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?
27
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

Researchers

Meet our researchers

Publications

Local Habitat Influences on Feeding and Respiration of the Intertidal Mussels Perumytilus purpuratus Exposed to Increased pCO2 Levels

Estuaries and Coasts | Pages 1559-2723

doi:10.1007/s12237-017-0333-zFriday, November 10, 2017

Saavedra, Luisa M. Parra, Diego San Martin, Valeska Lagos, Nelson A. Vargas, C.A.

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

Biogeosciences | Issue 2017, Page 303

doi:10.5194/bg-2017-303Wednesday, September 6, 2017

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

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.2017.08.047Friday, September 1, 2017

Castillo, N.Saavedra, L.Vargas, C.A.Gallardo, C.Détrée, C.

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/fbx026Saturday, July 1, 2017

Alves-de-Souza, C.Benavides, T.Santos, J.Von Dassow, P.Guillou, L.Menezes, M.

Striations and preferred eddy tracks triggered by topographic steering of the background flow in the eastern South Pacific

Journal of Geophysical Research: Oceans | Volume 122, Issue 4, Pages 2847-2870

doi:10.1002/2016JC012348Friday, May 26, 2017

Bel Madani, A.Concha, EmilioDonoso, DavidChaigneau, AlexisColas, FrançoisMaximenko, NikolaiDi Lorenzo, Emanuele

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

Nature Ecology & Evolution | Volume 1, Pages 1-7

doi:10.1038/s41559-017-0084Monday, March 13, 2017

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

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 | Pages 1-9

doi:10.1017/S0025315416001570Monday, November 21, 2016

Jacob, B.Von Dassow, P.Salisbury, J.Navarro, J.Vargas, C.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/S0718-19572016000200020Monday, August 1, 2016

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/S0718-19572016000200006Monday, August 1, 2016

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

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

Frontiers in Marine Science | Volume 3, Issue 109, Pages 1-13

doi:10.3389/fmars.2016.00109Thursday, June 30, 2016

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

Recent reticulate evolution in the ecologically dominant lineage of coccolithophores

Frontiers in Microbiology | Volume 7, Page 784

doi:10.3389/fmicb.2016.00784Tuesday, May 24, 2016

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/s12864-015-1983-5Saturday, November 14, 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.

The influence of anoxia and substrate availability on N2O cycling by denitrification in the upper boundary of the oxygen minimum zone off northern Chile

Journal of Marine Research | Volume 73, Issue 6, Pages 185-205

doi:10.1357/002224015817391285Sunday, November 1, 2015

Castro-González, M.Farías, L.

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-20Tuesday, September 1, 2015

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

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.2015.05.003Thursday, May 14, 2015

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

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.12282Thursday, April 30, 2015

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

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:10.1002/2014JG002699Wednesday, April 22, 2015

Pérez, C.A.DeGrandpre, M.D.Lagos, N.A.Saldías, G.S.Karin-Cascales, E.Vargas, C.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.2015.21Tuesday, April 21, 2015

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

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/S0718-19572015000100008Wednesday, April 1, 2015

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

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.2014.221Wednesday, April 1, 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.

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.2015.03.007Saturday, March 21, 2015

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-ySunday, March 1, 2015

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

Emiliania huxleyi endures N-limitation with anefficient metabolic budgeting and effectiveATP synthesis

BMC Genomics | Volume 15, Page 1051

doi:10.1186/1471-2164-15-1051Tuesday, December 2, 2014

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

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-4Saturday, October 4, 2014

Von Dassow, P.Collado-Fabbri, S.

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/s12237-014-9873-7Friday, September 5, 2014

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.

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.0102518Monday, July 14, 2014

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

Other research lines

Universidad de ConcepciónPontificia Universidad Católica de ChileMinisterio de Economía, Fomento y TurismoIniciativa Científica Milenio
© 2017 - Millenium Institute of Oceanography