Distribution and abundance of overwintering Calanus finmarchicus in the Faroe–Shetland Channel
The distribution and abundance of overwintering Calanus finmarchicus in the Faroe–Shetland Channel was studied during December 1994 and January 1995. Maximum abundance of animals in the Channel was approximately 50 000 m −2 , with a peak concentration of 627 m −3 at a depth of 930 m. Copepodite stag...
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Language: | English |
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1999
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Online Access: | http://dx.doi.org/10.1046/j.1365-2419.1999.00012.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2419.1999.00012.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2419.1999.00012.x |
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crwiley:10.1046/j.1365-2419.1999.00012.x 2024-06-02T08:01:52+00:00 Distribution and abundance of overwintering Calanus finmarchicus in the Faroe–Shetland Channel Heath, M.R. Jónasdóttir, S.H. 1999 http://dx.doi.org/10.1046/j.1365-2419.1999.00012.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2419.1999.00012.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2419.1999.00012.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Oceanography volume 8, issue s1, page 40-60 ISSN 1054-6006 1365-2419 journal-article 1999 crwiley https://doi.org/10.1046/j.1365-2419.1999.00012.x 2024-05-03T11:20:31Z The distribution and abundance of overwintering Calanus finmarchicus in the Faroe–Shetland Channel was studied during December 1994 and January 1995. Maximum abundance of animals in the Channel was approximately 50 000 m −2 , with a peak concentration of 627 m −3 at a depth of 930 m. Copepodite stages IV and V accounted for > 98% of the population. A clear association was found between the horizontal and vertical distribution of animals and the Arctic water masses in the bottom of the Faroe–Shetland Channel. The Wyville–Thomson Ridge formed a barrier to the southern distribution of Arctic waters and the abundance of overwintering C. finmarchicus was 25 times lower to the south of the Ridge than to the north. Spatial variability in lipid content and composition indicated that overwintering C. finmarchicus in the southern Norwegian Sea were in poorer condition with respect to wax ester content, and in a more advanced state of emergence from overwintering, than the animals within the Channel. The overwintering stock in the Channel probably originated from the Norwegian Sea or from north of the Faroe Islands. The Faroe–Shetland Channel is an important source of animals advected into the northern North Sea in the spring (March/April). The population abundance in the Faroe–Shetland Channel was estimated to be 4.5 × 10 14 individuals, which is more than adequate to account for the mean concentration of adult stages observed in the northern North Sea in April. Article in Journal/Newspaper Arctic Calanus finmarchicus Faroe Islands Norwegian Sea Wiley Online Library Arctic Norwegian Sea Faroe Islands Wyville Thomson Ridge ENVELOPE(-7.500,-7.500,60.250,60.250) Wyville-Thomson Ridge ENVELOPE(-7.250,-7.250,60.000,60.000) Fisheries Oceanography 8 40 60 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
The distribution and abundance of overwintering Calanus finmarchicus in the Faroe–Shetland Channel was studied during December 1994 and January 1995. Maximum abundance of animals in the Channel was approximately 50 000 m −2 , with a peak concentration of 627 m −3 at a depth of 930 m. Copepodite stages IV and V accounted for > 98% of the population. A clear association was found between the horizontal and vertical distribution of animals and the Arctic water masses in the bottom of the Faroe–Shetland Channel. The Wyville–Thomson Ridge formed a barrier to the southern distribution of Arctic waters and the abundance of overwintering C. finmarchicus was 25 times lower to the south of the Ridge than to the north. Spatial variability in lipid content and composition indicated that overwintering C. finmarchicus in the southern Norwegian Sea were in poorer condition with respect to wax ester content, and in a more advanced state of emergence from overwintering, than the animals within the Channel. The overwintering stock in the Channel probably originated from the Norwegian Sea or from north of the Faroe Islands. The Faroe–Shetland Channel is an important source of animals advected into the northern North Sea in the spring (March/April). The population abundance in the Faroe–Shetland Channel was estimated to be 4.5 × 10 14 individuals, which is more than adequate to account for the mean concentration of adult stages observed in the northern North Sea in April. |
format |
Article in Journal/Newspaper |
author |
Heath, M.R. Jónasdóttir, S.H. |
spellingShingle |
Heath, M.R. Jónasdóttir, S.H. Distribution and abundance of overwintering Calanus finmarchicus in the Faroe–Shetland Channel |
author_facet |
Heath, M.R. Jónasdóttir, S.H. |
author_sort |
Heath, M.R. |
title |
Distribution and abundance of overwintering Calanus finmarchicus in the Faroe–Shetland Channel |
title_short |
Distribution and abundance of overwintering Calanus finmarchicus in the Faroe–Shetland Channel |
title_full |
Distribution and abundance of overwintering Calanus finmarchicus in the Faroe–Shetland Channel |
title_fullStr |
Distribution and abundance of overwintering Calanus finmarchicus in the Faroe–Shetland Channel |
title_full_unstemmed |
Distribution and abundance of overwintering Calanus finmarchicus in the Faroe–Shetland Channel |
title_sort |
distribution and abundance of overwintering calanus finmarchicus in the faroe–shetland channel |
publisher |
Wiley |
publishDate |
1999 |
url |
http://dx.doi.org/10.1046/j.1365-2419.1999.00012.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-2419.1999.00012.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-2419.1999.00012.x |
long_lat |
ENVELOPE(-7.500,-7.500,60.250,60.250) ENVELOPE(-7.250,-7.250,60.000,60.000) |
geographic |
Arctic Norwegian Sea Faroe Islands Wyville Thomson Ridge Wyville-Thomson Ridge |
geographic_facet |
Arctic Norwegian Sea Faroe Islands Wyville Thomson Ridge Wyville-Thomson Ridge |
genre |
Arctic Calanus finmarchicus Faroe Islands Norwegian Sea |
genre_facet |
Arctic Calanus finmarchicus Faroe Islands Norwegian Sea |
op_source |
Fisheries Oceanography volume 8, issue s1, page 40-60 ISSN 1054-6006 1365-2419 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-2419.1999.00012.x |
container_title |
Fisheries Oceanography |
container_volume |
8 |
container_start_page |
40 |
op_container_end_page |
60 |
_version_ |
1800746353873125376 |