Possible reductions in Barents Sea surveys a test of its influence on Northeast Arctic cod assessment quality ...
No abstracts are to be cited without prior reference to the author.The problem of funding could lead to fewer and less frequent surveys. This study evaluated how such a reduction may affect the quality of Northeast Arctic (NEA) cod stock assessment, which relies on the results of survey data. Based...
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ASC 2012 - Theme session F
2024
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ftdatacite:10.17895/ices.pub.24973965 2024-02-27T08:36:26+00:00 Possible reductions in Barents Sea surveys a test of its influence on Northeast Arctic cod assessment quality ... Kovalev, Yury Chetyrkin, Anatoly 2024 https://dx.doi.org/10.17895/ices.pub.24973965 https://ices-library.figshare.com/articles/conference_contribution/Possible_reductions_in_Barents_Sea_surveys_a_test_of_its_influence_on_Northeast_Arctic_cod_assessment_quality/24973965 unknown ASC 2012 - Theme session F https://ices-library.figshare.com/ICES-ASC-2012/groups ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx Fisheries and aquaculture Technologies and data CreativeWork Conference contribution Other article 2024 ftdatacite https://doi.org/10.17895/ices.pub.24973965 2024-02-01T15:56:31Z No abstracts are to be cited without prior reference to the author.The problem of funding could lead to fewer and less frequent surveys. This study evaluated how such a reduction may affect the quality of Northeast Arctic (NEA) cod stock assessment, which relies on the results of survey data. Based on data from the ICES Arctic Fisheries Working Group collected for the period from 1946 to 2010, VPA/XSA stock assessments were performed in FLR with different assumptions on possible reduction in surveys. For all explored cases of reduced frequency of surveys a serious deterioration of the NEA cod assessment quality was observed. Retrospective patterns of SSB estimates demonstrate possible deviation of up to 55% and the same effect is observed for total stock estimates. If such a situation becomes real, it may lead to serious under/overestimation of the stock and TAC. In addition, in current ICES practice the results of NEA cod assessment are used for NEA haddock assessment and capelin TAC prediction, for which ... Conference Object Arctic cod Arctic Barents Sea Northeast Arctic cod DataCite Metadata Store (German National Library of Science and Technology) Arctic Barents Sea Tac ENVELOPE(-59.517,-59.517,-62.500,-62.500) |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
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unknown |
topic |
Fisheries and aquaculture Technologies and data |
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Fisheries and aquaculture Technologies and data Kovalev, Yury Chetyrkin, Anatoly Possible reductions in Barents Sea surveys a test of its influence on Northeast Arctic cod assessment quality ... |
topic_facet |
Fisheries and aquaculture Technologies and data |
description |
No abstracts are to be cited without prior reference to the author.The problem of funding could lead to fewer and less frequent surveys. This study evaluated how such a reduction may affect the quality of Northeast Arctic (NEA) cod stock assessment, which relies on the results of survey data. Based on data from the ICES Arctic Fisheries Working Group collected for the period from 1946 to 2010, VPA/XSA stock assessments were performed in FLR with different assumptions on possible reduction in surveys. For all explored cases of reduced frequency of surveys a serious deterioration of the NEA cod assessment quality was observed. Retrospective patterns of SSB estimates demonstrate possible deviation of up to 55% and the same effect is observed for total stock estimates. If such a situation becomes real, it may lead to serious under/overestimation of the stock and TAC. In addition, in current ICES practice the results of NEA cod assessment are used for NEA haddock assessment and capelin TAC prediction, for which ... |
format |
Conference Object |
author |
Kovalev, Yury Chetyrkin, Anatoly |
author_facet |
Kovalev, Yury Chetyrkin, Anatoly |
author_sort |
Kovalev, Yury |
title |
Possible reductions in Barents Sea surveys a test of its influence on Northeast Arctic cod assessment quality ... |
title_short |
Possible reductions in Barents Sea surveys a test of its influence on Northeast Arctic cod assessment quality ... |
title_full |
Possible reductions in Barents Sea surveys a test of its influence on Northeast Arctic cod assessment quality ... |
title_fullStr |
Possible reductions in Barents Sea surveys a test of its influence on Northeast Arctic cod assessment quality ... |
title_full_unstemmed |
Possible reductions in Barents Sea surveys a test of its influence on Northeast Arctic cod assessment quality ... |
title_sort |
possible reductions in barents sea surveys a test of its influence on northeast arctic cod assessment quality ... |
publisher |
ASC 2012 - Theme session F |
publishDate |
2024 |
url |
https://dx.doi.org/10.17895/ices.pub.24973965 https://ices-library.figshare.com/articles/conference_contribution/Possible_reductions_in_Barents_Sea_surveys_a_test_of_its_influence_on_Northeast_Arctic_cod_assessment_quality/24973965 |
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ENVELOPE(-59.517,-59.517,-62.500,-62.500) |
geographic |
Arctic Barents Sea Tac |
geographic_facet |
Arctic Barents Sea Tac |
genre |
Arctic cod Arctic Barents Sea Northeast Arctic cod |
genre_facet |
Arctic cod Arctic Barents Sea Northeast Arctic cod |
op_relation |
https://ices-library.figshare.com/ICES-ASC-2012/groups |
op_rights |
ICES Custom Licence https://www.ices.dk/Pages/library_policies.aspx |
op_doi |
https://doi.org/10.17895/ices.pub.24973965 |
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1792043342830239744 |