Catchability of snow crab ( Chionoecetes opilio ) by the eastern Bering Sea bottom trawl survey estimated using a catch comparison experiment
Catchability of the eastern Bering Sea (EBS) bottom trawl survey for snow crab (Chionoecetes opilio) was estimated from experimental data to provide a constraint on the survey catchability parameters in the stock assessment model. The experiment utilized a second fishing vessel to conduct side-by-si...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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2013
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Online Access: | http://dx.doi.org/10.1139/cjfas-2013-0100 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2013-0100 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2013-0100 |
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crcansciencepubl:10.1139/cjfas-2013-0100 2023-12-17T10:28:07+01:00 Catchability of snow crab ( Chionoecetes opilio ) by the eastern Bering Sea bottom trawl survey estimated using a catch comparison experiment Somerton, David A. Weinberg, Kenneth L. Goodman, Scott E. Chen, Yong 2013 http://dx.doi.org/10.1139/cjfas-2013-0100 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2013-0100 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2013-0100 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 70, issue 12, page 1699-1708 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2013 crcansciencepubl https://doi.org/10.1139/cjfas-2013-0100 2023-11-19T13:38:07Z Catchability of the eastern Bering Sea (EBS) bottom trawl survey for snow crab (Chionoecetes opilio) was estimated from experimental data to provide a constraint on the survey catchability parameters in the stock assessment model. The experiment utilized a second fishing vessel to conduct side-by-side trawling with each of two survey vessels at 92 stations using an experimental trawl assumed to capture all crabs in its path. Trawl efficiency, or the captured proportion of crabs in the trawl path, was estimated for the 83-112 Eastern otter trawl from experimental data using a nonparametric smooth function of carapace width, sediment size, and depth. Survey catchability was then estimated as the catch-weighted average of the predicted trawl efficiency at all 275 survey stations where snow crabs were captured. The fitted model indicated that trawl selectivity was greater in sand than mud and greater in shallow water than deep. At a carapace widths >95 mm, the minimum commercial size limit, the estimated survey catchability of males is considerably less than previously reported. Article in Journal/Newspaper Bering Sea Chionoecetes opilio Snow crab Canadian Science Publishing (via Crossref) Bering Sea Canadian Journal of Fisheries and Aquatic Sciences 70 12 1699 1708 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Somerton, David A. Weinberg, Kenneth L. Goodman, Scott E. Catchability of snow crab ( Chionoecetes opilio ) by the eastern Bering Sea bottom trawl survey estimated using a catch comparison experiment |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Catchability of the eastern Bering Sea (EBS) bottom trawl survey for snow crab (Chionoecetes opilio) was estimated from experimental data to provide a constraint on the survey catchability parameters in the stock assessment model. The experiment utilized a second fishing vessel to conduct side-by-side trawling with each of two survey vessels at 92 stations using an experimental trawl assumed to capture all crabs in its path. Trawl efficiency, or the captured proportion of crabs in the trawl path, was estimated for the 83-112 Eastern otter trawl from experimental data using a nonparametric smooth function of carapace width, sediment size, and depth. Survey catchability was then estimated as the catch-weighted average of the predicted trawl efficiency at all 275 survey stations where snow crabs were captured. The fitted model indicated that trawl selectivity was greater in sand than mud and greater in shallow water than deep. At a carapace widths >95 mm, the minimum commercial size limit, the estimated survey catchability of males is considerably less than previously reported. |
author2 |
Chen, Yong |
format |
Article in Journal/Newspaper |
author |
Somerton, David A. Weinberg, Kenneth L. Goodman, Scott E. |
author_facet |
Somerton, David A. Weinberg, Kenneth L. Goodman, Scott E. |
author_sort |
Somerton, David A. |
title |
Catchability of snow crab ( Chionoecetes opilio ) by the eastern Bering Sea bottom trawl survey estimated using a catch comparison experiment |
title_short |
Catchability of snow crab ( Chionoecetes opilio ) by the eastern Bering Sea bottom trawl survey estimated using a catch comparison experiment |
title_full |
Catchability of snow crab ( Chionoecetes opilio ) by the eastern Bering Sea bottom trawl survey estimated using a catch comparison experiment |
title_fullStr |
Catchability of snow crab ( Chionoecetes opilio ) by the eastern Bering Sea bottom trawl survey estimated using a catch comparison experiment |
title_full_unstemmed |
Catchability of snow crab ( Chionoecetes opilio ) by the eastern Bering Sea bottom trawl survey estimated using a catch comparison experiment |
title_sort |
catchability of snow crab ( chionoecetes opilio ) by the eastern bering sea bottom trawl survey estimated using a catch comparison experiment |
publisher |
Canadian Science Publishing |
publishDate |
2013 |
url |
http://dx.doi.org/10.1139/cjfas-2013-0100 http://www.nrcresearchpress.com/doi/full-xml/10.1139/cjfas-2013-0100 http://www.nrcresearchpress.com/doi/pdf/10.1139/cjfas-2013-0100 |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea Chionoecetes opilio Snow crab |
genre_facet |
Bering Sea Chionoecetes opilio Snow crab |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 70, issue 12, page 1699-1708 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2013-0100 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
70 |
container_issue |
12 |
container_start_page |
1699 |
op_container_end_page |
1708 |
_version_ |
1785580154629652480 |