Efficacy of conservation measures for the American lobster: reproductive value as a criterion
<qd> 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. </qd> Reproductive value takes into account both current and future value, effectively characterizing the...
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fthighwire:oai:open-archive.highwire.org:icesjms:69/10/1831 2023-05-15T17:22:32+02:00 Efficacy of conservation measures for the American lobster: reproductive value as a criterion Xu, Cailin Schneider, David C. 2012-12-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/69/10/1831 https://doi.org/10.1093/icesjms/fss143 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/69/10/1831 http://dx.doi.org/10.1093/icesjms/fss143 Copyright (C) 2012, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Articles TEXT 2012 fthighwire https://doi.org/10.1093/icesjms/fss143 2012-10-19T20:54:22Z <qd> 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. </qd> 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. Text Newfoundland HighWire Press (Stanford University) ICES Journal of Marine Science 69 10 1831 1839 |
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Articles Xu, Cailin Schneider, David C. Efficacy of conservation measures for the American lobster: reproductive value as a criterion |
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<qd> 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. </qd> 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 |
Text |
author |
Xu, Cailin Schneider, David C. |
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 |
publishDate |
2012 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/69/10/1831 https://doi.org/10.1093/icesjms/fss143 |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/69/10/1831 http://dx.doi.org/10.1093/icesjms/fss143 |
op_rights |
Copyright (C) 2012, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fss143 |
container_title |
ICES Journal of Marine Science |
container_volume |
69 |
container_issue |
10 |
container_start_page |
1831 |
op_container_end_page |
1839 |
_version_ |
1766109248296583168 |