Mass sedimentation of Phaeocystis pouchetii in the Barents Sea
Mass sedimentation of gelatinous colonies of the prymensiophyte Phaeocystis pouchetii were observed in the upper 100 m of Atlantic water in the central Barents Sea. Sedimentation rates of particulate organic carbon and nitrogen as well as pigments were the highest recorded so far from oceanic enviro...
Published in: | Marine Ecology Progress Series |
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Format: | Article in Journal/Newspaper |
Language: | English |
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1990
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Online Access: | http://hdl.handle.net/11250/108308 https://doi.org/10.3354/meps066183 |
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ftimr:oai:imr.brage.unit.no:11250/108308 2023-05-15T15:38:31+02:00 Mass sedimentation of Phaeocystis pouchetii in the Barents Sea Wassmann, Paul Vernet, Maria Mitchell, B. Greg Rey, Francisco 1990-09-06 1117054 bytes application/pdf http://hdl.handle.net/11250/108308 https://doi.org/10.3354/meps066183 eng eng urn:issn:0171-8630 http://hdl.handle.net/11250/108308 http://dx.doi.org/10.3354/meps066183 183-195 66 Marine Ecology Progress Series Phaeocystis pouchetii Journal article Peer reviewed 1990 ftimr https://doi.org/10.3354/meps066183 2021-09-23T20:15:12Z Mass sedimentation of gelatinous colonies of the prymensiophyte Phaeocystis pouchetii were observed in the upper 100 m of Atlantic water in the central Barents Sea. Sedimentation rates of particulate organic carbon and nitrogen as well as pigments were the highest recorded so far from oceanic environments of the North Atlantic or coastal areas of Norway. High relative concentrat~onso f phytoplankton pigments found in the traps are interpreted as a combination of sinlung of intact phytoplankton cells and undegraded pigments present in macrozooplankton faecal pellets. Evldence presented in this study implies that the zooplankton community of the Barents Sea was not able to control this phytoplankton spnng bloom. The suspended and sedimenting organic matter was rlch in carbon and pigments, but poor in nitrogen. This is explained by the presence of large amounts of carbon-rich mucilage which P. pouchetii colonies develop during their development. In addition to diatoms, sedimentation of a gelatinous phytoplankton species like P. pouchetii may contribute significantly to the formation of marine snow and vertical flux from the euphotic zone. However, degradation of P. pouchetii derived detritus at depths less than 100 m greatly diminishes the likely significance of P. pouchetii blooms in processes such as the carbon flux to the deep ocean and sequestering of CO2. Article in Journal/Newspaper Barents Sea North Atlantic Institute for Marine Research: Brage IMR Barents Sea Norway Marine Ecology Progress Series 66 183 195 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
Phaeocystis pouchetii |
spellingShingle |
Phaeocystis pouchetii Wassmann, Paul Vernet, Maria Mitchell, B. Greg Rey, Francisco Mass sedimentation of Phaeocystis pouchetii in the Barents Sea |
topic_facet |
Phaeocystis pouchetii |
description |
Mass sedimentation of gelatinous colonies of the prymensiophyte Phaeocystis pouchetii were observed in the upper 100 m of Atlantic water in the central Barents Sea. Sedimentation rates of particulate organic carbon and nitrogen as well as pigments were the highest recorded so far from oceanic environments of the North Atlantic or coastal areas of Norway. High relative concentrat~onso f phytoplankton pigments found in the traps are interpreted as a combination of sinlung of intact phytoplankton cells and undegraded pigments present in macrozooplankton faecal pellets. Evldence presented in this study implies that the zooplankton community of the Barents Sea was not able to control this phytoplankton spnng bloom. The suspended and sedimenting organic matter was rlch in carbon and pigments, but poor in nitrogen. This is explained by the presence of large amounts of carbon-rich mucilage which P. pouchetii colonies develop during their development. In addition to diatoms, sedimentation of a gelatinous phytoplankton species like P. pouchetii may contribute significantly to the formation of marine snow and vertical flux from the euphotic zone. However, degradation of P. pouchetii derived detritus at depths less than 100 m greatly diminishes the likely significance of P. pouchetii blooms in processes such as the carbon flux to the deep ocean and sequestering of CO2. |
format |
Article in Journal/Newspaper |
author |
Wassmann, Paul Vernet, Maria Mitchell, B. Greg Rey, Francisco |
author_facet |
Wassmann, Paul Vernet, Maria Mitchell, B. Greg Rey, Francisco |
author_sort |
Wassmann, Paul |
title |
Mass sedimentation of Phaeocystis pouchetii in the Barents Sea |
title_short |
Mass sedimentation of Phaeocystis pouchetii in the Barents Sea |
title_full |
Mass sedimentation of Phaeocystis pouchetii in the Barents Sea |
title_fullStr |
Mass sedimentation of Phaeocystis pouchetii in the Barents Sea |
title_full_unstemmed |
Mass sedimentation of Phaeocystis pouchetii in the Barents Sea |
title_sort |
mass sedimentation of phaeocystis pouchetii in the barents sea |
publishDate |
1990 |
url |
http://hdl.handle.net/11250/108308 https://doi.org/10.3354/meps066183 |
geographic |
Barents Sea Norway |
geographic_facet |
Barents Sea Norway |
genre |
Barents Sea North Atlantic |
genre_facet |
Barents Sea North Atlantic |
op_source |
183-195 66 Marine Ecology Progress Series |
op_relation |
urn:issn:0171-8630 http://hdl.handle.net/11250/108308 http://dx.doi.org/10.3354/meps066183 |
op_doi |
https://doi.org/10.3354/meps066183 |
container_title |
Marine Ecology Progress Series |
container_volume |
66 |
container_start_page |
183 |
op_container_end_page |
195 |
_version_ |
1766369510095323136 |