levels

Estuaries and Coasts | Volume 41, Issue 4, Pages 1118-1129

doi:10.1007/s12237-017-0333-zJune, 2018

Saavedra, L.M. Parra, D.San Martin, V.Lagos, N.A. Vargas, C.A.
A

Overcalcified forms of the coccolithophore Emiliania huxleyi in high CO2 waters are not pre-adapted to ocean acidification

Biogeosciences | Volume 15, Pages 1515-1534

doi:10.5194/bg-15-1515-2018March, 2018

Von Dassow, P.Díaz-Rosas, F.Bendif, E.M.Gaitán-Espitia, J.Mella-Flores, D.Rokkita, S.John, U.Torres, R.
A

Influence of glacier melting and river discharges on the nutrient distribution and DIC recycling in the Southern Chilean Patagonia

Journal of Geophysical Research: Biogeosciences | Volume 123, Issue 1, Pages 256-270

doi:10.1002/2017JG003907January, 2018

Vargas, C.A.Cuevas, L.A.Silva, N.González, H.E.De Pol-Holz, R.Narváez, D.A.
A

Hypoxia effects on females and early stages of Calanus chilensis in the Humboldt Current ecosystem (23°S)

Journal of Experimental Marine Biology and Ecology | Volume 498, Pages 61-71

doi:10.1016/j.jembe.2017.09.018January, 2018

Ruz, P.M.Hidalgo, P.Escribano, R.Keister, J.E.Yebra, L.Franco-Cisterna, B.
A

Hydrography shapes community composition and diversity of amoA containing Thaumarcheota in the coastal waters off central Chile

Environmental Microbiology Reports | Volume 9, Issue 6, Pages 717-728

doi:10.1111/1758-2229.12579December, 2017

Bertagnolli, A.Ulloa, O.
A

Ocean acidification and pathogen exposure modulate the immune response of the edible mussel Mytilus chilensis

Fish and Shellfish Immunology | Volume 70, Pages 149-155

doi:10.1016/j.fsi.2017.08.047November, 2017

Castillo, N.Saavedra, L.M.Vargas, C.A.Gallardo-Escárate, C.Détrée, C.
A

Physiological and histopathological impacts of increased carbon dioxide and temperature on the scallops Argopecten purpuratus cultured under upwelling influences in northen Chile

Aquaculture | Volume 479, Pages 455-466

doi:10.1016/j.aquaculture.2017.06.008October, 2017

Lardies, M.A.Benitez, S.Osores, S.Vargas, C.A.Duarte, C.Lohrmann, K.B.Lagos, N.
A

Cryptic oxygen cycling in anoxic marine zones

Proceedings of the National Academy of Sciences of the United States of America | Volume 114, Issue 31, Pages 8319-8324

doi:10.1073/pnas.1619844114August, 2017

Garcia-Robledo, E.Padilla, C.C.Aldunate, M.Stewart, F.J.Ulloa, O.Paulmier, A.Gregori, G.Revsbech, N.P.
A

Diversity and transcriptional levels of RuBisCO form II of sulfur-oxidizing γ-proteobacteria in coastal-upwelling waters with seasonal anoxia

Frontiers in Marine Science | Volume 4, Issue 213, Pages 1-12

doi:10.3389/fmars.2017.00213July, 2017

Léniz, B.Murillo, A.A.Ramírez-Flandes, S.Ulloa, O.
A

Does environmental heterogeneity explain temporal β diversity of small eukaryotic phytoplankton? Example from a tropical eutrophic coastal lagoon

Journal of Plankton Research | Volume 39, Issue 4, Pages 698-714

doi:10.1093/plankt/fbx026July, 2017

Alves-de-Souza, C.Benevides, T.S.Santos, J.B.O.Von Dassow, P.Guillou, L.Menezes, M.
A

Vertical distribution of copepod eggs in the oxygen minimum zone off Mejillones Bay (23°S) in the Humboldt Current System

Marine Ecology Progress Series | Volume 571, Pages 83-96

doi:10.3354/meps12117May, 2017

Ruz, P.M.Hidalgo, P.Riquelme-Bugueño, R.Franco-Cisterna, B.Cornejo, M.
A

A review of protist grazing below the photic zone emphasizing studies of oxygen-depleted water columns and recent applications of in situ approaches

Frontiers in Marine Science | Volume 4, Article 105

doi:10.3389/fmars.2017.00105April, 2017

Medina, L.E.Taylor, C.D.Pachiadaki, M.G.Henríquez, C.Ulloa, O.Edgcomb, V.P.
A

Species-specific responses to ocean acidification should account for local adaptation and adaptive plasticity

