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) bait...
Published in: | PeerJ |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
PeerJ Inc.
2019
|
Subjects: | |
Online Access: | https://doi.org/10.7717/peerj.6874 https://doaj.org/article/872c13fcc79b4fa69cafc10016497565 |
id |
ftdoajarticles:oai:doaj.org/article:872c13fcc79b4fa69cafc10016497565 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:872c13fcc79b4fa69cafc10016497565 2024-01-07T09:42:19+01:00 Alternative bait trials in the Barents Sea snow crab fishery Tomas Araya-Schmidt Leonore Olsen Lasse Rindahl Roger B. Larsen Paul D. Winger 2019-05-01T00:00:00Z https://doi.org/10.7717/peerj.6874 https://doaj.org/article/872c13fcc79b4fa69cafc10016497565 EN eng PeerJ Inc. https://peerj.com/articles/6874.pdf https://peerj.com/articles/6874/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.6874 2167-8359 https://doaj.org/article/872c13fcc79b4fa69cafc10016497565 PeerJ, Vol 7, p e6874 (2019) Traps Snow crab Barents Sea Seal Whale Squid Medicine R Biology (General) QH301-705.5 article 2019 ftdoajarticles https://doi.org/10.7717/peerj.6874 2023-12-10T01:49:53Z 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 Directory of Open Access Journals: DOAJ Articles Barents Sea PeerJ 7 e6874 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Traps Snow crab Barents Sea Seal Whale Squid Medicine R Biology (General) QH301-705.5 |
spellingShingle |
Traps Snow crab Barents Sea Seal Whale Squid Medicine R Biology (General) QH301-705.5 Tomas Araya-Schmidt Leonore Olsen Lasse Rindahl Roger B. Larsen Paul D. Winger Alternative bait trials in the Barents Sea snow crab fishery |
topic_facet |
Traps Snow crab Barents Sea Seal Whale Squid Medicine R Biology (General) QH301-705.5 |
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. |
format |
Article in Journal/Newspaper |
author |
Tomas Araya-Schmidt Leonore Olsen Lasse Rindahl Roger B. Larsen Paul D. Winger |
author_facet |
Tomas Araya-Schmidt Leonore Olsen Lasse Rindahl Roger B. Larsen Paul D. Winger |
author_sort |
Tomas Araya-Schmidt |
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 Inc. |
publishDate |
2019 |
url |
https://doi.org/10.7717/peerj.6874 https://doaj.org/article/872c13fcc79b4fa69cafc10016497565 |
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_source |
PeerJ, Vol 7, p e6874 (2019) |
op_relation |
https://peerj.com/articles/6874.pdf https://peerj.com/articles/6874/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.6874 2167-8359 https://doaj.org/article/872c13fcc79b4fa69cafc10016497565 |
op_doi |
https://doi.org/10.7717/peerj.6874 |
container_title |
PeerJ |
container_volume |
7 |
container_start_page |
e6874 |
_version_ |
1787423275593236480 |