Zooplankton biomass and metabolism in the frontal zones of the Bransfield Strait, Antarctica
Biomass, abundance, gut fluorescence and electron transfer system (ETS) activity of zooplankton have been studied in the Bransfield Strait (Antarctic Peninsula). Two well-defined frontal systems were observed: (1) the so-called Peninsula front between the Transitional Bellingshausen Water (TBW) and...
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ftcsic:oai:digital.csic.es:10261/103872 2024-02-11T09:55:53+01:00 Zooplankton biomass and metabolism in the frontal zones of the Bransfield Strait, Antarctica Hernández León, Santiago Sangrà, Pablo Lehette, Pascal Lubián, Luis M. Almeida, Carlos 2013-02 http://hdl.handle.net/10261/103872 https://doi.org/10.1016/j.jmarsys.2012.11.001 unknown Elsevier doi:10.1016/j.jmarsys.2012.11.001 issn: 0924-7963 Journal of Marine Systems 111-112: 196-207 (2013) http://hdl.handle.net/10261/103872 none Zooplankton Antarctica Metabolism Fronts Biomass artículo http://purl.org/coar/resource_type/c_6501 2013 ftcsic https://doi.org/10.1016/j.jmarsys.2012.11.001 2024-01-16T10:02:00Z Biomass, abundance, gut fluorescence and electron transfer system (ETS) activity of zooplankton have been studied in the Bransfield Strait (Antarctic Peninsula). Two well-defined frontal systems were observed: (1) the so-called Peninsula front between the Transitional Bellingshausen Water (TBW) and Transitional Weddell Waters (TWW); and (2) the Bransfield front related to the Bransfield Gravity Current flowing northeastward along the slope of the South Shetland Islands. As expected, a typical pattern of plankton distribution was observed with higher phyto- and mesozooplankton in the TBW. However, our more detailed study of the Peninsula front between the TBW and TWW showed the sinking of phytoplankton and a higher abundance of large copepods on the TBW side of the front, while krill and small copepods were observed on the opposite side, in the TWW. Ageostrophic secondary circulation around the front supported a striking food web at both sides of the front. It is suggested that this pattern drives a relatively important flux of carbon, due to the sinking of phytoplankton and the production of fast sinking fecal pellets by large copepods and krill. © 2012 Elsevier B.V. This research was supported financially by the Breddies (REN2001-2650) and Coupling (CTM2008-06343-CO2-01) projects of the CICYT (Spanish Commission for Science and Technology). Part of this paper was written while PS was visiting the Institute of Geophysics and Planetary Physics, University of California, Los Angeles, supported by a scholarship from the Spanish Government (Salvador de Madariaga, PR2010-0517). Peer Reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait South Shetland Islands Copepods Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Peninsula Bransfield Strait Madariaga ENVELOPE(-61.272,-61.272,-64.048,-64.048) South Shetland Islands Weddell Journal of Marine Systems 111-112 196 207 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Zooplankton Antarctica Metabolism Fronts Biomass |
spellingShingle |
Zooplankton Antarctica Metabolism Fronts Biomass Hernández León, Santiago Sangrà, Pablo Lehette, Pascal Lubián, Luis M. Almeida, Carlos Zooplankton biomass and metabolism in the frontal zones of the Bransfield Strait, Antarctica |
topic_facet |
Zooplankton Antarctica Metabolism Fronts Biomass |
description |
Biomass, abundance, gut fluorescence and electron transfer system (ETS) activity of zooplankton have been studied in the Bransfield Strait (Antarctic Peninsula). Two well-defined frontal systems were observed: (1) the so-called Peninsula front between the Transitional Bellingshausen Water (TBW) and Transitional Weddell Waters (TWW); and (2) the Bransfield front related to the Bransfield Gravity Current flowing northeastward along the slope of the South Shetland Islands. As expected, a typical pattern of plankton distribution was observed with higher phyto- and mesozooplankton in the TBW. However, our more detailed study of the Peninsula front between the TBW and TWW showed the sinking of phytoplankton and a higher abundance of large copepods on the TBW side of the front, while krill and small copepods were observed on the opposite side, in the TWW. Ageostrophic secondary circulation around the front supported a striking food web at both sides of the front. It is suggested that this pattern drives a relatively important flux of carbon, due to the sinking of phytoplankton and the production of fast sinking fecal pellets by large copepods and krill. © 2012 Elsevier B.V. This research was supported financially by the Breddies (REN2001-2650) and Coupling (CTM2008-06343-CO2-01) projects of the CICYT (Spanish Commission for Science and Technology). Part of this paper was written while PS was visiting the Institute of Geophysics and Planetary Physics, University of California, Los Angeles, supported by a scholarship from the Spanish Government (Salvador de Madariaga, PR2010-0517). Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Hernández León, Santiago Sangrà, Pablo Lehette, Pascal Lubián, Luis M. Almeida, Carlos |
author_facet |
Hernández León, Santiago Sangrà, Pablo Lehette, Pascal Lubián, Luis M. Almeida, Carlos |
author_sort |
Hernández León, Santiago |
title |
Zooplankton biomass and metabolism in the frontal zones of the Bransfield Strait, Antarctica |
title_short |
Zooplankton biomass and metabolism in the frontal zones of the Bransfield Strait, Antarctica |
title_full |
Zooplankton biomass and metabolism in the frontal zones of the Bransfield Strait, Antarctica |
title_fullStr |
Zooplankton biomass and metabolism in the frontal zones of the Bransfield Strait, Antarctica |
title_full_unstemmed |
Zooplankton biomass and metabolism in the frontal zones of the Bransfield Strait, Antarctica |
title_sort |
zooplankton biomass and metabolism in the frontal zones of the bransfield strait, antarctica |
publisher |
Elsevier |
publishDate |
2013 |
url |
http://hdl.handle.net/10261/103872 https://doi.org/10.1016/j.jmarsys.2012.11.001 |
long_lat |
ENVELOPE(-61.272,-61.272,-64.048,-64.048) |
geographic |
Antarctic Antarctic Peninsula Bransfield Strait Madariaga South Shetland Islands Weddell |
geographic_facet |
Antarctic Antarctic Peninsula Bransfield Strait Madariaga South Shetland Islands Weddell |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait South Shetland Islands Copepods |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait South Shetland Islands Copepods |
op_relation |
doi:10.1016/j.jmarsys.2012.11.001 issn: 0924-7963 Journal of Marine Systems 111-112: 196-207 (2013) http://hdl.handle.net/10261/103872 |
op_rights |
none |
op_doi |
https://doi.org/10.1016/j.jmarsys.2012.11.001 |
container_title |
Journal of Marine Systems |
container_volume |
111-112 |
container_start_page |
196 |
op_container_end_page |
207 |
_version_ |
1790599318687711232 |