Nature Ecology & Evolution | Volume 1, Article 0084

doi:10.1038/s41559-017-0084March, 2017

Vargas, C.A.Lagos, N.A.Lardies, M.A.Duarte, C.Manríquez, P.H.Aguilera, V.M.Broitman, B.Widdicombe, S.Dupont, S.
A

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 Kingdom | Volume 97, Issue 2, Pages 225-233

doi:10.1017/S0025315416001570March, 2017

Jacob, B.Von Dassow, P.Salisbury, J.Navarro, J.Vargas, C.A.
A

First measurements of euphausiid growth rates in the northern Humboldt Current (23ºS)

Revista de Biología Marina y Oceanografía | Volume 51, Issue 2, Pages 435-440

doi:10.4067/S0718-19572016000200020August, 2016

Riquelme-Bugueño, R.Gómez-Gutiérrez, J.Escribano, R.Ruz, P.M.Hidalgo, P.Schneider, W.
A

Seasonal dynamics of zooplankton in a northern Chile bay exposed to upwelling conditions

Revista de Biología Marina y Oceanografía | Volume 51, Issue 2, Pages 273-291

doi:10.4067/S0718-19572016000200006August, 2016

Torreblanca, M.L.Pérez-Santos, I.San Martin, B.Varas, E.Zilleruelo, R.Riquelme-Bugueño, R.Palma, A.T.
A

P- and N-starvation trigger the same cellular responses to promote senescence in eukaryotic phytoplankton

Frontiers in Marine Science | Volume 3, Article 109

doi:10.3389/fmars.2016.00109June, 2016

Rokitta, S.D.Von Dassow, P.Rost, B.John, U.
A

Recent reticulate evolution in the ecologically dominant lineage of coccolithophores

Frontiers in Microbiology | Volume 7, Page 784

doi:10.3389/fmicb.2016.00784May, 2016

Bendif, E. M.Probert, I.Díaz-Rosas, F.Thomas, D.van den Engh, G.Young, J.Von Dassow, P.
A

Identification of the meiotic toolkit in diatoms and exploration of meiosis-specific SPO11 and RAD51 homologs in the sexual species Pseudo-nitzschia multistriata and Seminavis robusta

BMC Genomics | Volume 16, Page 930

doi:10.1186/s12864-015-1983-5November, 2015

Patil, S.Moeys, S.Von Dassow, P.Huysman, M.J.J. Mapleson, D.De Veylder, L.Sanges, R.Vyverman, W.Montresor, M.Ferrante, M.I.
A

Electrophoretic protein profiles of mid-sized copepod Calanoides patagoniensis steadily fed bloom-forming diatoms

Latin American Journal of Aquatic Research | Volume 43, Issue 4, Pages 798-806

doi:10.3856/vol43-issue4-fulltext-20September, 2015

Aguilera, V.M.Escribano, R.Martínez-Oyanedel, J.
A

CO2-driven ocean acidification disrupts the filter feeding behavior in chilean gastropod and bivalve species from different geographic localities

Estuaries and Coasts | Volume 38, Issue 4, Pages 1163-1177

doi:10.1007/s12237-014-9873-7July, 2015

Vargas, C.A.Aguilera, V.M.San Martín, V.Manríquez, P.H.Navarro, J.M.Duarte, C.Torres, R.Lardies, M.A.Lagos, N.A.
A

Morphological and phylogenetic characterization of new Gephyrocapsa isolates suggests introgressive hybridization in the Emiliania/Gephyrocapsa complex (Haptophyta)

Protist | Volume 166, Issue 3, Pages 323-336

doi:10.1016/j.protis.2015.05.003May, 2015

Bendif, E.M.Probert, I.Young, J.R.Von Dassow, P.
A

Adaptive variability to low-pH river discharges in Acartia tonsa and stress responses to high PCO2 conditions

Marine Ecology-An Evolutionary Perspective | Volume 37, Issue 1, Pages 215-226

doi:10.1111/maec.12282April, 2015

Aguilera, V.M.Vargas, C.A.Lardies, A.M.Poupin, M.
A

Influence of climate and land use in carbon biogeochemistry in lower reaches of rivers in central southern Chile: Implications for the carbonate system in river-influenced rocky shore environments

Journal of Geophysical Research: Biogeosciences | Volume 120, Issue 4, Pages 673-692

doi:10.1002/2014JG002699April, 2015

Pérez, C.A.DeGrandpre, M.D.Lagos, N.A.Saldías, G.S.Karin-Cascales, E.Vargas, C.A.
A

Genomic potential for nitrogen assimilation in uncultivated members of Prochlorococcus from an anoxic marine zone

