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...
Published in: | Journal of Marine Systems |
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Online Access: | http://hdl.handle.net/10553/47628 https://doi.org/10.1016/j.jmarsys.2012.11.001 |
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ftunivlaspalmas:oai:https://accedacris.ulpgc.es:10553/47628 2023-05-15T14:00:50+02:00 Zooplankton biomass and metabolism in the frontal zones of the Bransfield Strait, Antarctica Hernández-León, S. Sangrá Inciarte, Pablo Lehette, P. Lubián, L. Almeida, C. Putzeys, S. Bécognée, P. Andrade, M.P. 6701465678 55938118400 35107243800 6603675433 56819187800 56582166600 14017739100 57198193422 2013 http://hdl.handle.net/10553/47628 https://doi.org/10.1016/j.jmarsys.2012.11.001 eng eng 0924-7963 Journal of Marine Systems 0924-7963 http://hdl.handle.net/10553/47628 doi:10.1016/j.jmarsys.2012.11.001 2-s2.0-84872266052 207 196 111-112 Journal of Marine Systems [ISSN 0924-7963], v. 111-112, p. 196-207 251001 Oceanografía biológica Zooplankton Biomass Metabolism Fronts Antarctica 2013 ftunivlaspalmas https://doi.org/10.1016/j.jmarsys.2012.11.001 2020-01-22T00:08:07Z 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. Other/Unknown Material Antarc* Antarctic Antarctic Peninsula Antarctica Bransfield Strait South Shetland Islands Copepods Universidad de Las Palmas de Gran Canaria: Acceda Antarctic Antarctic Peninsula Bransfield Strait South Shetland Islands Weddell Journal of Marine Systems 111-112 196 207 |
institution |
Open Polar |
collection |
Universidad de Las Palmas de Gran Canaria: Acceda |
op_collection_id |
ftunivlaspalmas |
language |
English |
topic |
251001 Oceanografía biológica Zooplankton Biomass Metabolism Fronts Antarctica |
spellingShingle |
251001 Oceanografía biológica Zooplankton Biomass Metabolism Fronts Antarctica Hernández-León, S. Sangrá Inciarte, Pablo Lehette, P. Lubián, L. Almeida, C. Putzeys, S. Bécognée, P. Andrade, M.P. Zooplankton biomass and metabolism in the frontal zones of the Bransfield Strait, Antarctica |
topic_facet |
251001 Oceanografía biológica Zooplankton Biomass Metabolism Fronts Antarctica |
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. |
author2 |
6701465678 55938118400 35107243800 6603675433 56819187800 56582166600 14017739100 57198193422 |
author |
Hernández-León, S. Sangrá Inciarte, Pablo Lehette, P. Lubián, L. Almeida, C. Putzeys, S. Bécognée, P. Andrade, M.P. |
author_facet |
Hernández-León, S. Sangrá Inciarte, Pablo Lehette, P. Lubián, L. Almeida, C. Putzeys, S. Bécognée, P. Andrade, M.P. |
author_sort |
Hernández-León, S. |
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 |
0924-7963 |
publishDate |
2013 |
url |
http://hdl.handle.net/10553/47628 https://doi.org/10.1016/j.jmarsys.2012.11.001 |
geographic |
Antarctic Antarctic Peninsula Bransfield Strait South Shetland Islands Weddell |
geographic_facet |
Antarctic Antarctic Peninsula Bransfield Strait 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_source |
Journal of Marine Systems [ISSN 0924-7963], v. 111-112, p. 196-207 |
op_relation |
Journal of Marine Systems 0924-7963 http://hdl.handle.net/10553/47628 doi:10.1016/j.jmarsys.2012.11.001 2-s2.0-84872266052 207 196 111-112 |
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_ |
1766270181618745344 |