Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea
During a 2018 retrieval cruise for abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea, approximately 8600 pots abandoned 1.5 years earlier were recovered. Forty-three percent of a subsample of 1000 pots contained snow crabs, with an average of three crabs per pot. Most of the crabs we...
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Online Access: | http://hdl.handle.net/10852/88863 http://urn.nb.no/URN:NBN:no-91480 https://doi.org/10.1016/j.marpolbul.2021.113001 |
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ftoslouniv:oai:www.duo.uio.no:10852/88863 2023-05-15T15:38:23+02:00 Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea Humborstad, Odd Børre Eliassen, Lasse Krøger Siikavuopio, Sten Ivar Løkkeborg, Svein Ingolfsson, Olafur Arnar Hjelset, Ann Merete 2021-10-07T08:37:04Z http://hdl.handle.net/10852/88863 http://urn.nb.no/URN:NBN:no-91480 https://doi.org/10.1016/j.marpolbul.2021.113001 EN eng http://urn.nb.no/URN:NBN:no-91480 Humborstad, Odd Børre Eliassen, Lasse Krøger Siikavuopio, Sten Ivar Løkkeborg, Svein Ingolfsson, Olafur Arnar Hjelset, Ann Merete . Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea. Marine Pollution Bulletin. 2021, 173 http://hdl.handle.net/10852/88863 1944023 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Marine Pollution Bulletin&rft.volume=173&rft.spage=&rft.date=2021 Marine Pollution Bulletin 173 https://doi.org/10.1016/j.marpolbul.2021.113001 URN:NBN:no-91480 Fulltext https://www.duo.uio.no/bitstream/handle/10852/88863/2/1-s2.0-S0025326X21010353-main.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 0025-326X Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2021 ftoslouniv https://doi.org/10.1016/j.marpolbul.2021.113001 2021-10-13T22:31:59Z During a 2018 retrieval cruise for abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea, approximately 8600 pots abandoned 1.5 years earlier were recovered. Forty-three percent of a subsample of 1000 pots contained snow crabs, with an average of three crabs per pot. Most of the crabs were alive (~98%) and dominated by large males. Pinch injuries and limb loss were common and tended to decline with increasing crab size. Reflex testing showed that the crabs were vital (i.e. the crabs moved their legs, chelipeds and maxillipeds when stimulated), which was supported by a relatively high meat content. However, energy reserves in the digestive glands (hepatopancreas reserves) were low, indicating overall energy deficiencies. Our results indicate considerable unaccounted mortality due to self-baiting, continued catch and cannibalism. The findings demonstrate that snow crab pots which are lost or abandoned in the Barents Sea fishery maintain huge potential for ghost-fishing impacts. Article in Journal/Newspaper Barents Sea Chionoecetes opilio Snow crab Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Barents Sea Marine Pollution Bulletin 173 113001 |
institution |
Open Polar |
collection |
Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
During a 2018 retrieval cruise for abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea, approximately 8600 pots abandoned 1.5 years earlier were recovered. Forty-three percent of a subsample of 1000 pots contained snow crabs, with an average of three crabs per pot. Most of the crabs were alive (~98%) and dominated by large males. Pinch injuries and limb loss were common and tended to decline with increasing crab size. Reflex testing showed that the crabs were vital (i.e. the crabs moved their legs, chelipeds and maxillipeds when stimulated), which was supported by a relatively high meat content. However, energy reserves in the digestive glands (hepatopancreas reserves) were low, indicating overall energy deficiencies. Our results indicate considerable unaccounted mortality due to self-baiting, continued catch and cannibalism. The findings demonstrate that snow crab pots which are lost or abandoned in the Barents Sea fishery maintain huge potential for ghost-fishing impacts. |
format |
Article in Journal/Newspaper |
author |
Humborstad, Odd Børre Eliassen, Lasse Krøger Siikavuopio, Sten Ivar Løkkeborg, Svein Ingolfsson, Olafur Arnar Hjelset, Ann Merete |
spellingShingle |
Humborstad, Odd Børre Eliassen, Lasse Krøger Siikavuopio, Sten Ivar Løkkeborg, Svein Ingolfsson, Olafur Arnar Hjelset, Ann Merete Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea |
author_facet |
Humborstad, Odd Børre Eliassen, Lasse Krøger Siikavuopio, Sten Ivar Løkkeborg, Svein Ingolfsson, Olafur Arnar Hjelset, Ann Merete |
author_sort |
Humborstad, Odd Børre |
title |
Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea |
title_short |
Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea |
title_full |
Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea |
title_fullStr |
Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea |
title_full_unstemmed |
Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea |
title_sort |
catches in abandoned snow crab (chionoecetes opilio) pots in the barents sea |
publishDate |
2021 |
url |
http://hdl.handle.net/10852/88863 http://urn.nb.no/URN:NBN:no-91480 https://doi.org/10.1016/j.marpolbul.2021.113001 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Chionoecetes opilio Snow crab |
genre_facet |
Barents Sea Chionoecetes opilio Snow crab |
op_source |
0025-326X |
op_relation |
http://urn.nb.no/URN:NBN:no-91480 Humborstad, Odd Børre Eliassen, Lasse Krøger Siikavuopio, Sten Ivar Løkkeborg, Svein Ingolfsson, Olafur Arnar Hjelset, Ann Merete . Catches in abandoned snow crab (Chionoecetes opilio) pots in the Barents Sea. Marine Pollution Bulletin. 2021, 173 http://hdl.handle.net/10852/88863 1944023 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Marine Pollution Bulletin&rft.volume=173&rft.spage=&rft.date=2021 Marine Pollution Bulletin 173 https://doi.org/10.1016/j.marpolbul.2021.113001 URN:NBN:no-91480 Fulltext https://www.duo.uio.no/bitstream/handle/10852/88863/2/1-s2.0-S0025326X21010353-main.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.marpolbul.2021.113001 |
container_title |
Marine Pollution Bulletin |
container_volume |
173 |
container_start_page |
113001 |
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1766369283644850176 |