Plankton community respiration in Bransfield Strait (Antarctic Ocean) during austral spring
Community respiration (R) was determined in Bransfield Strait from oxygen changes in water samples incubated in borosilicate bottles maintained at in situ temperature. The respiratory electron transport system (ETS) activity of seawater communities was also measured from the same samples. Both data...
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1995
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ftunivlaspalmas:oai:https://accedacris.ulpgc.es:10553/44236 2023-05-15T13:44:42+02:00 Plankton community respiration in Bransfield Strait (Antarctic Ocean) during austral spring Arístegui, Javier Montero, María F. Aristegui, Javier Montero, Maria F. 7006816204 7102553402 227201 1878283 1995 http://hdl.handle.net/10553/44236 https://doi.org/10.1093/plankt/17.8.1647 eng eng Journal of Plankton Research 0142-7873 http://hdl.handle.net/10553/44236 doi:10.1093/plankt/17.8.1647 0028979908 A1995RX12600005 1659 8 1647 17 WOS:A1995RX12600005 D-5833-2013 No ID Journal of Plankton Research [ISSN 0142-7873], v. 17 (8), p. 1647-1659 2510 Oceanografía Plankton community respiration Antarctic ocean 1995 ftunivlaspalmas https://doi.org/10.1093/plankt/17.8.1647 2019-09-08T16:41:47Z Community respiration (R) was determined in Bransfield Strait from oxygen changes in water samples incubated in borosilicate bottles maintained at in situ temperature. The respiratory electron transport system (ETS) activity of seawater communities was also measured from the same samples. Both data sets were related by the regression equation: log R (mg O2 m−3 day−1)=0.462+0.730×log ETS activity mg O2 m−3 day−1) (r=0.80, n=23). From this equation and 37 ETS activity depth profiles, we calculated the integrated (0–100 m) community respiration as being in the range 1.2–4.5 g O2 m−2 day−1 (mean=2.2). These values do not differ significantly from other published results for the Arctic and Antarctic Oceans. Assuming a respiratory quotient of unity, the areal respiration ranges between 0.45 and 1.69 g C m−2 day−1 (mean=0.8). This would represent an important sink for the primary production reported for Brans Strait. The spatial distribution of community respiration showed higher values associated with the warmer and phytoplankton-rich waters outflowing from Gerlache Strait into Bransfield Strait, and with the front that separates Bellingshausen Sea waters from Weddell Sea waters. We suggest that this pattern of distribution may be related to the transport of organic matter by the Bransfield Current along the front. Other/Unknown Material Antarc* Antarctic Antarctic Ocean Arctic Bellingshausen Sea Bransfield Strait Phytoplankton Weddell Sea Universidad de Las Palmas de Gran Canaria: Acceda Antarctic Antarctic Ocean Arctic Austral Bellingshausen Sea Bransfield Strait Gerlache ENVELOPE(99.033,99.033,-66.500,-66.500) Gerlache Strait ENVELOPE(-62.333,-62.333,-64.500,-64.500) Weddell Weddell Sea Journal of Plankton Research 17 8 1647 1659 |
institution |
Open Polar |
collection |
Universidad de Las Palmas de Gran Canaria: Acceda |
op_collection_id |
ftunivlaspalmas |
language |
English |
topic |
2510 Oceanografía Plankton community respiration Antarctic ocean |
spellingShingle |
2510 Oceanografía Plankton community respiration Antarctic ocean Arístegui, Javier Montero, María F. Plankton community respiration in Bransfield Strait (Antarctic Ocean) during austral spring |
topic_facet |
2510 Oceanografía Plankton community respiration Antarctic ocean |
description |
Community respiration (R) was determined in Bransfield Strait from oxygen changes in water samples incubated in borosilicate bottles maintained at in situ temperature. The respiratory electron transport system (ETS) activity of seawater communities was also measured from the same samples. Both data sets were related by the regression equation: log R (mg O2 m−3 day−1)=0.462+0.730×log ETS activity mg O2 m−3 day−1) (r=0.80, n=23). From this equation and 37 ETS activity depth profiles, we calculated the integrated (0–100 m) community respiration as being in the range 1.2–4.5 g O2 m−2 day−1 (mean=2.2). These values do not differ significantly from other published results for the Arctic and Antarctic Oceans. Assuming a respiratory quotient of unity, the areal respiration ranges between 0.45 and 1.69 g C m−2 day−1 (mean=0.8). This would represent an important sink for the primary production reported for Brans Strait. The spatial distribution of community respiration showed higher values associated with the warmer and phytoplankton-rich waters outflowing from Gerlache Strait into Bransfield Strait, and with the front that separates Bellingshausen Sea waters from Weddell Sea waters. We suggest that this pattern of distribution may be related to the transport of organic matter by the Bransfield Current along the front. |
author2 |
Aristegui, Javier Montero, Maria F. 7006816204 7102553402 227201 1878283 |
author |
Arístegui, Javier Montero, María F. |
author_facet |
Arístegui, Javier Montero, María F. |
author_sort |
Arístegui, Javier |
title |
Plankton community respiration in Bransfield Strait (Antarctic Ocean) during austral spring |
title_short |
Plankton community respiration in Bransfield Strait (Antarctic Ocean) during austral spring |
title_full |
Plankton community respiration in Bransfield Strait (Antarctic Ocean) during austral spring |
title_fullStr |
Plankton community respiration in Bransfield Strait (Antarctic Ocean) during austral spring |
title_full_unstemmed |
Plankton community respiration in Bransfield Strait (Antarctic Ocean) during austral spring |
title_sort |
plankton community respiration in bransfield strait (antarctic ocean) during austral spring |
publishDate |
1995 |
url |
http://hdl.handle.net/10553/44236 https://doi.org/10.1093/plankt/17.8.1647 |
long_lat |
ENVELOPE(99.033,99.033,-66.500,-66.500) ENVELOPE(-62.333,-62.333,-64.500,-64.500) |
geographic |
Antarctic Antarctic Ocean Arctic Austral Bellingshausen Sea Bransfield Strait Gerlache Gerlache Strait Weddell Weddell Sea |
geographic_facet |
Antarctic Antarctic Ocean Arctic Austral Bellingshausen Sea Bransfield Strait Gerlache Gerlache Strait Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Ocean Arctic Bellingshausen Sea Bransfield Strait Phytoplankton Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Ocean Arctic Bellingshausen Sea Bransfield Strait Phytoplankton Weddell Sea |
op_source |
Journal of Plankton Research [ISSN 0142-7873], v. 17 (8), p. 1647-1659 |
op_relation |
Journal of Plankton Research 0142-7873 http://hdl.handle.net/10553/44236 doi:10.1093/plankt/17.8.1647 0028979908 A1995RX12600005 1659 8 1647 17 WOS:A1995RX12600005 D-5833-2013 No ID |
op_doi |
https://doi.org/10.1093/plankt/17.8.1647 |
container_title |
Journal of Plankton Research |
container_volume |
17 |
container_issue |
8 |
container_start_page |
1647 |
op_container_end_page |
1659 |
_version_ |
1766205045807775744 |