Copepods in sea ice of the western Weddell Sea during austral spring 2004
In the framework of the R.V. Polarstern expedition “Ice station POLarstern” (ISPOL) spatial and temporal trends in composition, abundance and age structure of sea ice inhabiting copepods were investigated in the western Weddell Sea during the transition from the spring to the summer state. For the s...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2008
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Online Access: | https://oceanrep.geomar.de/id/eprint/27274/ https://oceanrep.geomar.de/id/eprint/27274/1/Copepods.pdf https://doi.org/10.1016/j.dsr2.2007.12.014 |
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ftoceanrep:oai:oceanrep.geomar.de:27274 2023-05-15T13:40:22+02:00 Copepods in sea ice of the western Weddell Sea during austral spring 2004 Schnack-Schiel, Sigrid B. Haas, Christian Michels, Jan Mizdalski, Elke Schünemann, Henrike Steffens, Matthias Thomas, David N. 2008 text https://oceanrep.geomar.de/id/eprint/27274/ https://oceanrep.geomar.de/id/eprint/27274/1/Copepods.pdf https://doi.org/10.1016/j.dsr2.2007.12.014 en eng Elsevier https://oceanrep.geomar.de/id/eprint/27274/1/Copepods.pdf Schnack-Schiel, S. B., Haas, C., Michels, J., Mizdalski, E., Schünemann, H., Steffens, M. and Thomas, D. N. (2008) Copepods in sea ice of the western Weddell Sea during austral spring 2004. Deep Sea Research Part II: Topical Studies in Oceanography, 55 (8-9). pp. 1056-1067. DOI 10.1016/j.dsr2.2007.12.014 <https://doi.org/10.1016/j.dsr2.2007.12.014>. doi:10.1016/j.dsr2.2007.12.014 Article PeerReviewed 2008 ftoceanrep https://doi.org/10.1016/j.dsr2.2007.12.014 2023-04-07T15:17:18Z In the framework of the R.V. Polarstern expedition “Ice station POLarstern” (ISPOL) spatial and temporal trends in composition, abundance and age structure of sea ice inhabiting copepods were investigated in the western Weddell Sea during the transition from the spring to the summer state. For the spatial scale, sea-ice coring was performed at six locations on a transect from the ice edge to the ice-drift station between 14 and 24 November 2004. The temporal changes were investigated in a time series study on a drifting sea-ice floe from 29 November to 30 December 2004. A relatively large number of copepod species (15) were found in the ice with a higher number at the time station (13) than at the transect (9). Drescheriella spp. was by far the most abundant taxon encountered in the sea ice throughout the present study (72–87%). On the transect, Idomene antarctica ranked second in abundance (7%) followed by Stephos longipes (2%) and Ectinosoma sp. (2%). In contrast, Diarthrode cf. lilacinus, which was not found on the transect, was the second most abundant species (11%) at the time station, followed by I. antarctica (9%), Ectinosoma sp. (6%) and S. longipes (1%). Naupliar stages dominated the populations of Drescheriella spp. and S. longipes both on the transect and during the time series. The Ectinosoma sp. population was dominated by nauplii only at the stations of the transect, while copepodite stages made up the largest fraction during the time series. Copepodids always predominated the I. antarctica populations, and it was the only species in which adults occurred in high densities contributing significantly to the abundance. Only Drescheriella spp. and S. longipes occurred throughout the sea-ice cores, while the occurrence of all other species was restricted to the bottom layer of the ice. The distribution of all species was very patchy and varied greatly between the sampling sites. Article in Journal/Newspaper Antarc* Antarctica Sea ice Weddell Sea Copepods OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Austral Weddell Weddell Sea Deep Sea Research Part II: Topical Studies in Oceanography 55 8-9 1056 1067 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
