Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod
Abstract 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: 946–952. Recruitment (R) of exploited marine fish populations is usually modelled exclusively as a function of spawning-stock biomass...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsn081 http://academic.oup.com/icesjms/article-pdf/65/6/946/29131395/fsn081.pdf |
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croxfordunivpr:10.1093/icesjms/fsn081 2023-10-01T03:54:31+02:00 Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod Duplisea, Daniel E. Robert, Dominique 2008 http://dx.doi.org/10.1093/icesjms/fsn081 http://academic.oup.com/icesjms/article-pdf/65/6/946/29131395/fsn081.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 65, issue 6, page 946-952 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2008 croxfordunivpr https://doi.org/10.1093/icesjms/fsn081 2023-09-08T10:47:12Z Abstract 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: 946–952. 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. Article in Journal/Newspaper atlantic cod Oxford University Press (via Crossref) ICES Journal of Marine Science 65 6 946 952 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Duplisea, Daniel E. Robert, Dominique Prerecruit survival and recruitment of northern Gulf of St Lawrence Atlantic cod |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract 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: 946–952. 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 |
Article in Journal/Newspaper |
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 (OUP) |
publishDate |
2008 |
url |
http://dx.doi.org/10.1093/icesjms/fsn081 http://academic.oup.com/icesjms/article-pdf/65/6/946/29131395/fsn081.pdf |
genre |
atlantic cod |
genre_facet |
atlantic cod |
op_source |
ICES Journal of Marine Science volume 65, issue 6, page 946-952 ISSN 1095-9289 1054-3139 |
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_ |
1778522279760625664 |