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Variable natural mortality rate of juvenile Norwegian spring-spawning herring (Clupea harengus L.) in the Barents Sea

dc.contributor.authorde Barros, P
dc.contributor.authorToresen, R
dc.date.accessioned2018-12-07T14:53:36Z
dc.date.available2018-12-07T14:53:36Z
dc.date.issued1998-06
dc.description.abstractUnderstanding the patterns of mortality rate in the juvenile stages of exploited fish populations is essential for improving current stock assessment procedures. Most of the research on "the recruitment problem" has focused on the larval stages, but recent work. indicates that a large part of the variability in year-class strength may be associated to variable mortality rates during the juvenile stages. The data on abundance of juvenile Norwegian spring-spawning herring in the Barents Sea collected by the Bergen Institute of Marine Rest-arch between 1983 and 1993 was analysed iv test this hypothesis. The results give strong support to the hypothesis. Survival from the start of the 0-group stage to age 3 years may have varied from 0 to 30% for the cohorts investigated. Mortality rate is shown to be strongly age-dependent. and between 75% and 99% of the total juvenile mortality occurs during the first year of life. (C), 1998 International Council for the Exploration of the Sea.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1006/jmsc.1997.0346
dc.identifier.issn1054-3139
dc.identifier.urihttp://hdl.handle.net/10400.1/11592
dc.language.isoeng
dc.peerreviewedyes
dc.publisherAcademic Press Ltd
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectMarine Demersal Fish
dc.subjectBootstrap
dc.subjectStocks
dc.titleVariable natural mortality rate of juvenile Norwegian spring-spawning herring (Clupea harengus L.) in the Barents Sea
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceREYKJAVIK, ICELAND
oaire.citation.endPage442
oaire.citation.issue3
oaire.citation.startPage430
oaire.citation.titleICES Journal of Marine Science
oaire.citation.titleMini-Symposium On Ecosystem Effects of Fishing, At the 1996 Ices Annual Science Conference
oaire.citation.volume55
rcaap.rightsopenAccess
rcaap.typearticle

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