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Density-dependent growth in ‘catch-and-wait’ fisheries has implications for fisheries management and Marine Protected Areas

Stock enhancement activities provide an opportunity to examine density-dependent suppression of population biomass which is a fundamental issue for resource management and design of no-take-zones. We document ‘catch-and-wait’ fisheries enhancement where all but the largest lobsters are thrown back,...

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Autores principales: Merder, Julian, Browne, Patricia, Freund, Jan A., Fullbrook, Liam, Graham, Conor, Johnson, Mark P., Wieczorek, Alina, Power, Anne Marie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Netherlands 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6889112/
https://www.ncbi.nlm.nih.gov/pubmed/30852778
http://dx.doi.org/10.1007/s13280-019-01158-1
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author Merder, Julian
Browne, Patricia
Freund, Jan A.
Fullbrook, Liam
Graham, Conor
Johnson, Mark P.
Wieczorek, Alina
Power, Anne Marie
author_facet Merder, Julian
Browne, Patricia
Freund, Jan A.
Fullbrook, Liam
Graham, Conor
Johnson, Mark P.
Wieczorek, Alina
Power, Anne Marie
author_sort Merder, Julian
collection PubMed
description Stock enhancement activities provide an opportunity to examine density-dependent suppression of population biomass which is a fundamental issue for resource management and design of no-take-zones. We document ‘catch-and-wait’ fisheries enhancement where all but the largest lobsters are thrown back, recapturing them later after they have grown to a larger size. The residency, rate of return, and potential negative density-dependent effects of this activity are described using a combination of tagging and v-notching and by relating spatial growth patterns to population density defined with Catch Per Unit Effort. The results successfully demonstrated the concept of catch-and-wait practices. However, a density-dependent suppression of growth (in body size) was observed in male lobsters. This demonstrates a mechanism to explain differences in lobster sizes previously observed across EU fishing grounds with different stock densities. This negative effect of density could also affect individual biomass production in marine reserve or no-take zones. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s13280-019-01158-1) contains supplementary material, which is available to authorized users.
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spelling pubmed-68891122019-12-16 Density-dependent growth in ‘catch-and-wait’ fisheries has implications for fisheries management and Marine Protected Areas Merder, Julian Browne, Patricia Freund, Jan A. Fullbrook, Liam Graham, Conor Johnson, Mark P. Wieczorek, Alina Power, Anne Marie Ambio Research Article Stock enhancement activities provide an opportunity to examine density-dependent suppression of population biomass which is a fundamental issue for resource management and design of no-take-zones. We document ‘catch-and-wait’ fisheries enhancement where all but the largest lobsters are thrown back, recapturing them later after they have grown to a larger size. The residency, rate of return, and potential negative density-dependent effects of this activity are described using a combination of tagging and v-notching and by relating spatial growth patterns to population density defined with Catch Per Unit Effort. The results successfully demonstrated the concept of catch-and-wait practices. However, a density-dependent suppression of growth (in body size) was observed in male lobsters. This demonstrates a mechanism to explain differences in lobster sizes previously observed across EU fishing grounds with different stock densities. This negative effect of density could also affect individual biomass production in marine reserve or no-take zones. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s13280-019-01158-1) contains supplementary material, which is available to authorized users. Springer Netherlands 2019-03-09 2020-01 /pmc/articles/PMC6889112/ /pubmed/30852778 http://dx.doi.org/10.1007/s13280-019-01158-1 Text en © The Author(s) 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Research Article
Merder, Julian
Browne, Patricia
Freund, Jan A.
Fullbrook, Liam
Graham, Conor
Johnson, Mark P.
Wieczorek, Alina
Power, Anne Marie
Density-dependent growth in ‘catch-and-wait’ fisheries has implications for fisheries management and Marine Protected Areas
title Density-dependent growth in ‘catch-and-wait’ fisheries has implications for fisheries management and Marine Protected Areas
title_full Density-dependent growth in ‘catch-and-wait’ fisheries has implications for fisheries management and Marine Protected Areas
title_fullStr Density-dependent growth in ‘catch-and-wait’ fisheries has implications for fisheries management and Marine Protected Areas
title_full_unstemmed Density-dependent growth in ‘catch-and-wait’ fisheries has implications for fisheries management and Marine Protected Areas
title_short Density-dependent growth in ‘catch-and-wait’ fisheries has implications for fisheries management and Marine Protected Areas
title_sort density-dependent growth in ‘catch-and-wait’ fisheries has implications for fisheries management and marine protected areas
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6889112/
https://www.ncbi.nlm.nih.gov/pubmed/30852778
http://dx.doi.org/10.1007/s13280-019-01158-1
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