Data and code from: Protection from fishing improves body growth of an exploited species
Hunting and fishing are often size-selective which favours slow body growth. In addition, fast growth rate has been shown to be positively correlated with behavioural traits that increase encounter rates and catchability in passive fishing gears such as baited traps. This harvest-induced selection s...
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ftzenodo:oai:zenodo.org:7341586 2024-09-09T19:39:31+00:00 Data and code from: Protection from fishing improves body growth of an exploited species Sørdalen, Tonje Knutsen Halvorsen, Kim Tallaksen Olsen, Esben Moland 2022-11-22 https://doi.org/10.5281/zenodo.7341586 unknown Zenodo https://doi.org/10.5061/dryad.ht76hdrft https://zenodo.org/communities/dryad https://doi.org/10.5281/zenodo.7341585 https://doi.org/10.5281/zenodo.7341586 oai:zenodo.org:7341586 info:eu-repo/semantics/openAccess MIT License https://opensource.org/licenses/MIT marine protected areas (MPAs) Density-dependence European lobster Marine reserves selective harvesting Phenotypic rescue info:eu-repo/semantics/other 2022 ftzenodo https://doi.org/10.5281/zenodo.734158610.5061/dryad.ht76hdrft10.5281/zenodo.7341585 2024-07-25T14:34:10Z Hunting and fishing are often size-selective which favours slow body growth. In addition, fast growth rate has been shown to be positively correlated with behavioural traits that increase encounter rates and catchability in passive fishing gears such as baited traps. This harvest-induced selection should be effectively eliminated in no-take marine-protected areas (MPAs) unless strong density dependence results in reduced growth rates. We compared the body growth of European lobster ( Homarus gammarus ) between three MPAs and three fished areas. After 14 years of protection from intensive, size-selective lobster fisheries, the densities in MPAs have increased considerably, and we demonstrate that females moult more frequently and grow more during each moult in the MPAs. A similar, but weaker pattern was evident for males. This study suggests that MPAs can shield a wild population from slow-growth selection, which can explain the rapid recovery of size structure following implementation. If slow-growth selection is a widespread phenomenon in fisheries, the effectiveness of MPAs as a management tool can be higher than currently anticipated. Funding provided by: Universitetet i Agder Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100012704 Award Number: Funding provided by: Havforskningsinstituttet Crossref Funder Registry ID: http://dx.doi.org/10.13039/100016931 Award Number: Other/Unknown Material European lobster Homarus gammarus Zenodo |
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marine protected areas (MPAs) Density-dependence European lobster Marine reserves selective harvesting Phenotypic rescue |
spellingShingle |
marine protected areas (MPAs) Density-dependence European lobster Marine reserves selective harvesting Phenotypic rescue Sørdalen, Tonje Knutsen Halvorsen, Kim Tallaksen Olsen, Esben Moland Data and code from: Protection from fishing improves body growth of an exploited species |
topic_facet |
marine protected areas (MPAs) Density-dependence European lobster Marine reserves selective harvesting Phenotypic rescue |
description |
Hunting and fishing are often size-selective which favours slow body growth. In addition, fast growth rate has been shown to be positively correlated with behavioural traits that increase encounter rates and catchability in passive fishing gears such as baited traps. This harvest-induced selection should be effectively eliminated in no-take marine-protected areas (MPAs) unless strong density dependence results in reduced growth rates. We compared the body growth of European lobster ( Homarus gammarus ) between three MPAs and three fished areas. After 14 years of protection from intensive, size-selective lobster fisheries, the densities in MPAs have increased considerably, and we demonstrate that females moult more frequently and grow more during each moult in the MPAs. A similar, but weaker pattern was evident for males. This study suggests that MPAs can shield a wild population from slow-growth selection, which can explain the rapid recovery of size structure following implementation. If slow-growth selection is a widespread phenomenon in fisheries, the effectiveness of MPAs as a management tool can be higher than currently anticipated. Funding provided by: Universitetet i Agder Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100012704 Award Number: Funding provided by: Havforskningsinstituttet Crossref Funder Registry ID: http://dx.doi.org/10.13039/100016931 Award Number: |
format |
Other/Unknown Material |
author |
Sørdalen, Tonje Knutsen Halvorsen, Kim Tallaksen Olsen, Esben Moland |
author_facet |
Sørdalen, Tonje Knutsen Halvorsen, Kim Tallaksen Olsen, Esben Moland |
author_sort |
Sørdalen, Tonje Knutsen |
title |
Data and code from: Protection from fishing improves body growth of an exploited species |
title_short |
Data and code from: Protection from fishing improves body growth of an exploited species |
title_full |
Data and code from: Protection from fishing improves body growth of an exploited species |
title_fullStr |
Data and code from: Protection from fishing improves body growth of an exploited species |
title_full_unstemmed |
Data and code from: Protection from fishing improves body growth of an exploited species |
title_sort |
data and code from: protection from fishing improves body growth of an exploited species |
publisher |
Zenodo |
publishDate |
2022 |
url |
https://doi.org/10.5281/zenodo.7341586 |
genre |
European lobster Homarus gammarus |
genre_facet |
European lobster Homarus gammarus |
op_relation |
https://doi.org/10.5061/dryad.ht76hdrft https://zenodo.org/communities/dryad https://doi.org/10.5281/zenodo.7341585 https://doi.org/10.5281/zenodo.7341586 oai:zenodo.org:7341586 |
op_rights |
info:eu-repo/semantics/openAccess MIT License https://opensource.org/licenses/MIT |
op_doi |
https://doi.org/10.5281/zenodo.734158610.5061/dryad.ht76hdrft10.5281/zenodo.7341585 |
_version_ |
1809908636669968384 |