Alternative bait trials in the Barents Sea snow crab fishery
Commercial harvesting of snow crab ( Chionoecetes opilio ) in the Barents Sea started in 2012 by Norwegian fishing vessels. This new fishery has significant bait requirements, representing an emerging conservation challenge. In this study, we evaluate the performance of five alternative (natural) ba...
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crpeerj:10.7717/peerj.6874 2024-09-15T17:57:14+00:00 Alternative bait trials in the Barents Sea snow crab fishery Araya-Schmidt, Tomas Olsen, Leonore Rindahl, Lasse Larsen, Roger B. Winger, Paul D. Memorial University of Newfoundland and SINTEF 2019 http://dx.doi.org/10.7717/peerj.6874 https://peerj.com/articles/6874.pdf https://peerj.com/articles/6874.xml https://peerj.com/articles/6874.html en eng PeerJ http://creativecommons.org/licenses/by/4.0/ PeerJ volume 7, page e6874 ISSN 2167-8359 journal-article 2019 crpeerj https://doi.org/10.7717/peerj.6874 2024-08-13T04:10:05Z Commercial harvesting of snow crab ( Chionoecetes opilio ) in the Barents Sea started in 2012 by Norwegian fishing vessels. This new fishery has significant bait requirements, representing an emerging conservation challenge. In this study, we evaluate the performance of five alternative (natural) baits manufactured from the waste stream of existing and sustainably managed harp seal ( Pagophilus groenlandicus ) and minke whale ( Balaenoptera acutorostrata ) capture. Five different types of new bait were evaluated, including seal fat (SF), seal fat with skin (SFS), seal meat with bone (SMB), whale fat with skin (WFS), and whale meat with fat (WMF). A comparative fishing experiment was conducted onboard a commercial snow crab fishing vessel in the Barents Sea (May–June, 2016) to evaluate the performance of traditional bait (squid, Illexs spp .) and alternative baits at catching snow crabs. Performance of the different baits were compared on the basis of the number of commercial crab caught per trap haul catch per unit effort (CPUE) and carapace width (CW). Our results showed that SF and SFS performed equally well to traditional bait, with no statistical difference in CPUE ( p -value = 0.325 and 0.069, respectively). All of the other experimental baits significantly decreased CPUE, when compared to squid. No significant effect of bait treatment on CW was detected and the cumulative distribution of CW was the same between control traps and each of the bait treatments. Overall the results indicated that SF and SFS represent a viable alternative to replace traditional bait, addressing a key conservation challenge in this bait intensive snow crab fishery. Article in Journal/Newspaper Balaenoptera acutorostrata Barents Sea Chionoecetes opilio Harp Seal minke whale Pagophilus groenlandicus Snow crab PeerJ Publishing PeerJ 7 e6874 |
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PeerJ Publishing |
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language |
English |
description |
Commercial harvesting of snow crab ( Chionoecetes opilio ) in the Barents Sea started in 2012 by Norwegian fishing vessels. This new fishery has significant bait requirements, representing an emerging conservation challenge. In this study, we evaluate the performance of five alternative (natural) baits manufactured from the waste stream of existing and sustainably managed harp seal ( Pagophilus groenlandicus ) and minke whale ( Balaenoptera acutorostrata ) capture. Five different types of new bait were evaluated, including seal fat (SF), seal fat with skin (SFS), seal meat with bone (SMB), whale fat with skin (WFS), and whale meat with fat (WMF). A comparative fishing experiment was conducted onboard a commercial snow crab fishing vessel in the Barents Sea (May–June, 2016) to evaluate the performance of traditional bait (squid, Illexs spp .) and alternative baits at catching snow crabs. Performance of the different baits were compared on the basis of the number of commercial crab caught per trap haul catch per unit effort (CPUE) and carapace width (CW). Our results showed that SF and SFS performed equally well to traditional bait, with no statistical difference in CPUE ( p -value = 0.325 and 0.069, respectively). All of the other experimental baits significantly decreased CPUE, when compared to squid. No significant effect of bait treatment on CW was detected and the cumulative distribution of CW was the same between control traps and each of the bait treatments. Overall the results indicated that SF and SFS represent a viable alternative to replace traditional bait, addressing a key conservation challenge in this bait intensive snow crab fishery. |
author2 |
Memorial University of Newfoundland and SINTEF |
format |
Article in Journal/Newspaper |
author |
Araya-Schmidt, Tomas Olsen, Leonore Rindahl, Lasse Larsen, Roger B. Winger, Paul D. |
spellingShingle |
Araya-Schmidt, Tomas Olsen, Leonore Rindahl, Lasse Larsen, Roger B. Winger, Paul D. Alternative bait trials in the Barents Sea snow crab fishery |
author_facet |
Araya-Schmidt, Tomas Olsen, Leonore Rindahl, Lasse Larsen, Roger B. Winger, Paul D. |
author_sort |
Araya-Schmidt, Tomas |
title |
Alternative bait trials in the Barents Sea snow crab fishery |
title_short |
Alternative bait trials in the Barents Sea snow crab fishery |
title_full |
Alternative bait trials in the Barents Sea snow crab fishery |
title_fullStr |
Alternative bait trials in the Barents Sea snow crab fishery |
title_full_unstemmed |
Alternative bait trials in the Barents Sea snow crab fishery |
title_sort |
alternative bait trials in the barents sea snow crab fishery |
publisher |
PeerJ |
publishDate |
2019 |
url |
http://dx.doi.org/10.7717/peerj.6874 https://peerj.com/articles/6874.pdf https://peerj.com/articles/6874.xml https://peerj.com/articles/6874.html |
genre |
Balaenoptera acutorostrata Barents Sea Chionoecetes opilio Harp Seal minke whale Pagophilus groenlandicus Snow crab |
genre_facet |
Balaenoptera acutorostrata Barents Sea Chionoecetes opilio Harp Seal minke whale Pagophilus groenlandicus Snow crab |
op_source |
PeerJ volume 7, page e6874 ISSN 2167-8359 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.7717/peerj.6874 |
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PeerJ |
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7 |
container_start_page |
e6874 |
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1810433397982494720 |