Evaluation of Modified Crab Pots to Increase Catch of Pacific Cod and Decrease Bycatch of Pacific Halibut

Use of crab pots to catch Pacific cod Gadus macrocephalus has increased in the Gulf of Alaska and Bering Sea. We evaluated a variety of crab pot modifications that we hoped would increase the catch of Pacific cod and decrease the bycatch of Pacific halibut Hippoglossus stenolepis. During September a...

Full description

Saved in:
Bibliographic Details
Published in:North American journal of fisheries management 1997-11, Vol.17 (4), p.910-928
Main Authors: Carlile, David W., Dinnocenzo, Thomas A., Watson, Leslie J.
Format: Article
Language:English
Subjects:
Gadus macrocephalus
Hippoglossus stenolepis
Marine
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by
cites
container_end_page 928
container_issue 4
container_start_page 910
container_title North American journal of fisheries management
container_volume 17
creator Carlile, David W.
Dinnocenzo, Thomas A.
Watson, Leslie J.
description Use of crab pots to catch Pacific cod Gadus macrocephalus has increased in the Gulf of Alaska and Bering Sea. We evaluated a variety of crab pot modifications that we hoped would increase the catch of Pacific cod and decrease the bycatch of Pacific halibut Hippoglossus stenolepis. During September and October 1990, seven types of modified crab pots and one type of unmodified crab pot were fished during a 26‐d period. Pot modifications included one‐way fish retention devices (FRDs) and reductions in the size of tunnel‐eye openings. Pots with FRDs had significantly higher (P = 0.0001) catches of Pacific cod than pots without FRDs and tended to have the lowest bycatches of Pacific halibut. Pot tunnel‐eye opening dimensions of 20.3 × 17.8 cm significantly (P = 0.0001) reduced bycatch of Pacific halibut without significantly reducing the catch of Pacific cod. More than 90% of the Pacific halibut in all treatments were judged to be in “excellent” condition. Pacific halibut bycatch rates for pots with FRDs varied from 26.5 to 57.1 kg of Pacific halibut per metric ton of Pacific cod.
doi_str_mv 10.1577/1548-8675(1997)017<0910:EOMCPT>2.3.CO;2
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_879470503</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>14486005</sourcerecordid><originalsourceid>FETCH-LOGICAL-c2960-3abe73abf8505dda1a1bffd25a88bf21f100d4e158f70489e041c510ed3ab46e3</originalsourceid><addsrcrecordid>eNqdkctOwzAQRS0EEuXxD17xWKSMnTh2ACFBKA-ppV2UteX4IYJCDXEK6t_jqIgFC5DYzCzmzF3cg9AJgSFhnJ8QlolE5JwdkaLgx0D4ORQETkfTSTmbX9BhOiynZ3QDDb7JTTQAylnCioxvo50QngGACUYHqB69q2aputovsHd44k3tamtw2aoKz3wXcOfx_UK3VgWLS9Xpp56bKR05jUtvsFoYfG2_iKuV_sncqaault0e2nKqCXb_a--ix5vRvLxLxtPb-_JynGha5JCkqrI8DicYMGMUUaRyzlCmhKgcJY4AmMwSJhyHTBQWMqIZAWviU5bbdBcdrnNfW_-2tKGTL3XQtmnUwvplkILHFoBBGsmDX0mSU0Fzwv8Gs0zksdEI3q5B3foQWuvka1u_qHYlCcjenuydyN6J7O3JaE_29uTanqQyleVU0pg0WSd91I1d_TdGPlzeTPpD-gng1qaQ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>14486005</pqid></control><display><type>article</type><title>Evaluation of Modified Crab Pots to Increase Catch of Pacific Cod and Decrease Bycatch of Pacific Halibut</title><source>Wiley</source><creator>Carlile, David W. ; Dinnocenzo, Thomas A. ; Watson, Leslie J.</creator><creatorcontrib>Carlile, David W. ; Dinnocenzo, Thomas A. ; Watson, Leslie J.