Escape mortality of cod, saithe, and haddock in a Barents Sea trawl fishery
<qd> Ingólfsson, Ó. A., Soldal, A. V., Huse, I., and Breen, M. 2007. Escape mortality of cod, saithe, and haddock in a Barents Sea trawl fishery. – ICES Journal of Marine Science, 64: 000–000. </qd>We investigated the survival of gadoid fish in the Barents Sea escaping from a demersal tr...
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fthighwire:oai:open-archive.highwire.org:icesjms:fsm150v1 2023-05-15T15:38:28+02:00 Escape mortality of cod, saithe, and haddock in a Barents Sea trawl fishery Ingólfsson, Ólafur Arnar Soldal, Aud Vold Huse, Irene Breen, Mike 2007-10-04 03:21:01.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/fsm150v1 https://doi.org/10.1093/icesjms/fsm150 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/fsm150v1 http://dx.doi.org/10.1093/icesjms/fsm150 Copyright (C) 2007, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Article TEXT 2007 fthighwire https://doi.org/10.1093/icesjms/fsm150 2013-05-26T22:25:41Z <qd> Ingólfsson, Ó. A., Soldal, A. V., Huse, I., and Breen, M. 2007. Escape mortality of cod, saithe, and haddock in a Barents Sea trawl fishery. – ICES Journal of Marine Science, 64: 000–000. </qd>We investigated the survival of gadoid fish in the Barents Sea escaping from a demersal trawl during commercial fishing conditions, with and without a sorting grid, at high and low levels of fishing intensity. The mortality of cod and saithe was negligible and unrelated to experimental conditions. Haddock mortality was generally greater than observed in earlier experiments and inversely related to fish length. Any possible effects of experimental conditions were hidden by large variability in the observed rates of mortality. We conclude that the observed mortality of haddock is confounded by methodological problems, particularly the instability of the observation cages, and does not reflect the true escape mortality. Cod and saithe are capable of surviving the stress of passage through, and escape from, the trawl, whereas haddock are more vulnerable, despite being a closely related species. Text Barents Sea HighWire Press (Stanford University) Barents Sea Breen ENVELOPE(13.338,13.338,66.778,66.778) ICES Journal of Marine Science 64 9 1836 1844 |
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HighWire Press (Stanford University) |
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English |
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Article Ingólfsson, Ólafur Arnar Soldal, Aud Vold Huse, Irene Breen, Mike Escape mortality of cod, saithe, and haddock in a Barents Sea trawl fishery |
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Article |
description |
<qd> Ingólfsson, Ó. A., Soldal, A. V., Huse, I., and Breen, M. 2007. Escape mortality of cod, saithe, and haddock in a Barents Sea trawl fishery. – ICES Journal of Marine Science, 64: 000–000. </qd>We investigated the survival of gadoid fish in the Barents Sea escaping from a demersal trawl during commercial fishing conditions, with and without a sorting grid, at high and low levels of fishing intensity. The mortality of cod and saithe was negligible and unrelated to experimental conditions. Haddock mortality was generally greater than observed in earlier experiments and inversely related to fish length. Any possible effects of experimental conditions were hidden by large variability in the observed rates of mortality. We conclude that the observed mortality of haddock is confounded by methodological problems, particularly the instability of the observation cages, and does not reflect the true escape mortality. Cod and saithe are capable of surviving the stress of passage through, and escape from, the trawl, whereas haddock are more vulnerable, despite being a closely related species. |
format |
Text |
author |
Ingólfsson, Ólafur Arnar Soldal, Aud Vold Huse, Irene Breen, Mike |
author_facet |
Ingólfsson, Ólafur Arnar Soldal, Aud Vold Huse, Irene Breen, Mike |
author_sort |
Ingólfsson, Ólafur Arnar |
title |
Escape mortality of cod, saithe, and haddock in a Barents Sea trawl fishery |
title_short |
Escape mortality of cod, saithe, and haddock in a Barents Sea trawl fishery |
title_full |
Escape mortality of cod, saithe, and haddock in a Barents Sea trawl fishery |
title_fullStr |
Escape mortality of cod, saithe, and haddock in a Barents Sea trawl fishery |
title_full_unstemmed |
Escape mortality of cod, saithe, and haddock in a Barents Sea trawl fishery |
title_sort |
escape mortality of cod, saithe, and haddock in a barents sea trawl fishery |
publisher |
Oxford University Press |
publishDate |
2007 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/fsm150v1 https://doi.org/10.1093/icesjms/fsm150 |
long_lat |
ENVELOPE(13.338,13.338,66.778,66.778) |
geographic |
Barents Sea Breen |
geographic_facet |
Barents Sea Breen |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/fsm150v1 http://dx.doi.org/10.1093/icesjms/fsm150 |
op_rights |
Copyright (C) 2007, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fsm150 |
container_title |
ICES Journal of Marine Science |
container_volume |
64 |
container_issue |
9 |
container_start_page |
1836 |
op_container_end_page |
1844 |
_version_ |
1766369423739846656 |