Efficacy of conservation measures for the American lobster: reproductive value as a criterion
Abstract Xu, C., and Schneider, D. C. 2012. Efficacy of conservation measures for the American lobster: reproductive value as a criterion – ICES Journal of Marine Science, 69: 1831–1839. Reproductive value takes into account both current and future value, effectively characterizing the value of an i...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fss143 http://academic.oup.com/icesjms/article-pdf/69/10/1831/29149435/fss143.pdf |
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croxfordunivpr:10.1093/icesjms/fss143 2024-06-09T07:47:52+00:00 Efficacy of conservation measures for the American lobster: reproductive value as a criterion Xu, Cailin Schneider, David C. 2012 http://dx.doi.org/10.1093/icesjms/fss143 http://academic.oup.com/icesjms/article-pdf/69/10/1831/29149435/fss143.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 69, issue 10, page 1831-1839 ISSN 1095-9289 1054-3139 journal-article 2012 croxfordunivpr https://doi.org/10.1093/icesjms/fss143 2024-05-10T13:14:16Z Abstract Xu, C., and Schneider, D. C. 2012. Efficacy of conservation measures for the American lobster: reproductive value as a criterion – ICES Journal of Marine Science, 69: 1831–1839. Reproductive value takes into account both current and future value, effectively characterizing the value of an individual to the population. In this study, we use reproductive value as a criterion to evaluate the effectiveness of several conservation measures that have been undertaken or proposed for the American lobster (Homarus americanus) fishery in Newfoundland. These measures are slot fishing (i.e. no fishing below or above certain sizes), marine protected areas (MPAs), V-notching, and window fishing (i.e. no fishing within a size window). Reproductive value was estimated by using catch length data available from commercial fisheries and research surveys. We found that MPAs had the greatest effect, followed by V-notching and slot-fishing. MPAs resulted in an average increase of 64.9% in total reproductive value, V-notching an average increase of 18.3%, and slot fishing an average increase of 16.8%. In general, window fishing was not effective unless the size of the window was large. For instance, an average increase of 8.7% in total reproductive value would require a wide window (100–129 mm). Our results provide a scientific basis for evaluating conservation measures in a way that integrates population demographical information with information from commercial fisheries and research surveys. Article in Journal/Newspaper Newfoundland Oxford University Press ICES Journal of Marine Science 69 10 1831 1839 |
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Abstract Xu, C., and Schneider, D. C. 2012. Efficacy of conservation measures for the American lobster: reproductive value as a criterion – ICES Journal of Marine Science, 69: 1831–1839. Reproductive value takes into account both current and future value, effectively characterizing the value of an individual to the population. In this study, we use reproductive value as a criterion to evaluate the effectiveness of several conservation measures that have been undertaken or proposed for the American lobster (Homarus americanus) fishery in Newfoundland. These measures are slot fishing (i.e. no fishing below or above certain sizes), marine protected areas (MPAs), V-notching, and window fishing (i.e. no fishing within a size window). Reproductive value was estimated by using catch length data available from commercial fisheries and research surveys. We found that MPAs had the greatest effect, followed by V-notching and slot-fishing. MPAs resulted in an average increase of 64.9% in total reproductive value, V-notching an average increase of 18.3%, and slot fishing an average increase of 16.8%. In general, window fishing was not effective unless the size of the window was large. For instance, an average increase of 8.7% in total reproductive value would require a wide window (100–129 mm). Our results provide a scientific basis for evaluating conservation measures in a way that integrates population demographical information with information from commercial fisheries and research surveys. |
format |
Article in Journal/Newspaper |
author |
Xu, Cailin Schneider, David C. |
spellingShingle |
Xu, Cailin Schneider, David C. Efficacy of conservation measures for the American lobster: reproductive value as a criterion |
author_facet |
Xu, Cailin Schneider, David C. |
author_sort |
Xu, Cailin |
title |
Efficacy of conservation measures for the American lobster: reproductive value as a criterion |
title_short |
Efficacy of conservation measures for the American lobster: reproductive value as a criterion |
title_full |
Efficacy of conservation measures for the American lobster: reproductive value as a criterion |
title_fullStr |
Efficacy of conservation measures for the American lobster: reproductive value as a criterion |
title_full_unstemmed |
Efficacy of conservation measures for the American lobster: reproductive value as a criterion |
title_sort |
efficacy of conservation measures for the american lobster: reproductive value as a criterion |
publisher |
Oxford University Press (OUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1093/icesjms/fss143 http://academic.oup.com/icesjms/article-pdf/69/10/1831/29149435/fss143.pdf |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
ICES Journal of Marine Science volume 69, issue 10, page 1831-1839 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fss143 |
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ICES Journal of Marine Science |
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69 |
container_issue |
10 |
container_start_page |
1831 |
op_container_end_page |
1839 |
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1801379329482948608 |