Contribution of Zooplankton to Vertical Carbon Fluxes in the Kara and White Seas
Data on the zooplankton community structure, gut evacuation rate and carbon content of zooplankton faecal pellets were used for assessing the contribution of zooplankton to vertical carbon fluxes in the White and Kara Seas. The results revealed strong regional and seasonal variations of pellet carbo...
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Deutsche Gesellschaft für Polarforschung; Alfred-Wegener-Institu für Polar- und Meeresforschung
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Online Access: | https://oceanrep.geomar.de/id/eprint/31988/ https://oceanrep.geomar.de/id/eprint/31988/1/Polarforsch2005_2-3_2.pdf |
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ftoceanrep:oai:oceanrep.geomar.de:31988 2023-05-15T15:13:48+02:00 Contribution of Zooplankton to Vertical Carbon Fluxes in the Kara and White Seas Kosobokova, K. Martynova, D. Prudkovsky, A. 2006 text https://oceanrep.geomar.de/id/eprint/31988/ https://oceanrep.geomar.de/id/eprint/31988/1/Polarforsch2005_2-3_2.pdf en eng Deutsche Gesellschaft für Polarforschung; Alfred-Wegener-Institu für Polar- und Meeresforschung https://oceanrep.geomar.de/id/eprint/31988/1/Polarforsch2005_2-3_2.pdf Kosobokova, K., Martynova, D. and Prudkovsky, A. (2006) Contribution of Zooplankton to Vertical Carbon Fluxes in the Kara and White Seas. Open Access Polarforschung, 75 (2-3). pp. 77-82. info:eu-repo/semantics/openAccess Article NonPeerReviewed 2006 ftoceanrep 2023-04-07T15:24:35Z Data on the zooplankton community structure, gut evacuation rate and carbon content of zooplankton faecal pellets were used for assessing the contribution of zooplankton to vertical carbon fluxes in the White and Kara Seas. The results revealed strong regional and seasonal variations of pellet carbon input related to differences in structure and dynamics of the zooplankton communities in the regions studied. In the deep regions of the White Sea, maximum daily pellet carbon flux from the 0-50 m layer was observed in the spring. It reached 98 mg Corg m-2 day-1 and coincided with a strong predominance of the large arctic herbivorous copepod Calanus glacialis in the surface layers. In summer and fall, it decreased by 1 to 2 orders of magnitude due to migration of this copepod to its overwintering depths. In contrast, in the shallow coastal regions, the pellet production was low in spring, gradually increased during summer and reached its maximum of 138 mg Corg m-2 day-1 by late summer to beginning of autumn. Such a seasonal pattern was in accordance with the seasonal variation of abundance of major pellet producers, the small boreal copepods Acartia bifilosa, Centropages hamatus, and Temora longicornis. In the estuarine zone of the Kara Sea, the pellet flux was mostly formed by pellets of brackish-water omnivorous copepods. It varied from 35 mg Corg m-2 day-1 in 1997 to 96 mg Corg m-2 day-1 in 1999. In the central Kara Sea with its typical marine community, the daily flux reached 125 mg Corg m-2 day-1 in summer. The results of our calculations indicate that both in the White and Kara seas zooplankton pellet carbon contributes up to 30 % to the total carbon flux during particular seasons. Article in Journal/Newspaper Arctic Calanus glacialis Kara Sea Polarforschung White Sea Zooplankton Copepods OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Kara Sea White Sea |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Data on the zooplankton community structure, gut evacuation rate and carbon content of zooplankton faecal pellets were used for assessing the contribution of zooplankton to vertical carbon fluxes in the White and Kara Seas. The results revealed strong regional and seasonal variations of pellet carbon input related to differences in structure and dynamics of the zooplankton communities in the regions studied. In the deep regions of the White Sea, maximum daily pellet carbon flux from the 0-50 m layer was observed in the spring. It reached 98 mg Corg m-2 day-1 and coincided with a strong predominance of the large arctic herbivorous copepod Calanus glacialis in the surface layers. In summer and fall, it decreased by 1 to 2 orders of magnitude due to migration of this copepod to its overwintering depths. In contrast, in the shallow coastal regions, the pellet production was low in spring, gradually increased during summer and reached its maximum of 138 mg Corg m-2 day-1 by late summer to beginning of autumn. Such a seasonal pattern was in accordance with the seasonal variation of abundance of major pellet producers, the small boreal copepods Acartia bifilosa, Centropages hamatus, and Temora longicornis. In the estuarine zone of the Kara Sea, the pellet flux was mostly formed by pellets of brackish-water omnivorous copepods. It varied from 35 mg Corg m-2 day-1 in 1997 to 96 mg Corg m-2 day-1 in 1999. In the central Kara Sea with its typical marine community, the daily flux reached 125 mg Corg m-2 day-1 in summer. The results of our calculations indicate that both in the White and Kara seas zooplankton pellet carbon contributes up to 30 % to the total carbon flux during particular seasons. |
format |
Article in Journal/Newspaper |
author |
Kosobokova, K. Martynova, D. Prudkovsky, A. |
spellingShingle |
Kosobokova, K. Martynova, D. Prudkovsky, A. Contribution of Zooplankton to Vertical Carbon Fluxes in the Kara and White Seas |
author_facet |
Kosobokova, K. Martynova, D. Prudkovsky, A. |
author_sort |
Kosobokova, K. |
title |
Contribution of Zooplankton to Vertical Carbon Fluxes in the Kara and White Seas |
title_short |
Contribution of Zooplankton to Vertical Carbon Fluxes in the Kara and White Seas |
title_full |
Contribution of Zooplankton to Vertical Carbon Fluxes in the Kara and White Seas |
title_fullStr |
Contribution of Zooplankton to Vertical Carbon Fluxes in the Kara and White Seas |
title_full_unstemmed |
Contribution of Zooplankton to Vertical Carbon Fluxes in the Kara and White Seas |
title_sort |
contribution of zooplankton to vertical carbon fluxes in the kara and white seas |
publisher |
Deutsche Gesellschaft für Polarforschung; Alfred-Wegener-Institu für Polar- und Meeresforschung |
publishDate |
2006 |
url |
https://oceanrep.geomar.de/id/eprint/31988/ https://oceanrep.geomar.de/id/eprint/31988/1/Polarforsch2005_2-3_2.pdf |
geographic |
Arctic Kara Sea White Sea |
geographic_facet |
Arctic Kara Sea White Sea |
genre |
Arctic Calanus glacialis Kara Sea Polarforschung White Sea Zooplankton Copepods |
genre_facet |
Arctic Calanus glacialis Kara Sea Polarforschung White Sea Zooplankton Copepods |
op_relation |
https://oceanrep.geomar.de/id/eprint/31988/1/Polarforsch2005_2-3_2.pdf Kosobokova, K., Martynova, D. and Prudkovsky, A. (2006) Contribution of Zooplankton to Vertical Carbon Fluxes in the Kara and White Seas. Open Access Polarforschung, 75 (2-3). pp. 77-82. |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766344321853816832 |