</creatorcontrib><description>Use of crab pots to catch Pacific cod Gadus macrocephalus has increased in the Gulf of Alaska and Bering Sea. We evaluated a variety of crab pot modifications that we hoped would increase the catch of Pacific cod and decrease the bycatch of Pacific halibut Hippoglossus stenolepis. During September and October 1990, seven types of modified crab pots and one type of unmodified crab pot were fished during a 26‐d period. Pot modifications included one‐way fish retention devices (FRDs) and reductions in the size of tunnel‐eye openings. Pots with FRDs had significantly higher (P = 0.0001) catches of Pacific cod than pots without FRDs and tended to have the lowest bycatches of Pacific halibut. Pot tunnel‐eye opening dimensions of 20.3 × 17.8 cm significantly (P = 0.0001) reduced bycatch of Pacific halibut without significantly reducing the catch of Pacific cod. More than 90% of the Pacific halibut in all treatments were judged to be in “excellent” condition. Pacific halibut bycatch rates for pots with FRDs varied from 26.5 to 57.1 kg of Pacific halibut per metric ton of Pacific cod.</description><identifier>ISSN: 0275-5947</identifier><identifier>EISSN: 1548-8675</identifier><identifier>DOI: 10.1577/1548-8675(1997)017&lt;0910:EOMCPT&gt;2.3.CO;2</identifier><language>eng</language><publisher>Taylor &amp; Francis Group</publisher><subject>Gadus macrocephalus ; Hippoglossus stenolepis ; Marine</subject><ispartof>North American journal of fisheries management, 1997-11, Vol.17 (4), p.910-928</ispartof><rights>1997 American Fisheries Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>Carlile, David W.</creatorcontrib><creatorcontrib>Dinnocenzo, Thomas A.</creatorcontrib><creatorcontrib>Watson, Leslie J.</creatorcontrib><title>Evaluation of Modified Crab Pots to Increase Catch of Pacific Cod and Decrease Bycatch of Pacific Halibut</title><title>North American journal of fisheries management</title><description>Use of crab pots to catch Pacific cod Gadus macrocephalus has increased in the Gulf of Alaska and Bering Sea. We evaluated a variety of crab pot modifications that we hoped would increase the catch of Pacific cod and decrease the bycatch of Pacific halibut Hippoglossus stenolepis. During September and October 1990, seven types of modified crab pots and one type of unmodified crab pot were fished during a 26‐d period. Pot modifications included one‐way fish retention devices (FRDs) and reductions in the size of tunnel‐eye openings. Pots with FRDs had significantly higher (P = 0.0001) catches of Pacific cod than pots without FRDs and tended to have the lowest bycatches of Pacific halibut. Pot tunnel‐eye opening dimensions of 20.3 × 17.8 cm significantly (P = 0.0001) reduced bycatch of Pacific halibut without significantly reducing the catch of Pacific cod. More than 90% of the Pacific halibut in all treatments were judged to be in “excellent” condition. Pacific halibut bycatch rates for pots with FRDs varied from 26.5 to 57.1 kg of Pacific halibut per metric ton of Pacific cod.</description><subject>Gadus macrocephalus</subject><subject>Hippoglossus stenolepis</subject><subject>Marine</subject><issn>0275-5947</issn><issn>1548-8675</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNqdkctOwzAQRS0EEuXxD17xWKSMnTh2ACFBKA-ppV2UteX4IYJCDXEK6t_jqIgFC5DYzCzmzF3cg9AJgSFhnJ8QlolE5JwdkaLgx0D4ORQETkfTSTmbX9BhOiynZ3QDDb7JTTQAylnCioxvo50QngGACUYHqB69q2aputovsHd44k3tamtw2aoKz3wXcOfx_UK3VgWLS9Xpp56bKR05jUtvsFoYfG2_iKuV_sncqaault0e2nKqCXb_a--ix5vRvLxLxtPb-_JynGha5JCkqrI8DicYMGMUUaRyzlCmhKgcJY4AmMwSJhyHTBQWMqIZAWviU5bbdBcdrnNfW_-2tKGTL3XQtmnUwvplkILHFoBBGsmDX0mSU0Fzwv8Gs0zksdEI3q5B3foQWuvka1u_qHYlCcjenuydyN6J7O3JaE_29uTanqQyleVU0pg0WSd91I1d_TdGPlzeTPpD-gng1qaQ</recordid><startdate>199711</startdate><enddate>199711</enddate><creator>Carlile, David W.</creator><creator>Dinnocenzo, Thomas A.</creator><creator>Watson, Leslie J.