The evaluation of reference points and stock productivity in the context of alternative indices of stock reproductive potential
In this study, we explore the impact of four alternative indices of reproductive potential (RP) on perceptions of population productivity for eight fish populations across the North Atlantic. The four indices of RP included increasing biological complexity, adding variation in maturation, sex ratio,...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Canadian Science Publishing
2009
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Online Access: | http://dx.doi.org/10.1139/f09-009 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F09-009 http://www.nrcresearchpress.com/doi/pdf/10.1139/F09-009 |
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crcansciencepubl:10.1139/f09-009 2024-09-15T18:23:12+00:00 The evaluation of reference points and stock productivity in the context of alternative indices of stock reproductive potential Morgan, M. J. Murua, H. Kraus, G. Lambert, Y. Marteinsdóttir, G. Marshall, C. T. O’Brien, L. Tomkiewicz, J. 2009 http://dx.doi.org/10.1139/f09-009 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F09-009 http://www.nrcresearchpress.com/doi/pdf/10.1139/F09-009 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 66, issue 3, page 404-414 ISSN 0706-652X 1205-7533 journal-article 2009 crcansciencepubl https://doi.org/10.1139/f09-009 2024-08-08T04:13:38Z In this study, we explore the impact of four alternative indices of reproductive potential (RP) on perceptions of population productivity for eight fish populations across the North Atlantic. The four indices of RP included increasing biological complexity, adding variation in maturation, sex ratio, and fecundity. Perceptions of stock productivity were greatly affected by the choice of index of RP. Population status relative to reference points, RP per recruit, and projections of population size all varied when alternative indices of RP were used. There was no consistency in which index of RP gave the highest or lowest estimate of population productivity, but rather, this varied depending on how much variation there was in the reproductive biology of the population and the age composition. Estimates of sustainable harvest levels and recovery time for depleted populations can vary greatly depending on the index of RP. Article in Journal/Newspaper North Atlantic Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 66 3 404 414 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
In this study, we explore the impact of four alternative indices of reproductive potential (RP) on perceptions of population productivity for eight fish populations across the North Atlantic. The four indices of RP included increasing biological complexity, adding variation in maturation, sex ratio, and fecundity. Perceptions of stock productivity were greatly affected by the choice of index of RP. Population status relative to reference points, RP per recruit, and projections of population size all varied when alternative indices of RP were used. There was no consistency in which index of RP gave the highest or lowest estimate of population productivity, but rather, this varied depending on how much variation there was in the reproductive biology of the population and the age composition. Estimates of sustainable harvest levels and recovery time for depleted populations can vary greatly depending on the index of RP. |
format |
Article in Journal/Newspaper |
author |
Morgan, M. J. Murua, H. Kraus, G. Lambert, Y. Marteinsdóttir, G. Marshall, C. T. O’Brien, L. Tomkiewicz, J. |
spellingShingle |
Morgan, M. J. Murua, H. Kraus, G. Lambert, Y. Marteinsdóttir, G. Marshall, C. T. O’Brien, L. Tomkiewicz, J. The evaluation of reference points and stock productivity in the context of alternative indices of stock reproductive potential |
author_facet |
Morgan, M. J. Murua, H. Kraus, G. Lambert, Y. Marteinsdóttir, G. Marshall, C. T. O’Brien, L. Tomkiewicz, J. |
author_sort |
Morgan, M. J. |
title |
The evaluation of reference points and stock productivity in the context of alternative indices of stock reproductive potential |
title_short |
The evaluation of reference points and stock productivity in the context of alternative indices of stock reproductive potential |
title_full |
The evaluation of reference points and stock productivity in the context of alternative indices of stock reproductive potential |
title_fullStr |
The evaluation of reference points and stock productivity in the context of alternative indices of stock reproductive potential |
title_full_unstemmed |
The evaluation of reference points and stock productivity in the context of alternative indices of stock reproductive potential |
title_sort |
evaluation of reference points and stock productivity in the context of alternative indices of stock reproductive potential |
publisher |
Canadian Science Publishing |
publishDate |
2009 |
url |
http://dx.doi.org/10.1139/f09-009 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F09-009 http://www.nrcresearchpress.com/doi/pdf/10.1139/F09-009 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 66, issue 3, page 404-414 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f09-009 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
66 |
container_issue |
3 |
container_start_page |
404 |
op_container_end_page |
414 |
_version_ |
1810463357086466048 |