Antarctic krill under perennial sea ice in the western Weddell Sea
The results of underwater observations and sampling of krill ( Euphausia superba ) in the western Weddell Sea during the joint Russian-USA Ice Station Weddell-1 Expedition (11 February–9 June 1992) are presented. Krill was sampled from the same large ice floe composed of both 1- and 2-year ice as it...
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Language: | English |
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Cambridge University Press (CUP)
1996
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Online Access: | http://dx.doi.org/10.1017/s0954102096000491 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102096000491 |
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crcambridgeupr:10.1017/s0954102096000491 2024-04-07T07:47:29+00:00 Antarctic krill under perennial sea ice in the western Weddell Sea Melnikov, Igor A. Spiridonov, Vassily A. 1996 http://dx.doi.org/10.1017/s0954102096000491 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102096000491 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 8, issue 4, page 323-329 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 1996 crcambridgeupr https://doi.org/10.1017/s0954102096000491 2024-03-08T00:36:20Z The results of underwater observations and sampling of krill ( Euphausia superba ) in the western Weddell Sea during the joint Russian-USA Ice Station Weddell-1 Expedition (11 February–9 June 1992) are presented. Krill was sampled from the same large ice floe composed of both 1- and 2-year ice as it drifted northward for a distance of c. 700 km. Abundance estimates for krill under this floe were in the range 0.1–6.25 ind m −2 . Krill aggregate in areas where rafting of ice floes and formation of new ice occur, or around a protected diving hole. The krill sampled consisted mainly of furcilia 6 and post-larvae which did not belong to the 0+ group originating in this (1991–92) year, but presumably hatched in the summer season of 1990–91 and developed very slowly so that at the end of the following summer season, larval stages were still present in the population. No increase of the mean krill size was observed during 2.5 months of observation. The role of larval advection for the maintenance of krill population in the Weddell Sea is discussed. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctic Science Euphausia superba Sea ice Weddell Sea Cambridge University Press Antarctic Weddell Sea Weddell Antarctic Science 8 4 323 329 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Melnikov, Igor A. Spiridonov, Vassily A. Antarctic krill under perennial sea ice in the western Weddell Sea |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
The results of underwater observations and sampling of krill ( Euphausia superba ) in the western Weddell Sea during the joint Russian-USA Ice Station Weddell-1 Expedition (11 February–9 June 1992) are presented. Krill was sampled from the same large ice floe composed of both 1- and 2-year ice as it drifted northward for a distance of c. 700 km. Abundance estimates for krill under this floe were in the range 0.1–6.25 ind m −2 . Krill aggregate in areas where rafting of ice floes and formation of new ice occur, or around a protected diving hole. The krill sampled consisted mainly of furcilia 6 and post-larvae which did not belong to the 0+ group originating in this (1991–92) year, but presumably hatched in the summer season of 1990–91 and developed very slowly so that at the end of the following summer season, larval stages were still present in the population. No increase of the mean krill size was observed during 2.5 months of observation. The role of larval advection for the maintenance of krill population in the Weddell Sea is discussed. |
format |
Article in Journal/Newspaper |
author |
Melnikov, Igor A. Spiridonov, Vassily A. |
author_facet |
Melnikov, Igor A. Spiridonov, Vassily A. |
author_sort |
Melnikov, Igor A. |
title |
Antarctic krill under perennial sea ice in the western Weddell Sea |
title_short |
Antarctic krill under perennial sea ice in the western Weddell Sea |
title_full |
Antarctic krill under perennial sea ice in the western Weddell Sea |
title_fullStr |
Antarctic krill under perennial sea ice in the western Weddell Sea |
title_full_unstemmed |
Antarctic krill under perennial sea ice in the western Weddell Sea |
title_sort |
antarctic krill under perennial sea ice in the western weddell sea |
publisher |
Cambridge University Press (CUP) |
publishDate |
1996 |
url |
http://dx.doi.org/10.1017/s0954102096000491 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102096000491 |
geographic |
Antarctic Weddell Sea Weddell |
geographic_facet |
Antarctic Weddell Sea Weddell |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Science Euphausia superba Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Science Euphausia superba Sea ice Weddell Sea |
op_source |
Antarctic Science volume 8, issue 4, page 323-329 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102096000491 |
container_title |
Antarctic Science |
container_volume |
8 |
container_issue |
4 |
container_start_page |
323 |
op_container_end_page |
329 |
_version_ |
1795674607049506816 |