ISME Journal | Volume 9, Pages 1264-1267

doi:10.1038/ismej.2015.21April, 2015

Astorga-Eló, M.Ramírez-Flandes, S.DeLong, E.F.Ulloa, O.
A

Structure of denitrifying communities reducing N2O at suboxic waters off northern Chile and Perú

Revista de Biología Marina y Oceanografía | Volume 50, Issue 1, Pages 95-110

doi:10.4067/S0718-19572015000100008April, 2015

Castro-González, M.Ulloa, O.Farías, L.
A

Life-cycle modification in open oceans accounts for genome variability in a cosmopolitan phytoplankton

ISME Journal | Volume 9, Pages 1365-1377

doi:10.1038/ismej.2014.221April, 2015

Von Dassow, P.Johns, U.Ogata, H.Probert, I.Mahdi Bendif, E.Kegel, U.J.Audic, S.Da Silva, C.Claverie, J.M.Doney, S.Glover, D.M.Herrera, Y.Lescot, M.Garet-Delmas, M.L.De Vargas, C.
MA

Egg production and hatching success of Calanus chilensis and Acartia tonsa in the northern Chile upwelling zone (23°S), Humboldt Current System

Journal of Marine Systems | Volume 148, Pages 200-212

doi:10.1016/j.jmarsys.2015.03.007March, 2015

Ruz, P.M.Hidalgo, P.Yañez, S.Escribano, R.Keister, J.
MA

Intraspecific variability in the response of the edible mussel Mytilus chilensis (Hupe) to ocean acidification

Estuaries and Coasts | Volume 38, Issue 2, Pages 590-598

doi:10.1007/s12237-014-9845-yMarch, 2015

Duarte, C.Navarro, J.M.Acuña, K.Torres, R.Lardies, M.A.Vargas, C.A.Lagos, A.N.Aguilera, V.M.
A

Emiliania huxleyi endures N-limitation with an efficient metabolic budgeting and effective ATP synthesis

BMC Genomics | Volume 15, Article 1051

doi:10.1186/1471-2164-15-1051December, 2014

Rokitt, S. D.Von Dassow, P.Rost, B.John, U.
A

Hypoxia in Chilean Patagonian Fjords

Progress in Oceanography | Volume 129, Pages 62-74

doi:10.1016/j.pocean.2014.05.016December, 2014

Silva, N.Vargas, C.A.
A

The first report of a microdiverse anammox bacteria community in waters of Colombian Pacific, a transition area between prominent oxygen minimum zones of the eastern tropical Pacific

Environmental Microbiology Reports | Volume 6, Pages 595-604

doi:10.1111/1758-2229.12165November, 2014

Castro-González, M.Molina, V.Rodríguez-Rubio, E.Ulloa, O.
A

Biological oceanography, biogeochemical cycles, and pelagic ecosystem functioning of the east-central South Pacific Gyre: Focus on Easter Island and Salas-y-Gómez

Latin American Journal of Aquatic Research | Volume 42, Pages 703-742

doi:10.3856/vol42-issue4-fulltext-4October, 2014

Von Dassow, P.Collado-Fabbri, S.
A

Alteration of sexual reproduction and genetic diversity in the kelp species Laminaria digitata at the southern limit of its range

PLOS One | Volume 9, Issue 7, Pages 1-11

doi:10.1371/journal.pone.0102518July, 2014

Oppliger, LVon Dassow, P.Bouchemousse, SValero, M.Correa, J.Auger, P.Destombe, C.
A

Ocean acidification affects predator avoidance behavior but not prey detection in the early ontogeny of a keystone species

Marine Ecology Progress Series | Volume 502, Pages 157-167

doi:10.3354/meps10703April, 2014

Manríquez, P.H.Jara, M.E.Mardones, M.L.Torres, R.Navarro, J.M.Lardies, M.A.Vargas, C.A.Duarte, C.Lagos, N.A.
A

Temperature effects on development and reproduction of copepods in the Humboldt Current: the advantage of rapid growth

Journal of Plankton Research | Volume 36, Issue 1, Pages 104-116

doi:10.1093/plankt/fbt095January, 2014

Escribano, R.Hidalgo, P.Valdés, V.Frederick, L.
A

Combined effects of temperature and ocean acidification on the juvenile individuals of the mussel Mytilus chilensis

Journal of Sea Research | Volume 85, Pages 308-314

doi:10.1016/j.seares.2013.06.002January, 2014

Duarte, C.Navarro, J.M.Acuña, K.Torres, R.Manríquez, P.H.Lardies, M.A.Vargas, C.A.Lagos, N.A.Aguilera, V.M.
A

Other research lines

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?

A Variable and Changing Ocean

Social networks

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