Abundance, population structure and vertical distribution of dominant calanoid copepods on the eastern Weddell Sea shelf during a spring phytoplankton bloom
The main emphasis of this study was to analyse the short-term development of abundance, population structure and vertical distribution of the dominant calanoid copepods during a phytoplankton bloom in the coastal area of the eastern Weddell Sea in December 2003. Microcalanus pygmaeus was by far the...
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2012
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ftoceanrep:oai:oceanrep.geomar.de:27134 2023-05-15T18:02:02+02:00 Abundance, population structure and vertical distribution of dominant calanoid copepods on the eastern Weddell Sea shelf during a spring phytoplankton bloom Michels, Jan Schnack-Schiel, Sigrid B. Pasternak, Anna Mizdalski, Elke Isla, E. Gerdes, Dieter 2012 text https://oceanrep.geomar.de/id/eprint/27134/ https://oceanrep.geomar.de/id/eprint/27134/1/art_10.1007_s00300-011-1083-1.pdf https://doi.org/10.1007/s00300-011-1083-1 en eng Springer https://oceanrep.geomar.de/id/eprint/27134/1/art_10.1007_s00300-011-1083-1.pdf Michels, J., Schnack-Schiel, S. B., Pasternak, A., Mizdalski, E., Isla, E. and Gerdes, D. (2012) Abundance, population structure and vertical distribution of dominant calanoid copepods on the eastern Weddell Sea shelf during a spring phytoplankton bloom. Polar Biology, 35 (3). pp. 369-386. DOI 10.1007/s00300-011-1083-1 <https://doi.org/10.1007/s00300-011-1083-1>. doi:10.1007/s00300-011-1083-1 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2012 ftoceanrep https://doi.org/10.1007/s00300-011-1083-1 2023-04-07T15:17:03Z The main emphasis of this study was to analyse the short-term development of abundance, population structure and vertical distribution of the dominant calanoid copepods during a phytoplankton bloom in the coastal area of the eastern Weddell Sea in December 2003. Microcalanus pygmaeus was by far the most abundant calanoid species. Metridia gerlachei, Ctenocalanus citer, Calanoides acutus, Calanus propinquus and the ice-associated Stephos longipes were also present in considerable proportions. The observed changes in the population characteristics and parameters of these species are described in detail and discussed in the context of the spring phytoplankton bloom. A conspicuous event occurring during the final stage of the study was the development of a strong storm. While the results suggest that this storm did not have any considerable influence on the populations of all other investigated copepod species, it very likely caused pronounced changes in the S. longipes population present in the water column. Before the storm, S. longipes was found primarily in the upper 100 m of the water column, and its population was dominated by adults (mean proportion = 41%) and the copepodite stage I (mean proportion = 30%). After the storm, the abundance increased considerably, and the copepodite stage I contributed by far the largest proportion (53%) of the total population indicating that the early copepodite stages probably had been released from the sea ice into the under ice water layer due to ice break-up and ice melt processes caused by the storm. Article in Journal/Newspaper Polar Biology Sea ice Weddell Sea Copepods OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Weddell Weddell Sea Polar Biology 35 3 369 386 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The main emphasis of this study was to analyse the short-term development of abundance, population structure and vertical distribution of the dominant calanoid copepods during a phytoplankton bloom in the coastal area of the eastern Weddell Sea in December 2003. Microcalanus pygmaeus was by far the most abundant calanoid species. Metridia gerlachei, Ctenocalanus citer, Calanoides acutus, Calanus propinquus and the ice-associated Stephos longipes were also present in considerable proportions. The observed changes in the population characteristics and parameters of these species are described in detail and discussed in the context of the spring phytoplankton bloom. A conspicuous event occurring during the final stage of the study was the development of a strong storm. While the results suggest that this storm did not have any considerable influence on the populations of all other investigated copepod species, it very likely caused pronounced changes in the S. longipes population present in the water column. Before the storm, S. longipes was found primarily in the upper 100 m of the water column, and its population was dominated by adults (mean proportion = 41%) and the copepodite stage I (mean proportion = 30%). After the storm, the abundance increased considerably, and the copepodite stage I contributed by far the largest proportion (53%) of the total population indicating that the early copepodite stages probably had been released from the sea ice into the under ice water layer due to ice break-up and ice melt processes caused by the storm. |
format |
Article in Journal/Newspaper |
author |
Michels, Jan Schnack-Schiel, Sigrid B. Pasternak, Anna Mizdalski, Elke Isla, E. Gerdes, Dieter |
spellingShingle |
Michels, Jan Schnack-Schiel, Sigrid B. Pasternak, Anna Mizdalski, Elke Isla, E. Gerdes, Dieter Abundance, population structure and vertical distribution of dominant calanoid copepods on the eastern Weddell Sea shelf during a spring phytoplankton bloom |
author_facet |
Michels, Jan Schnack-Schiel, Sigrid B. Pasternak, Anna Mizdalski, Elke Isla, E. Gerdes, Dieter |
author_sort |
Michels, Jan |
title |
Abundance, population structure and vertical distribution of dominant calanoid copepods on the eastern Weddell Sea shelf during a spring phytoplankton bloom |
title_short |
Abundance, population structure and vertical distribution of dominant calanoid copepods on the eastern Weddell Sea shelf during a spring phytoplankton bloom |
title_full |
Abundance, population structure and vertical distribution of dominant calanoid copepods on the eastern Weddell Sea shelf during a spring phytoplankton bloom |
title_fullStr |
Abundance, population structure and vertical distribution of dominant calanoid copepods on the eastern Weddell Sea shelf during a spring phytoplankton bloom |
title_full_unstemmed |
Abundance, population structure and vertical distribution of dominant calanoid copepods on the eastern Weddell Sea shelf during a spring phytoplankton bloom |
title_sort |
abundance, population structure and vertical distribution of dominant calanoid copepods on the eastern weddell sea shelf during a spring phytoplankton bloom |
publisher |
Springer |
publishDate |
2012 |
url |
https://oceanrep.geomar.de/id/eprint/27134/ https://oceanrep.geomar.de/id/eprint/27134/1/art_10.1007_s00300-011-1083-1.pdf https://doi.org/10.1007/s00300-011-1083-1 |
geographic |
Weddell Weddell Sea |
geographic_facet |
Weddell Weddell Sea |
genre |
Polar Biology Sea ice Weddell Sea Copepods |
genre_facet |
Polar Biology Sea ice Weddell Sea Copepods |
op_relation |
https://oceanrep.geomar.de/id/eprint/27134/1/art_10.1007_s00300-011-1083-1.pdf Michels, J., Schnack-Schiel, S. B., Pasternak, A., Mizdalski, E., Isla, E. and Gerdes, D. (2012) Abundance, population structure and vertical distribution of dominant calanoid copepods on the eastern Weddell Sea shelf during a spring phytoplankton bloom. Polar Biology, 35 (3). pp. 369-386. DOI 10.1007/s00300-011-1083-1 <https://doi.org/10.1007/s00300-011-1083-1>. doi:10.1007/s00300-011-1083-1 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00300-011-1083-1 |
container_title |
Polar Biology |
container_volume |
35 |
container_issue |
3 |
container_start_page |
369 |
op_container_end_page |
386 |
_version_ |
1766171684345217024 |