Increased population density of pike Esox lucius- a result of selective harvest of large individuals

The effect of selective harvest of large pike on number of middle-sized pike was tested in a small, eutrophic lake in SE Norway. The pike population was estimated using a mark-recapture method in two different periods: before (1980-1983) and during the manipulation of the pike population (2004-2006)...

Full description

Saved in:
Bibliographic Details
Published in:Ecology of freshwater fish 2008-12, Vol.17 (4), p.590-596
Main Authors: Sharma, C.M, Borgstrøm, R
Format: Article
Language:English
Subjects:
cannibalism
Esox
Freshwater
pike
population density
selective harvest
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by cdi_FETCH-LOGICAL-c4050-69bfe5dfe74a9d3d50db829478fb5a1ce199431853aed4f5c00a1c2971c2d9583
cites cdi_FETCH-LOGICAL-c4050-69bfe5dfe74a9d3d50db829478fb5a1ce199431853aed4f5c00a1c2971c2d9583
container_end_page 596
container_issue 4
container_start_page 590
container_title Ecology of freshwater fish
container_volume 17
creator Sharma, C.M
Borgstrøm, R
description The effect of selective harvest of large pike on number of middle-sized pike was tested in a small, eutrophic lake in SE Norway. The pike population was estimated using a mark-recapture method in two different periods: before (1980-1983) and during the manipulation of the pike population (2004-2006). After an extensive size selective harvest of large pike (greater-than-or-equal65 cm) in 2004, the number of pike in length-class 45-65 cm, mainly 3+ pike, increased significantly from 2004 to 2005. The number in this length-class was even higher in 2006. Since 2+ pike was part of the diet of large pike, the increase in number of 3+ pike in 2005 and 2006 is probably due to reduced consumption of 2+ pike, following the substantial selective removal of large pike in 2004 and 2005. To maintain a high annual survival of young pike, a selective exploitation of large pike has to be carried out annually.
doi_str_mv 10.1111/j.1600-0633.2008.00310.x
format article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_19661411</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>19661411</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4050-69bfe5dfe74a9d3d50db829478fb5a1ce199431853aed4f5c00a1c2971c2d9583</originalsourceid><addsrcrecordid>eNqNkEFv1DAQhS0EEkvhN-ATtyzjOHZiiQta7baVVnCAiuPIG0-Kt2kS7GS7--9xGtQzPnisee8b248xLmAt0vp8XAsNkIGWcp0DVGsAmbTzK7Z6EV6zFRjQmdZGvGXvYjwCiNyU-Yq5264OZCM5PvTD1NrR9x131EU_Xnjf8ME_EN_G_szbqfZTzLjlgeLUjrMaqaV69Cfiv204UXxutjbcE_ed8yfvJtvG9-xNkwp9-Fev2N1u-3Nzk-2_X99uvu6zugAFmTaHhpRrqCyscdIpcIcqN0VZNQdlRU3CmEKKSklLrmhUDZC66R9pc0ZV8op9WuYOof8zpdfgo481ta3tqJ8iCqO1KIRIxmox1qGPMVCDQ_CPNlxQAM6x4hHn9HBOD-dY8TlWPCf0y4I--ZYu_83hdrdLh4RnC-7jSOcX3IYH1KUsFf76do1qL6DYyBJvkv_j4m9sj_Y--Ih3P3IQEoTSIk_3_AUC6pai</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>19661411</pqid></control><display><type>article</type><title>Increased population density of pike Esox lucius- a result of selective harvest of large individuals</title><source>Wiley</source><creator>Sharma, C.M ; Borgstrøm, R</creator><creatorcontrib>Sharma, C.M ; Borgstrøm, R</creatorcontrib><description>The effect of selective harvest of large pike on number of middle-sized pike was tested in a small, eutrophic lake in SE Norway. The pike population was estimated using a mark-recapture method in two different periods: before (1980-1983) and during the manipulation of the pike population (2004-2006). After an extensive size selective harvest of large pike (greater-than-or-equal65 cm) in 2004, the number of pike in length-class 45-65 cm, mainly 3+ pike, increased significantly from 2004 to 2005. The number in this length-class was even higher in 2006. Since 2+ pike was part of the diet of large pike, the increase in number of 3+ pike in 2005 and 2006 is probably due to reduced consumption of 2+ pike, following the substantial selective removal of large pike in 2004 and 2005. To maintain a high annual survival of young pike, a selective exploitation of large pike has to be carried out annually.</description><identifier>ISSN: 0906-6691</identifier><identifier>EISSN: 1600-0633</identifier><identifier>DOI: 10.1111/j.1600-0633.2008.00310.x</identifier><language>eng</language><publisher>Oxford, UK: Oxford, UK : Blackwell Publishing Ltd</publisher><subject>cannibalism ; Esox ; Freshwater ; pike ; population density ; selective harvest</subject><ispartof>Ecology of freshwater fish, 2008-12, Vol.17 (4), p.590-596</ispartof><rights>2008 The Authors. Journal compilation © 2008 Blackwell Munksgaard</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4050-69bfe5dfe74a9d3d50db829478fb5a1ce199431853aed4f5c00a1c2971c2d9583</citedby><cites>FETCH-LOGICAL-c4050-69bfe5dfe74a9d3d50db829478fb5a1ce199431853aed4f5c00a1c2971c2d9583</cites></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>Sharma, C.M</creatorcontrib><creatorcontrib>Borgstrøm, R</creatorcontrib><title>Increased population density of pike Esox lucius- a result of selective harvest of large individuals</title><title>Ecology of freshwater fish</title><description>The effect of selective harvest of large pike on number of middle-sized pike was tested in a small, eutrophic lake in SE Norway. The pike population was estimated using a mark-recapture method in two different periods: before (1980-1983) and during the manipulation of the pike population (2004-2006). After an extensive size selective harvest of large pike (greater-than-or-equal65 cm) in 2004, the number of pike in length-class 45-65 cm, mainly 3+ pike, increased significantly from 2004 to 2005. The number in this length-class was even higher in 2006. Since 2+ pike was part of the diet of large pike, the increase in number of 3+ pike in 2005 and 2006 is probably due to reduced consumption of 2+ pike, following the substantial selective removal of large pike in 2004 and 2005. To maintain a high annual survival of young pike, a selective exploitation of large pike has to be carried out annually.