Effect of pot design on the catch efficiency of snow crabs (Chionoecetes opilio) in the Barents Sea fishery
The snow crab (Chioneocetes opilio) fishery in the Barents Sea is carried out by large offshore vessels, as the fishing grounds are located far from shore and the gear must be transported back and forth over long distances. Therefore, fishers use stackable conical pots that allow large numbers of po...
Published in: | PLOS ONE |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2019
|
Subjects: | |
Online Access: | http://hdl.handle.net/11250/2607275 https://doi.org/10.1371/journal.pone.0219858 |
id |
ftsintef:oai:sintef.brage.unit.no:11250/2607275 |
---|---|
record_format |
openpolar |
spelling |
ftsintef:oai:sintef.brage.unit.no:11250/2607275 2024-09-15T17:57:49+00:00 Effect of pot design on the catch efficiency of snow crabs (Chionoecetes opilio) in the Barents Sea fishery Olsen, Leonore Herrmann, Bent Grimaldo, Eduardo Sistiaga, Manu Berrondo 2019-07-18 application/pdf http://hdl.handle.net/11250/2607275 https://doi.org/10.1371/journal.pone.0219858 eng eng Elsevier PLoS ONE. 2019, . urn:issn:1932-6203 http://hdl.handle.net/11250/2607275 https://doi.org/10.1371/journal.pone.0219858 cristin:1712308 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2019 Olsen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 16 PLoS ONE Journal article Peer reviewed 2019 ftsintef https://doi.org/10.1371/journal.pone.0219858 2024-08-30T03:27:11Z The snow crab (Chioneocetes opilio) fishery in the Barents Sea is carried out by large offshore vessels, as the fishing grounds are located far from shore and the gear must be transported back and forth over long distances. Therefore, fishers use stackable conical pots that allow large numbers of pots to be carried on deck for each trip. One of the drawbacks of using stackable pots is that the entrance is at the vertex of the conical pot, which Fishers claim does not provide the desired fishing efficiency. Thus, the goal of this study was to determine whether a different pot design would improve the catch efficiency of snow crabs. We investigated the efficiency of a new type of pot called the moon pot, which provides continuous increased bait odour intensity as snow crabs make their way towards the entrance of the pot. This alteration was expected to increase catch efficiency compared to that of the conical pots used by the fleet today. However, experimental fishing results showed that the modified pots had significantly lower catch efficiency than the standard conical pots, as only ~66% of the number of crabs caught by the conical pots were caught in the moon pots. The main reason for this reduced catch efficiency likely was the initial steepness of the moon pot, which may have made it difficult for crabs to reach the pot entrance. These results demonstrated that pot design can dramatically affect catch efficiency of snow crabs. Effect of pot design on the catch efficiency of snow crabs (Chionoecetes opilio) in the Barents Sea fishery publishedVersion Article in Journal/Newspaper Barents Sea Chionoecetes opilio Snow crab SINTEF Open PLOS ONE 14 7 e0219858 |
institution |
Open Polar |
collection |
SINTEF Open |
op_collection_id |
ftsintef |
language |
English |
description |
The snow crab (Chioneocetes opilio) fishery in the Barents Sea is carried out by large offshore vessels, as the fishing grounds are located far from shore and the gear must be transported back and forth over long distances. Therefore, fishers use stackable conical pots that allow large numbers of pots to be carried on deck for each trip. One of the drawbacks of using stackable pots is that the entrance is at the vertex of the conical pot, which Fishers claim does not provide the desired fishing efficiency. Thus, the goal of this study was to determine whether a different pot design would improve the catch efficiency of snow crabs. We investigated the efficiency of a new type of pot called the moon pot, which provides continuous increased bait odour intensity as snow crabs make their way towards the entrance of the pot. This alteration was expected to increase catch efficiency compared to that of the conical pots used by the fleet today. However, experimental fishing results showed that the modified pots had significantly lower catch efficiency than the standard conical pots, as only ~66% of the number of crabs caught by the conical pots were caught in the moon pots. The main reason for this reduced catch efficiency likely was the initial steepness of the moon pot, which may have made it difficult for crabs to reach the pot entrance. These results demonstrated that pot design can dramatically affect catch efficiency of snow crabs. Effect of pot design on the catch efficiency of snow crabs (Chionoecetes opilio) in the Barents Sea fishery publishedVersion |
format |
Article in Journal/Newspaper |
author |
Olsen, Leonore Herrmann, Bent Grimaldo, Eduardo Sistiaga, Manu Berrondo |
spellingShingle |
Olsen, Leonore Herrmann, Bent Grimaldo, Eduardo Sistiaga, Manu Berrondo Effect of pot design on the catch efficiency of snow crabs (Chionoecetes opilio) in the Barents Sea fishery |
author_facet |
Olsen, Leonore Herrmann, Bent Grimaldo, Eduardo Sistiaga, Manu Berrondo |
author_sort |
Olsen, Leonore |
title |
Effect of pot design on the catch efficiency of snow crabs (Chionoecetes opilio) in the Barents Sea fishery |
title_short |
Effect of pot design on the catch efficiency of snow crabs (Chionoecetes opilio) in the Barents Sea fishery |
title_full |
Effect of pot design on the catch efficiency of snow crabs (Chionoecetes opilio) in the Barents Sea fishery |
title_fullStr |
Effect of pot design on the catch efficiency of snow crabs (Chionoecetes opilio) in the Barents Sea fishery |
title_full_unstemmed |
Effect of pot design on the catch efficiency of snow crabs (Chionoecetes opilio) in the Barents Sea fishery |
title_sort |
effect of pot design on the catch efficiency of snow crabs (chionoecetes opilio) in the barents sea fishery |
publisher |
Elsevier |
publishDate |
2019 |
url |
http://hdl.handle.net/11250/2607275 https://doi.org/10.1371/journal.pone.0219858 |
genre |
Barents Sea Chionoecetes opilio Snow crab |
genre_facet |
Barents Sea Chionoecetes opilio Snow crab |
op_source |
16 PLoS ONE |
op_relation |
PLoS ONE. 2019, . urn:issn:1932-6203 http://hdl.handle.net/11250/2607275 https://doi.org/10.1371/journal.pone.0219858 cristin:1712308 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no © 2019 Olsen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_doi |
https://doi.org/10.1371/journal.pone.0219858 |
container_title |
PLOS ONE |
container_volume |
14 |
container_issue |
7 |
container_start_page |
e0219858 |
_version_ |
1810434007219830784 |