Does increased information about reproductive potential result in better prediction of recruitment?
The relationship between stock size and recruitment is an essential element in the understanding of the productivity of a population. However, predicting the number of recruits produced by a population has proven to be a difficult challenge. This may in part be a result of poor estimation of reprodu...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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2011
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Online Access: | http://dx.doi.org/10.1139/f2011-049 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2011-049 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2011-049 |
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crcansciencepubl:10.1139/f2011-049 2024-05-12T08:03:53+00:00 Does increased information about reproductive potential result in better prediction of recruitment? Morgan, M. Joanne Perez-Rodriguez, Alfonso Saborido-Rey, Fran Marshall, C. Tara 2011 http://dx.doi.org/10.1139/f2011-049 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2011-049 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2011-049 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 68, issue 8, page 1361-1368 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2011 crcansciencepubl https://doi.org/10.1139/f2011-049 2024-04-18T06:54:52Z The relationship between stock size and recruitment is an essential element in the understanding of the productivity of a population. However, predicting the number of recruits produced by a population has proven to be a difficult challenge. This may in part be a result of poor estimation of reproductive potential (RP). We determined if including increased information on reproductive biology in indices of RP results in better predictions of recruitment. We investigated some of the conditions that lead to better (or worse) recruitment prediction when more biologically complex indices of RP are used. Data from four populations in the Northwest Atlantic were examined: southern Grand Bank (NAFO Division 3NO) cod ( Gadus morhua ), Flemish Cap (NAFO Division 3M) cod, Newfoundland (NAFO Division 3LNO) American plaice ( Hippoglossoides platessoides ), and Greenland halibut ( Reinhardtius hippoglossoides ) (NAFO Subarea 2 + Division 3KLMNO). Stock–recruit models paired with complex indices of RP gave a better estimate of recruitment in slightly more than half of the tests conducted. When there were larger trends in the reproductive biology (maturity at age, sex ratio and egg production), more complex indices of RP were more likely to provide a better estimate of recruitment. Article in Journal/Newspaper Gadus morhua Greenland Newfoundland Northwest Atlantic Canadian Science Publishing Greenland Canadian Journal of Fisheries and Aquatic Sciences 68 8 1361 1368 |
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Open Polar |
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Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Morgan, M. Joanne Perez-Rodriguez, Alfonso Saborido-Rey, Fran Does increased information about reproductive potential result in better prediction of recruitment? |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
The relationship between stock size and recruitment is an essential element in the understanding of the productivity of a population. However, predicting the number of recruits produced by a population has proven to be a difficult challenge. This may in part be a result of poor estimation of reproductive potential (RP). We determined if including increased information on reproductive biology in indices of RP results in better predictions of recruitment. We investigated some of the conditions that lead to better (or worse) recruitment prediction when more biologically complex indices of RP are used. Data from four populations in the Northwest Atlantic were examined: southern Grand Bank (NAFO Division 3NO) cod ( Gadus morhua ), Flemish Cap (NAFO Division 3M) cod, Newfoundland (NAFO Division 3LNO) American plaice ( Hippoglossoides platessoides ), and Greenland halibut ( Reinhardtius hippoglossoides ) (NAFO Subarea 2 + Division 3KLMNO). Stock–recruit models paired with complex indices of RP gave a better estimate of recruitment in slightly more than half of the tests conducted. When there were larger trends in the reproductive biology (maturity at age, sex ratio and egg production), more complex indices of RP were more likely to provide a better estimate of recruitment. |
author2 |
Marshall, C. Tara |
format |
Article in Journal/Newspaper |
author |
Morgan, M. Joanne Perez-Rodriguez, Alfonso Saborido-Rey, Fran |
author_facet |
Morgan, M. Joanne Perez-Rodriguez, Alfonso Saborido-Rey, Fran |
author_sort |
Morgan, M. Joanne |
title |
Does increased information about reproductive potential result in better prediction of recruitment? |
title_short |
Does increased information about reproductive potential result in better prediction of recruitment? |
title_full |
Does increased information about reproductive potential result in better prediction of recruitment? |
title_fullStr |
Does increased information about reproductive potential result in better prediction of recruitment? |
title_full_unstemmed |
Does increased information about reproductive potential result in better prediction of recruitment? |
title_sort |
does increased information about reproductive potential result in better prediction of recruitment? |
publisher |
Canadian Science Publishing |
publishDate |
2011 |
url |
http://dx.doi.org/10.1139/f2011-049 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2011-049 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2011-049 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Gadus morhua Greenland Newfoundland Northwest Atlantic |
genre_facet |
Gadus morhua Greenland Newfoundland Northwest Atlantic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 68, issue 8, page 1361-1368 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f2011-049 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
68 |
container_issue |
8 |
container_start_page |
1361 |
op_container_end_page |
1368 |
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1798846015992758272 |