Efficiency and catch dynamics of collapsible square and conical pots used in the red king crab (Paralithodes camtschaticus) fishery
We compared the capture efficiency and catch dynamics of collapsible square and conical pots used in resource assessment and harvesting of red king crabs (Paralithodes camtschaticus [Tilesius, 1815]) in the Barents Sea. After two days of soaking, square pots caught three times as many crabs as conic...
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ftaquaticcommons:oai:generic.eprints.org:8855 2023-05-15T15:38:58+02:00 Efficiency and catch dynamics of collapsible square and conical pots used in the red king crab (Paralithodes camtschaticus) fishery Stiansen, Stian Fernö, Anders Furevik, Dag Jørgensen, Terje Løkkeborg, Svein 2008 application/pdf http://aquaticcommons.org/8855/ http://fishbull.noaa.gov/1061/stiansen.pdf http://aquaticcommons.org/8855/1/stiansen_Fish_Bull_2008.pdf en eng http://aquaticcommons.org/8855/1/stiansen_Fish_Bull_2008.pdf Stiansen, Stian and Fernö, Anders and Furevik, Dag and Jørgensen, Terje and Løkkeborg, Svein (2008) Efficiency and catch dynamics of collapsible square and conical pots used in the red king crab (Paralithodes camtschaticus) fishery. Fishery Bulletin, 106(1), pp. 40-46. Biology Ecology Fisheries Article PeerReviewed 2008 ftaquaticcommons 2020-02-27T09:23:18Z We compared the capture efficiency and catch dynamics of collapsible square and conical pots used in resource assessment and harvesting of red king crabs (Paralithodes camtschaticus [Tilesius, 1815]) in the Barents Sea. After two days of soaking, square pots caught three times as many crabs as conical pots, and their catches consisted of a higher proportion of male crabs and male crabs larger than 160 mm carapace length compared to the catches in the conical pots. Catches in the square pots did not increase as soak times were increased beyond two days, which indicates equilibrium between the rate of entries into and the rate of exits from the pots. Catches in conical pots, however, increased with increasing soak times up to eight days, the longest soak time examined in this study. These findings demonstrate the higher efficiency of square pots and the importance of understanding catch dynamics when making population assessments based on catchper-unit-of-effort data. The favorable catch characteristics and handling properties of the collapsible square pot may make this pot design suitable for other crab fisheries, as well. Article in Journal/Newspaper Barents Sea Paralithodes camtschaticus Red king crab International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons Barents Sea |
institution |
Open Polar |
collection |
International Association of Aquatic and Marine Science Libraries and Information Centers (IAMSLIC): Aquatic Commons |
op_collection_id |
ftaquaticcommons |
language |
English |
topic |
Biology Ecology Fisheries |
spellingShingle |
Biology Ecology Fisheries Stiansen, Stian Fernö, Anders Furevik, Dag Jørgensen, Terje Løkkeborg, Svein Efficiency and catch dynamics of collapsible square and conical pots used in the red king crab (Paralithodes camtschaticus) fishery |
topic_facet |
Biology Ecology Fisheries |
description |
We compared the capture efficiency and catch dynamics of collapsible square and conical pots used in resource assessment and harvesting of red king crabs (Paralithodes camtschaticus [Tilesius, 1815]) in the Barents Sea. After two days of soaking, square pots caught three times as many crabs as conical pots, and their catches consisted of a higher proportion of male crabs and male crabs larger than 160 mm carapace length compared to the catches in the conical pots. Catches in the square pots did not increase as soak times were increased beyond two days, which indicates equilibrium between the rate of entries into and the rate of exits from the pots. Catches in conical pots, however, increased with increasing soak times up to eight days, the longest soak time examined in this study. These findings demonstrate the higher efficiency of square pots and the importance of understanding catch dynamics when making population assessments based on catchper-unit-of-effort data. The favorable catch characteristics and handling properties of the collapsible square pot may make this pot design suitable for other crab fisheries, as well. |
format |
Article in Journal/Newspaper |
author |
Stiansen, Stian Fernö, Anders Furevik, Dag Jørgensen, Terje Løkkeborg, Svein |
author_facet |
Stiansen, Stian Fernö, Anders Furevik, Dag Jørgensen, Terje Løkkeborg, Svein |
author_sort |
Stiansen, Stian |
title |
Efficiency and catch dynamics of collapsible square and conical pots used in the red king crab (Paralithodes camtschaticus) fishery |
title_short |
Efficiency and catch dynamics of collapsible square and conical pots used in the red king crab (Paralithodes camtschaticus) fishery |
title_full |
Efficiency and catch dynamics of collapsible square and conical pots used in the red king crab (Paralithodes camtschaticus) fishery |
title_fullStr |
Efficiency and catch dynamics of collapsible square and conical pots used in the red king crab (Paralithodes camtschaticus) fishery |
title_full_unstemmed |
Efficiency and catch dynamics of collapsible square and conical pots used in the red king crab (Paralithodes camtschaticus) fishery |
title_sort |
efficiency and catch dynamics of collapsible square and conical pots used in the red king crab (paralithodes camtschaticus) fishery |
publishDate |
2008 |
url |
http://aquaticcommons.org/8855/ http://fishbull.noaa.gov/1061/stiansen.pdf http://aquaticcommons.org/8855/1/stiansen_Fish_Bull_2008.pdf |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea Paralithodes camtschaticus Red king crab |
genre_facet |
Barents Sea Paralithodes camtschaticus Red king crab |
op_relation |
http://aquaticcommons.org/8855/1/stiansen_Fish_Bull_2008.pdf Stiansen, Stian and Fernö, Anders and Furevik, Dag and Jørgensen, Terje and Løkkeborg, Svein (2008) Efficiency and catch dynamics of collapsible square and conical pots used in the red king crab (Paralithodes camtschaticus) fishery. Fishery Bulletin, 106(1), pp. 40-46. |
_version_ |
1766370404005314560 |