</description><subject>cannibalism</subject><subject>Esox</subject><subject>Freshwater</subject><subject>pike</subject><subject>population density</subject><subject>selective harvest</subject><issn>0906-6691</issn><issn>1600-0633</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqNkEFv1DAQhS0EEkvhN-ATtyzjOHZiiQta7baVVnCAiuPIG0-Kt2kS7GS7--9xGtQzPnisee8b248xLmAt0vp8XAsNkIGWcp0DVGsAmbTzK7Z6EV6zFRjQmdZGvGXvYjwCiNyU-Yq5264OZCM5PvTD1NrR9x131EU_Xnjf8ME_EN_G_szbqfZTzLjlgeLUjrMaqaV69Cfiv204UXxutjbcE_ed8yfvJtvG9-xNkwp9-Fev2N1u-3Nzk-2_X99uvu6zugAFmTaHhpRrqCyscdIpcIcqN0VZNQdlRU3CmEKKSklLrmhUDZC66R9pc0ZV8op9WuYOof8zpdfgo481ta3tqJ8iCqO1KIRIxmox1qGPMVCDQ_CPNlxQAM6x4hHn9HBOD-dY8TlWPCf0y4I--ZYu_83hdrdLh4RnC-7jSOcX3IYH1KUsFf76do1qL6DYyBJvkv_j4m9sj_Y--Ih3P3IQEoTSIk_3_AUC6pai</recordid><startdate>200812</startdate><enddate>200812</enddate><creator>Sharma, C.M</creator><creator>Borgstrøm, R</creator><general>Oxford, UK : Blackwell Publishing Ltd</general><general>Blackwell Publishing Ltd</general><scope>FBQ</scope><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>H97</scope><scope>L.G</scope></search><sort><creationdate>200812</creationdate><title>Increased population density of pike Esox lucius- a result of selective harvest of large individuals</title><author>Sharma, C.M ; Borgstrøm, R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4050-69bfe5dfe74a9d3d50db829478fb5a1ce199431853aed4f5c00a1c2971c2d9583</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>cannibalism</topic><topic>Esox</topic><topic>Freshwater</topic><topic>pike</topic><topic>population density</topic><topic>selective harvest</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sharma, C.M</creatorcontrib><creatorcontrib>Borgstrøm, R</creatorcontrib><collection>AGRIS</collection><collection>Istex</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environmental Sciences and Pollution Management</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) 3: Aquatic Pollution &amp; Environmental Quality</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) Professional</collection><jtitle>Ecology of freshwater fish</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sharma, C.M</au><au>Borgstrøm, R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Increased population density of pike Esox lucius- a result of selective harvest of large individuals</atitle><jtitle>Ecology of freshwater fish</jtitle><date>2008-12</date><risdate>2008</risdate><volume>17</volume><issue>4</issue><spage>590</spage><epage>596</epage><pages>590-596</pages><issn>0906-6691</issn><eissn>1600-0633</eissn><abstract>The effect of selective harvest of large pike on number of middle-sized pike was tested in a small, eutrophic lake in SE Norway. The pike population was estimated using a mark-recapture method in two different periods: before (1980-1983) and during the manipulation of the pike population (2004-2006). After an extensive size selective harvest of large pike (greater-than-or-equal65 cm) in 2004, the number of pike in length-class 45-65 cm, mainly 3+ pike, increased significantly from 2004 to 2005. The number in this length-class was even higher in 2006. Since 2+ pike was part of the diet of large pike, the increase in number of 3+ pike in 2005 and 2006 is probably due to reduced consumption of 2+ pike, following the substantial selective removal of large pike in 2004 and 2005. To maintain a high annual survival of young pike, a selective exploitation of large pike has to be carried out annually.</abstract><cop>Oxford, UK</cop><pub>Oxford, UK : Blackwell Publishing Ltd</pub><doi>10.1111/j.1600-0633.2008.00310.x</doi><tpages>7</tpages></addata></record>
fulltext fulltext
identifier ISSN: 0906-6691
ispartof Ecology of freshwater fish, 2008-12, Vol.17 (4), p.590-596
issn 0906-6691
1600-0633
language eng
recordid cdi_proquest_miscellaneous_19661411
source Wiley
subjects cannibalism
Esox
Freshwater
pike
population density
selective harvest
title Increased population density of pike Esox lucius- a result of selective harvest of large individuals
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-13T00%3A29%3A06IST&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=Increased%20population%20density%20of%20pike%20Esox%20lucius-%20a%20result%20of%20selective%20harvest%20of%20large%20individuals&rft.jtitle=Ecology%20of%20freshwater%20fish&rft.au=Sharma,%20C.M&rft.date=2008-12&rft.volume=17&rft.issue=4&rft.spage=590&rft.epage=596&rft.pages=590-596&rft.issn=0906-6691&rft.eissn=1600-0633&rft_id=info:doi/10.1111/j.1600-0633.2008.00310.x&rft_dat=%3Cproquest_cross%3E19661411%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c4050-69bfe5dfe74a9d3d50db829478fb5a1ce199431853aed4f5c00a1c2971c2d9583%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=19661411&rft_id=info:pmid/&rfr_iscdi=true