</creator><general>Taylor &amp; Francis Group</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope><scope>7SN</scope><scope>7TN</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>199711</creationdate><title>Evaluation of Modified Crab Pots to Increase Catch of Pacific Cod and Decrease Bycatch of Pacific Halibut</title><author>Carlile, David W. ; Dinnocenzo, Thomas A. ; Watson, Leslie J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2960-3abe73abf8505dda1a1bffd25a88bf21f100d4e158f70489e041c510ed3ab46e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Gadus macrocephalus</topic><topic>Hippoglossus stenolepis</topic><topic>Marine</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Carlile, David W.</creatorcontrib><creatorcontrib>Dinnocenzo, Thomas A.</creatorcontrib><creatorcontrib>Watson, Leslie J.</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><collection>Ecology Abstracts</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) 1: Biological Sciences &amp; Living Resources</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) Professional</collection><jtitle>North American journal of fisheries management</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Carlile, David W.</au><au>Dinnocenzo, Thomas A.</au><au>Watson, Leslie J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of Modified Crab Pots to Increase Catch of Pacific Cod and Decrease Bycatch of Pacific Halibut</atitle><jtitle>North American journal of fisheries management</jtitle><date>1997-11</date><risdate>1997</risdate><volume>17</volume><issue>4</issue><spage>910</spage><epage>928</epage><pages>910-928</pages><issn>0275-5947</issn><eissn>1548-8675</eissn><abstract>Use of crab pots to catch Pacific cod Gadus macrocephalus has increased in the Gulf of Alaska and Bering Sea. We evaluated a variety of crab pot modifications that we hoped would increase the catch of Pacific cod and decrease the bycatch of Pacific halibut Hippoglossus stenolepis. During September and October 1990, seven types of modified crab pots and one type of unmodified crab pot were fished during a 26‐d period. Pot modifications included one‐way fish retention devices (FRDs) and reductions in the size of tunnel‐eye openings. Pots with FRDs had significantly higher (P = 0.0001) catches of Pacific cod than pots without FRDs and tended to have the lowest bycatches of Pacific halibut. Pot tunnel‐eye opening dimensions of 20.3 × 17.8 cm significantly (P = 0.0001) reduced bycatch of Pacific halibut without significantly reducing the catch of Pacific cod. More than 90% of the Pacific halibut in all treatments were judged to be in “excellent” condition. Pacific halibut bycatch rates for pots with FRDs varied from 26.5 to 57.1 kg of Pacific halibut per metric ton of Pacific cod.</abstract><pub>Taylor &amp; Francis Group</pub><doi>10.1577/1548-8675(1997)017&lt;0910:EOMCPT&gt;2.3.CO;2</doi><tpages>19</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0275-5947
ispartof North American journal of fisheries management, 1997-11, Vol.17 (4), p.910-928
issn 0275-5947
1548-8675
language eng
recordid cdi_proquest_miscellaneous_879470503
source Wiley
subjects Gadus macrocephalus
Hippoglossus stenolepis
Marine
title Evaluation of Modified Crab Pots to Increase Catch of Pacific Cod and Decrease Bycatch of Pacific Halibut
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-08T15%3A02%3A40IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Evaluation%20of%20Modified%20Crab%20Pots%20to%20Increase%20Catch%20of%20Pacific%20Cod%20and%20Decrease%20Bycatch%20of%20Pacific%20Halibut&rft.jtitle=North%20American%20journal%20of%20fisheries%20management&rft.au=Carlile,%20David%20W.&rft.date=1997-11&rft.volume=17&rft.issue=4&rft.spage=910&rft.epage=928&rft.pages=910-928&rft.issn=0275-5947&rft.eissn=1548-8675&rft_id=info:doi/10.1577/1548-8675(1997)017%3C0910:EOMCPT%3E2.3.CO;2&rft_dat=%3Cproquest_cross%3E14486005%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c2960-3abe73abf8505dda1a1bffd25a88bf21f100d4e158f70489e041c510ed3ab46e3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=14486005&rft_id=info:pmid/&rfr_iscdi=true