Biomass and respiratory ETS activity of microplankton in the Barents Sea
The activity of the respiratory electron transport system (ETS) of microplankton was measured in the Central Barents Sea during summer 1988. In vitro ETS activity increased with assay temperature between 0 and 2°C, as reported for other enzyme systems in plankton. The higher in situ activities were...
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Norwegian Polar Institute
1991
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ftjpolarres:oai:journals.openacademia.net:article/2309 2023-05-15T14:01:21+02:00 Biomass and respiratory ETS activity of microplankton in the Barents Sea Martinez, Rosa 1991-01-09 application/pdf https://polarresearch.net/index.php/polar/article/view/2309 https://doi.org/10.3402/polar.v10i1.6738 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2309/5559 https://polarresearch.net/index.php/polar/article/view/2309 doi:10.3402/polar.v10i1.6738 Copyright (c) 2018 Polar Research Polar Research; Vol. 10 No. 1: Special issue: Proceedings of the Pro Mare Symposium on Polar Marine Ecology. Part 1; 193-200 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1991 ftjpolarres https://doi.org/10.3402/polar.v10i1.6738 2021-11-11T19:12:21Z The activity of the respiratory electron transport system (ETS) of microplankton was measured in the Central Barents Sea during summer 1988. In vitro ETS activity increased with assay temperature between 0 and 2°C, as reported for other enzyme systems in plankton. The higher in situ activities were observed near the surface (upper 10-25 m) and were associated with chlorophyll a maxima. Respiratory activity in the upper 60 m accounted for 40-60% of the total column respiration. The activities (0-100 m) were lower than oxygen consumption rates reported in the Canadian Arctic, mainly due to lower phytoplankton biomass. They were higher than ETS activity measured in the Weddell Sea (Antarctic Ocean). A high detrital versus total microplankton mass accounted for the low activity related to particulate organic carbon (POC). In general, the levels of respiratory ETS activity were in the range reported for temperate oligotrophic oceanic regions. Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Arctic Barents Sea Phytoplankton Polar Research Weddell Sea Polar Research (E-Journal) Arctic Antarctic Barents Sea Weddell Sea Weddell Antarctic Ocean Polar Research 10 1 193 200 |
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Open Polar |
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Polar Research (E-Journal) |
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ftjpolarres |
language |
English |
description |
The activity of the respiratory electron transport system (ETS) of microplankton was measured in the Central Barents Sea during summer 1988. In vitro ETS activity increased with assay temperature between 0 and 2°C, as reported for other enzyme systems in plankton. The higher in situ activities were observed near the surface (upper 10-25 m) and were associated with chlorophyll a maxima. Respiratory activity in the upper 60 m accounted for 40-60% of the total column respiration. The activities (0-100 m) were lower than oxygen consumption rates reported in the Canadian Arctic, mainly due to lower phytoplankton biomass. They were higher than ETS activity measured in the Weddell Sea (Antarctic Ocean). A high detrital versus total microplankton mass accounted for the low activity related to particulate organic carbon (POC). In general, the levels of respiratory ETS activity were in the range reported for temperate oligotrophic oceanic regions. |
format |
Article in Journal/Newspaper |
author |
Martinez, Rosa |
spellingShingle |
Martinez, Rosa Biomass and respiratory ETS activity of microplankton in the Barents Sea |
author_facet |
Martinez, Rosa |
author_sort |
Martinez, Rosa |
title |
Biomass and respiratory ETS activity of microplankton in the Barents Sea |
title_short |
Biomass and respiratory ETS activity of microplankton in the Barents Sea |
title_full |
Biomass and respiratory ETS activity of microplankton in the Barents Sea |
title_fullStr |
Biomass and respiratory ETS activity of microplankton in the Barents Sea |
title_full_unstemmed |
Biomass and respiratory ETS activity of microplankton in the Barents Sea |
title_sort |
biomass and respiratory ets activity of microplankton in the barents sea |
publisher |
Norwegian Polar Institute |
publishDate |
1991 |
url |
https://polarresearch.net/index.php/polar/article/view/2309 https://doi.org/10.3402/polar.v10i1.6738 |
geographic |
Arctic Antarctic Barents Sea Weddell Sea Weddell Antarctic Ocean |
geographic_facet |
Arctic Antarctic Barents Sea Weddell Sea Weddell Antarctic Ocean |
genre |
Antarc* Antarctic Antarctic Ocean Arctic Barents Sea Phytoplankton Polar Research Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Ocean Arctic Barents Sea Phytoplankton Polar Research Weddell Sea |
op_source |
Polar Research; Vol. 10 No. 1: Special issue: Proceedings of the Pro Mare Symposium on Polar Marine Ecology. Part 1; 193-200 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2309/5559 https://polarresearch.net/index.php/polar/article/view/2309 doi:10.3402/polar.v10i1.6738 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v10i1.6738 |
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Polar Research |
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10 |
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1 |
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193 |
op_container_end_page |
200 |
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1766271082202923008 |