Alternative bait trials in the Barents Sea snow crab fishery
Source at https://doi.org/10.7717/peerj.6874 . 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 t...
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Online Access: | https://hdl.handle.net/10037/16691 https://doi.org/10.7717/peerj.6874 |
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ftunivtroemsoe:oai:munin.uit.no:10037/16691 2023-05-15T15:36:10+02:00 Alternative bait trials in the Barents Sea snow crab fishery Araya-Schmidt, Tomas Olsen, Leonore Rindahl, Lasse Larsen, Roger B. Winger, Paul D. 2019-05-13 https://hdl.handle.net/10037/16691 https://doi.org/10.7717/peerj.6874 eng eng PeerJ PeerJ Araya-Schmidt, T., Olsen, L., Rindahl, L., Larsen, R.B. & Winger, P.D. (2019). Alternative bait trials in the Barents Sea snow crab fishery. PeerJ, 7 , e6874. https://doi.org/10.7717/peerj.6874 FRIDAID 1747536 doi:10.7717/peerj.6874 2167-8359 https://hdl.handle.net/10037/16691 openAccess VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskeriteknologi: 924 Journal article Tidsskriftartikkel Peer reviewed 2019 ftunivtroemsoe https://doi.org/10.7717/peerj.6874 2021-06-25T17:56:56Z Source at https://doi.org/10.7717/peerj.6874 . 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 University of Tromsø: Munin Open Research Archive Barents Sea PeerJ 7 e6874 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskeriteknologi: 924 |
spellingShingle |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskeriteknologi: 924 Araya-Schmidt, Tomas Olsen, Leonore Rindahl, Lasse Larsen, Roger B. Winger, Paul D. Alternative bait trials in the Barents Sea snow crab fishery |
topic_facet |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Fisheries technology: 924 VDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fiskeriteknologi: 924 |
description |
Source at https://doi.org/10.7717/peerj.6874 . 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. |
format |
Article in Journal/Newspaper |
author |
Araya-Schmidt, Tomas Olsen, Leonore Rindahl, Lasse Larsen, Roger B. Winger, Paul D. |
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 |
https://hdl.handle.net/10037/16691 https://doi.org/10.7717/peerj.6874 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
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_relation |
PeerJ Araya-Schmidt, T., Olsen, L., Rindahl, L., Larsen, R.B. & Winger, P.D. (2019). Alternative bait trials in the Barents Sea snow crab fishery. PeerJ, 7 , e6874. https://doi.org/10.7717/peerj.6874 FRIDAID 1747536 doi:10.7717/peerj.6874 2167-8359 https://hdl.handle.net/10037/16691 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.7717/peerj.6874 |
container_title |
PeerJ |
container_volume |
7 |
container_start_page |
e6874 |
_version_ |
1766366505660841984 |