Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod
<qd> Duplisea, D. E., and Robert, D. 2008. Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod. – ICES Journal of Marine Science, 65. </qd>Recruitment ( R ) of exploited marine fish populations is usually modelled exclusively as a function of spawning-stock b...
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fthighwire:oai:open-archive.highwire.org:icesjms:fsn081v1 2023-05-15T15:27:11+02:00 Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod Duplisea, Daniel E. Robert, Dominique 2008-05-16 06:01:20.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/fsn081v1 https://doi.org/10.1093/icesjms/fsn081 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/fsn081v1 http://dx.doi.org/10.1093/icesjms/fsn081 Copyright (C) 2008, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Article TEXT 2008 fthighwire https://doi.org/10.1093/icesjms/fsn081 2013-05-26T22:26:33Z <qd> Duplisea, D. E., and Robert, D. 2008. Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod. – ICES Journal of Marine Science, 65. </qd>Recruitment ( R ) of exploited marine fish populations is usually modelled exclusively as a function of spawning-stock biomass (SSB). A problem arising when modelling over long time-series is that the nature of the R –SSB relationship is unlikely to be stationary. Changes are often interpreted as productivity regime shifts and are linked to alterations in prerecruit survival rate. We examine the role of environment and predation by fish and harp seals as factors affecting the R –SSB relationship in the northern Gulf of St Lawrence cod, by fitting linear models using combinations of covariates to explain cod prerecruit survival. The most parsimonious model (based on a Bayesian Information Criterion, BIC) included cod, mackerel, and temperature, whereas redfish and seals did not appear in any of the best-fit models. Recruitment models derived from this analysis could be used in operating models for management strategy evaluation simulations for northern Gulf cod, so one could develop harvest control rules that are robust to changes in recruitment productivity regimes. Text atlantic cod HighWire Press (Stanford University) ICES Journal of Marine Science 65 6 946 952 |
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Article Duplisea, Daniel E. Robert, Dominique Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod |
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<qd> Duplisea, D. E., and Robert, D. 2008. Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod. – ICES Journal of Marine Science, 65. </qd>Recruitment ( R ) of exploited marine fish populations is usually modelled exclusively as a function of spawning-stock biomass (SSB). A problem arising when modelling over long time-series is that the nature of the R –SSB relationship is unlikely to be stationary. Changes are often interpreted as productivity regime shifts and are linked to alterations in prerecruit survival rate. We examine the role of environment and predation by fish and harp seals as factors affecting the R –SSB relationship in the northern Gulf of St Lawrence cod, by fitting linear models using combinations of covariates to explain cod prerecruit survival. The most parsimonious model (based on a Bayesian Information Criterion, BIC) included cod, mackerel, and temperature, whereas redfish and seals did not appear in any of the best-fit models. Recruitment models derived from this analysis could be used in operating models for management strategy evaluation simulations for northern Gulf cod, so one could develop harvest control rules that are robust to changes in recruitment productivity regimes. |
format |
Text |
author |
Duplisea, Daniel E. Robert, Dominique |
author_facet |
Duplisea, Daniel E. Robert, Dominique |
author_sort |
Duplisea, Daniel E. |
title |
Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod |
title_short |
Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod |
title_full |
Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod |
title_fullStr |
Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod |
title_full_unstemmed |
Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod |
title_sort |
prerecruit survival and recruitment of northern gulf of st lawrence atlantic cod |
publisher |
Oxford University Press |
publishDate |
2008 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/fsn081v1 https://doi.org/10.1093/icesjms/fsn081 |
genre |
atlantic cod |
genre_facet |
atlantic cod |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/fsn081v1 http://dx.doi.org/10.1093/icesjms/fsn081 |
op_rights |
Copyright (C) 2008, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fsn081 |
container_title |
ICES Journal of Marine Science |
container_volume |
65 |
container_issue |
6 |
container_start_page |
946 |
op_container_end_page |
952 |
_version_ |
1766357639688617984 |