Micro- and mesozooplankton responses during two contrasting summers in a coastal Antarctic environment
Rapid climate-driven melting of coastal glaciersmay control plankton dynamics in the WesternAntarctic Peninsula. It is known that in Potter Cove, 25 deMayo/King George Island, phytoplankton is tightly coupledto meltwater input. However, no information onzooplankton is available in this regard. The a...
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ftconicet:oai:ri.conicet.gov.ar:11336/12560 2023-10-09T21:44:55+02:00 Micro- and mesozooplankton responses during two contrasting summers in a coastal Antarctic environment Garcia, Maximiliano Darío Hoffmeyer, Monica Susana López Abbate, María Celeste Barría de Cao, María Sonia Pettigrosso, Rosa E. Almandoz, Gaston Osvaldo Hernando, Marcelo P. Schloss, Irene Ruth application/pdf http://hdl.handle.net/11336/12560 eng eng Springer info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00300-015-1678-z info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-015-1678-z http://hdl.handle.net/11336/12560 Garcia, Maximiliano Darío; Hoffmeyer, Monica Susana; López Abbate, María Celeste; Barría de Cao, María Sonia; Pettigrosso, Rosa E.; et al.; Micro- and mesozooplankton responses during two contrasting summers in a coastal Antarctic environment; Springer; Polar Biology; 39; 1; 1-2015; 123-137 0722-4060 1432-2056 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Western Antarctic Peninsula Microzooplankton Mesozooplankton Biomass Top-Down/Bottom-Up https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/s00300-015-1678-z 2023-09-24T19:51:20Z Rapid climate-driven melting of coastal glaciersmay control plankton dynamics in the WesternAntarctic Peninsula. It is known that in Potter Cove, 25 deMayo/King George Island, phytoplankton is tightly coupledto meltwater input. However, no information onzooplankton is available in this regard. The aim of thisstudy was therefore to examine the structure and dynamicsof microzooplankton and mesozooplankton in two zones(the inner and outer Potter Cove) differently impacted byglacier melting during two contrasting austral summers(2010 and 2011). Microzooplankton composition differedbetween the two zones and years analyzed, and its totalbiomass was observed to be highest far from the glacierinfluence and during 2010. Mesozooplankton compositionand biomass were similar in the two zones and yearsanalyzed. Colder than usual conditions in the summer of2010 prevented glacier melting, thus favoring the developmentof an exceptional micro-sized diatom bloom(*190 lgCl-1 and [15 lg l-1 chlorophyll a), whichwas tightly followed by a maximum in large copepodabundance. After the bloom and in coincidence with intenseglacier melting, large diatoms and large copepodswere observed to be replaced by nanophytoplankton andmicrozooplankton (aloricate ciliates and dinoflagellates),respectively. In 2011, low phytoplankton abundance,probably controlled by high tintinnid biomass, was observedas a result of warmer temperatures than 2010 andlow-salinity waters. Large copepods appeared to have exerteda high grazing pressure on aloricate ciliates andheterotrophic dinoflagellates in 2011. Our results suggestthat whereas the joint effect of water temperature, salinityand phytoplankton availability as well as compositioncould be of primary relevance in structuring micro- andmesozooplankton community, zooplankton could be ofsecondary relevance in controlling phytoplankton biomassin Potter Cove during the two summers analyzed. Fil: Garcia, Maximiliano Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula King George Island Polar Biology Copepods CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Antarctic Peninsula Austral King George Island Potter Cove Polar Biology 39 1 123 137 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Western Antarctic Peninsula Microzooplankton Mesozooplankton Biomass Top-Down/Bottom-Up https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Western Antarctic Peninsula Microzooplankton Mesozooplankton Biomass Top-Down/Bottom-Up https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Garcia, Maximiliano Darío Hoffmeyer, Monica Susana López Abbate, María Celeste Barría de Cao, María Sonia Pettigrosso, Rosa E. Almandoz, Gaston Osvaldo Hernando, Marcelo P. Schloss, Irene Ruth Micro- and mesozooplankton responses during two contrasting summers in a coastal Antarctic environment |
topic_facet |