In the framework of the R.V. Polarstern expedition “Ice station POLarstern” (ISPOL) spatial and temporal trends in composition, abundance and age structure of sea ice inhabiting copepods were investigated in the western Weddell Sea during the transition from the spring to the summer state. For the spatial scale, sea-ice coring was performed at six locations on a transect from the ice edge to the ice-drift station between 14 and 24 November 2004. The temporal changes were investigated in a time series study on a drifting sea-ice floe from 29 November to 30 December 2004. A relatively large number of copepod species (15) were found in the ice with a higher number at the time station (13) than at the transect (9). Drescheriella spp. was by far the most abundant taxon encountered in the sea ice throughout the present study (72–87%). On the transect, Idomene antarctica ranked second in abundance (7%) followed by Stephos longipes (2%) and Ectinosoma sp. (2%). In contrast, Diarthrode cf. lilacinus, which was not found on the transect, was the second most abundant species (11%) at the time station, followed by I. antarctica (9%), Ectinosoma sp. (6%) and S. longipes (1%). Naupliar stages dominated the populations of Drescheriella spp. and S. longipes both on the transect and during the time series. The Ectinosoma sp. population was dominated by nauplii only at the stations of the transect, while copepodite stages made up the largest fraction during the time series. Copepodids always predominated the I. antarctica populations, and it was the only species in which adults occurred in high densities contributing significantly to the abundance. Only Drescheriella spp. and S. longipes occurred throughout the sea-ice cores, while the occurrence of all other species was restricted to the bottom layer of the ice. The distribution of all species was very patchy and varied greatly between the sampling sites. |
format |
Article in Journal/Newspaper |
author |
Schnack-Schiel, Sigrid B. Haas, Christian Michels, Jan Mizdalski, Elke Schünemann, Henrike Steffens, Matthias Thomas, David N. |
spellingShingle |
Schnack-Schiel, Sigrid B. Haas, Christian Michels, Jan Mizdalski, Elke Schünemann, Henrike Steffens, Matthias Thomas, David N. Copepods in sea ice of the western Weddell Sea during austral spring 2004 |
author_facet |
Schnack-Schiel, Sigrid B. Haas, Christian Michels, Jan Mizdalski, Elke Schünemann, Henrike Steffens, Matthias Thomas, David N. |
author_sort |
Schnack-Schiel, Sigrid B. |
title |
Copepods in sea ice of the western Weddell Sea during austral spring 2004 |
title_short |
Copepods in sea ice of the western Weddell Sea during austral spring 2004 |
title_full |
Copepods in sea ice of the western Weddell Sea during austral spring 2004 |
title_fullStr |
Copepods in sea ice of the western Weddell Sea during austral spring 2004 |
title_full_unstemmed |
Copepods in sea ice of the western Weddell Sea during austral spring 2004 |
title_sort |
copepods in sea ice of the western weddell sea during austral spring 2004 |
publisher |
Elsevier |
publishDate |
2008 |
url |
https://oceanrep.geomar.de/id/eprint/27274/ https://oceanrep.geomar.de/id/eprint/27274/1/Copepods.pdf https://doi.org/10.1016/j.dsr2.2007.12.014 |
geographic |
Austral Weddell Weddell Sea |
geographic_facet |
Austral Weddell Weddell Sea |
genre |
Antarc* Antarctica Sea ice Weddell Sea Copepods |
genre_facet |
Antarc* Antarctica Sea ice Weddell Sea Copepods |
op_relation |
https://oceanrep.geomar.de/id/eprint/27274/1/Copepods.pdf Schnack-Schiel, S. B., Haas, C., Michels, J., Mizdalski, E., Schünemann, H., Steffens, M. and Thomas, D. N. (2008) Copepods in sea ice of the western Weddell Sea during austral spring 2004. Deep Sea Research Part II: Topical Studies in Oceanography, 55 (8-9). pp. 1056-1067. DOI 10.1016/j.dsr2.2007.12.014 <https://doi.org/10.1016/j.dsr2.2007.12.014>. doi:10.1016/j.dsr2.2007.12.014 |
op_doi |
https://doi.org/10.1016/j.dsr2.2007.12.014 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
55 |
container_issue |
8-9 |
container_start_page |
1056 |
op_container_end_page |
1067 |
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1766132792110874624 |