The influence of freshwater discharge on the distribution of zooplankton in the southern Kara Sea
Zooplankton was collected on 2 cruises to the southern Kara Sea to study the effect of the freshwater outflow of the rivers Ob and Yenisej on plankton distribution. Calanoid copepods dominated the composition with more than 75% of all specimens collected in both years, Drepanopus bungei was the most...
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ftawi:oai:epic.awi.de:4793 2023-09-05T13:20:47+02:00 The influence of freshwater discharge on the distribution of zooplankton in the southern Kara Sea Fetzer, Ingo Hirche, Hans-Jürgen Kolosova, E. G. 2002 application/pdf https://epic.awi.de/id/eprint/4793/ https://epic.awi.de/id/eprint/4793/1/I.F2001a.pdf https://hdl.handle.net/10013/epic.15361 https://hdl.handle.net/10013/epic.15361.d001 unknown https://epic.awi.de/id/eprint/4793/1/I.F2001a.pdf https://hdl.handle.net/10013/epic.15361.d001 Fetzer, I. , Hirche, H. J. and Kolosova, E. G. (2002) The influence of freshwater discharge on the distribution of zooplankton in the southern Kara Sea , Polar Biology 25:, pp. 404-415 . hdl:10013/epic.15361 EPIC3Polar Biology 25:, pp. 404-415 Article isiRev 2002 ftawi 2023-08-22T19:44:58Z Zooplankton was collected on 2 cruises to the southern Kara Sea to study the effect of the freshwater outflow of the rivers Ob and Yenisej on plankton distribution. Calanoid copepods dominated the composition with more than 75% of all specimens collected in both years, Drepanopus bungei was the most abundant species. Species composition showed a wide spectrum from freshwater to marine species. The abundance and community composition of the zooplankton communities followed closely the hydrographic pattern along a gradient from the inner to the outer estuaries, as revealed by Cluster analysis and Multi Dimensional Scaling. There were also differences in species composition and abundance between the two rivers. The stable brackish surface layer created a large distribution area for riverine species, while in the underlying marine water masses oceanic species penetrated far into the estuaries. In 1997 this area was considerably larger, probably due to a higher freshwater discharge. During the 1999 cruise, which took place 3 weeks earlier, salinities were generally higher. Both species composition and overall abundances were higher in 1999 than in 1997 especially due to the enormous increase of Limnocalanus marcurus and Pseudocalanus major Article in Journal/Newspaper Kara Sea Polar Biology Copepods Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Kara Sea |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Zooplankton was collected on 2 cruises to the southern Kara Sea to study the effect of the freshwater outflow of the rivers Ob and Yenisej on plankton distribution. Calanoid copepods dominated the composition with more than 75% of all specimens collected in both years, Drepanopus bungei was the most abundant species. Species composition showed a wide spectrum from freshwater to marine species. The abundance and community composition of the zooplankton communities followed closely the hydrographic pattern along a gradient from the inner to the outer estuaries, as revealed by Cluster analysis and Multi Dimensional Scaling. There were also differences in species composition and abundance between the two rivers. The stable brackish surface layer created a large distribution area for riverine species, while in the underlying marine water masses oceanic species penetrated far into the estuaries. In 1997 this area was considerably larger, probably due to a higher freshwater discharge. During the 1999 cruise, which took place 3 weeks earlier, salinities were generally higher. Both species composition and overall abundances were higher in 1999 than in 1997 especially due to the enormous increase of Limnocalanus marcurus and Pseudocalanus major |
format |
Article in Journal/Newspaper |
author |
Fetzer, Ingo Hirche, Hans-Jürgen Kolosova, E. G. |
spellingShingle |
Fetzer, Ingo Hirche, Hans-Jürgen Kolosova, E. G. The influence of freshwater discharge on the distribution of zooplankton in the southern Kara Sea |
author_facet |
Fetzer, Ingo Hirche, Hans-Jürgen Kolosova, E. G. |
author_sort |
Fetzer, Ingo |
title |
The influence of freshwater discharge on the distribution of zooplankton in the southern Kara Sea |
title_short |
The influence of freshwater discharge on the distribution of zooplankton in the southern Kara Sea |
title_full |
The influence of freshwater discharge on the distribution of zooplankton in the southern Kara Sea |
title_fullStr |
The influence of freshwater discharge on the distribution of zooplankton in the southern Kara Sea |
title_full_unstemmed |
The influence of freshwater discharge on the distribution of zooplankton in the southern Kara Sea |
title_sort |
influence of freshwater discharge on the distribution of zooplankton in the southern kara sea |
publishDate |
2002 |
url |
https://epic.awi.de/id/eprint/4793/ https://epic.awi.de/id/eprint/4793/1/I.F2001a.pdf https://hdl.handle.net/10013/epic.15361 https://hdl.handle.net/10013/epic.15361.d001 |
geographic |
Kara Sea |
geographic_facet |
Kara Sea |
genre |
Kara Sea Polar Biology Copepods |
genre_facet |
Kara Sea Polar Biology Copepods |
op_source |
EPIC3Polar Biology 25:, pp. 404-415 |
op_relation |
https://epic.awi.de/id/eprint/4793/1/I.F2001a.pdf https://hdl.handle.net/10013/epic.15361.d001 Fetzer, I. , Hirche, H. J. and Kolosova, E. G. (2002) The influence of freshwater discharge on the distribution of zooplankton in the southern Kara Sea , Polar Biology 25:, pp. 404-415 . hdl:10013/epic.15361 |
_version_ |
1776201420822806528 |