Western Antarctic Peninsula Microzooplankton Mesozooplankton Biomass Top-Down/Bottom-Up https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Rapid climate-driven melting of coastal glaciersmay control plankton dynamics in the WesternAntarctic Peninsula. It is known that in Potter Cove, 25 deMayo/King George Island, phytoplankton is tightly coupledto meltwater input. However, no information onzooplankton is available in this regard. The aim of thisstudy was therefore to examine the structure and dynamicsof microzooplankton and mesozooplankton in two zones(the inner and outer Potter Cove) differently impacted byglacier melting during two contrasting austral summers(2010 and 2011). Microzooplankton composition differedbetween the two zones and years analyzed, and its totalbiomass was observed to be highest far from the glacierinfluence and during 2010. Mesozooplankton compositionand biomass were similar in the two zones and yearsanalyzed. Colder than usual conditions in the summer of2010 prevented glacier melting, thus favoring the developmentof an exceptional micro-sized diatom bloom(*190 lgCl-1 and [15 lg l-1 chlorophyll a), whichwas tightly followed by a maximum in large copepodabundance. After the bloom and in coincidence with intenseglacier melting, large diatoms and large copepodswere observed to be replaced by nanophytoplankton andmicrozooplankton (aloricate ciliates and dinoflagellates),respectively. In 2011, low phytoplankton abundance,probably controlled by high tintinnid biomass, was observedas a result of warmer temperatures than 2010 andlow-salinity waters. Large copepods appeared to have exerteda high grazing pressure on aloricate ciliates andheterotrophic dinoflagellates in 2011. Our results suggestthat whereas the joint effect of water temperature, salinityand phytoplankton availability as well as compositioncould be of primary relevance in structuring micro- andmesozooplankton community, zooplankton could be ofsecondary relevance in controlling phytoplankton biomassin Potter Cove during the two summers analyzed. Fil: Garcia, Maximiliano Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico ... |
format |
Article in Journal/Newspaper |
author |
Garcia, Maximiliano Darío Hoffmeyer, Monica Susana López Abbate, María Celeste Barría de Cao, María Sonia Pettigrosso, Rosa E. Almandoz, Gaston Osvaldo Hernando, Marcelo P. Schloss, Irene Ruth |
author_facet |
Garcia, Maximiliano Darío Hoffmeyer, Monica Susana López Abbate, María Celeste Barría de Cao, María Sonia Pettigrosso, Rosa E. Almandoz, Gaston Osvaldo Hernando, Marcelo P. Schloss, Irene Ruth |
author_sort |
Garcia, Maximiliano Darío |
title |
Micro- and mesozooplankton responses during two contrasting summers in a coastal Antarctic environment |
title_short |
Micro- and mesozooplankton responses during two contrasting summers in a coastal Antarctic environment |
title_full |
Micro- and mesozooplankton responses during two contrasting summers in a coastal Antarctic environment |
title_fullStr |
Micro- and mesozooplankton responses during two contrasting summers in a coastal Antarctic environment |
title_full_unstemmed |
Micro- and mesozooplankton responses during two contrasting summers in a coastal Antarctic environment |
title_sort |
micro- and mesozooplankton responses during two contrasting summers in a coastal antarctic environment |
publisher |
Springer |
url |
http://hdl.handle.net/11336/12560 |
geographic |
Antarctic Antarctic Peninsula Austral King George Island Potter Cove |
geographic_facet |
Antarctic Antarctic Peninsula Austral King George Island Potter Cove |
genre |
Antarc* Antarctic Antarctic Peninsula King George Island Polar Biology Copepods |
genre_facet |
Antarc* Antarctic Antarctic Peninsula King George Island Polar Biology Copepods |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007%2Fs00300-015-1678-z info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-015-1678-z http://hdl.handle.net/11336/12560 Garcia, Maximiliano Darío; Hoffmeyer, Monica Susana; López Abbate, María Celeste; Barría de Cao, María Sonia; Pettigrosso, Rosa E.; et al.; Micro- and mesozooplankton responses during two contrasting summers in a coastal Antarctic environment; Springer; Polar Biology; 39; 1; 1-2015; 123-137 0722-4060 1432-2056 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s00300-015-1678-z |
container_title |
Polar Biology |
container_volume |
39 |
container_issue |
1 |
container_start_page |
123 |
op_container_end_page |
137 |
_version_ |
1779314585071779840 |