Vertical distribution of sympagic meiofauna in sea ice in the Canadian Beaufort Sea
This is the first study to determine vertical distribution patterns of sympagic meiofauna, including metazoans, protozoans and eggs <20 μm, in the Amundsen Gulf (southeastern Beaufort Sea, Arctic). Full sea-ice cores were sampled from mid of March to end of May 2008 (Circumpolar Flaw Lead system...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/154486 2023-05-15T13:22:57+02:00 Vertical distribution of sympagic meiofauna in sea ice in the Canadian Beaufort Sea Marquardt, M.a Kramer, M. Carnat, Gauthier Werner, I. A. 2011 No full-text files http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/154486 en eng http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/154486 Polar Biology, 34 (12 Sciences exactes et naturelles info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2011 ftunivbruxelles 2022-06-12T21:12:36Z This is the first study to determine vertical distribution patterns of sympagic meiofauna, including metazoans, protozoans and eggs <20 μm, in the Amundsen Gulf (southeastern Beaufort Sea, Arctic). Full sea-ice cores were sampled from mid of March to end of May 2008 (Circumpolar Flaw Lead system study). Investigations were performed on first-year ice from three pack- and three fast-ice stations. Additionally, 5-cm bottom-ice sections were sampled at 13 pack-ice and 5 fast-ice stations. The metazoan community was composed of nematodes, rotifers, copepods, copepod nauplii, platyhelminthes and a few rare taxa such as mollusks, cnidarians and nemerteans. High numbers of eggs, between 50 and 2,188 eggs L -1, particularly of nematodes and copepods, were present in the ice. Investigations revealed also eggs of the pelagic species Calanus hyperboreus and Sagitta spp. within the ice, so that further research is needed to clarify whether more organisms than expected might use this habitat as a reproduction ground. Many different morphotypes of protozoans were observed in the samples, especially ciliates of the order Euplotida. The highest abundance was always found in the lowermost 5 cm of the ice cores, nevertheless sympagic meiofauna was not restricted to that part of the ice. Integrated meiofauna abundance ranged between 41 and 4,738 × 10 2 Ind. m -2 and was highest in the fast ice in early May. Differences between pack and fast ice in terms of integrated meiofauna communities and vertical distribution were not significant, while the analysis of the bottom-ice sections indicated both a temporal development and ice-type-specific differences. © 2011 Springer-Verlag. info:eu-repo/semantics/published Article in Journal/Newspaper Amundsen Gulf Arctic Beaufort Sea Calanus hyperboreus Polar Biology Sea ice Copepods DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Arctic |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Sciences exactes et naturelles |
spellingShingle |
Sciences exactes et naturelles Marquardt, M.a Kramer, M. Carnat, Gauthier Werner, I. A. Vertical distribution of sympagic meiofauna in sea ice in the Canadian Beaufort Sea |
topic_facet |
Sciences exactes et naturelles |
description |
This is the first study to determine vertical distribution patterns of sympagic meiofauna, including metazoans, protozoans and eggs <20 μm, in the Amundsen Gulf (southeastern Beaufort Sea, Arctic). Full sea-ice cores were sampled from mid of March to end of May 2008 (Circumpolar Flaw Lead system study). Investigations were performed on first-year ice from three pack- and three fast-ice stations. Additionally, 5-cm bottom-ice sections were sampled at 13 pack-ice and 5 fast-ice stations. The metazoan community was composed of nematodes, rotifers, copepods, copepod nauplii, platyhelminthes and a few rare taxa such as mollusks, cnidarians and nemerteans. High numbers of eggs, between 50 and 2,188 eggs L -1, particularly of nematodes and copepods, were present in the ice. Investigations revealed also eggs of the pelagic species Calanus hyperboreus and Sagitta spp. within the ice, so that further research is needed to clarify whether more organisms than expected might use this habitat as a reproduction ground. Many different morphotypes of protozoans were observed in the samples, especially ciliates of the order Euplotida. The highest abundance was always found in the lowermost 5 cm of the ice cores, nevertheless sympagic meiofauna was not restricted to that part of the ice. Integrated meiofauna abundance ranged between 41 and 4,738 × 10 2 Ind. m -2 and was highest in the fast ice in early May. Differences between pack and fast ice in terms of integrated meiofauna communities and vertical distribution were not significant, while the analysis of the bottom-ice sections indicated both a temporal development and ice-type-specific differences. © 2011 Springer-Verlag. info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Marquardt, M.a Kramer, M. Carnat, Gauthier Werner, I. A. |
author_facet |
Marquardt, M.a Kramer, M. Carnat, Gauthier Werner, I. A. |
author_sort |
Marquardt, M.a |
title |
Vertical distribution of sympagic meiofauna in sea ice in the Canadian Beaufort Sea |
title_short |
Vertical distribution of sympagic meiofauna in sea ice in the Canadian Beaufort Sea |
title_full |
Vertical distribution of sympagic meiofauna in sea ice in the Canadian Beaufort Sea |
title_fullStr |
Vertical distribution of sympagic meiofauna in sea ice in the Canadian Beaufort Sea |
title_full_unstemmed |
Vertical distribution of sympagic meiofauna in sea ice in the Canadian Beaufort Sea |
title_sort |
vertical distribution of sympagic meiofauna in sea ice in the canadian beaufort sea |
publishDate |
2011 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/154486 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Amundsen Gulf Arctic Beaufort Sea Calanus hyperboreus Polar Biology Sea ice Copepods |
genre_facet |
Amundsen Gulf Arctic Beaufort Sea Calanus hyperboreus Polar Biology Sea ice Copepods |
op_source |
Polar Biology, 34 (12 |
op_relation |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/154486 |
_version_ |
1766368044264718336 |