A 25-year marine reserve as proxy for the unfished condition of an exploited species

Autores
Díaz, David; Mallol, Sandra; Parma, Ana María; Goñi, Raquel
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the absence of a historical baseline, long-term no-take marine reserves can provide a reference to the unfished condition in exploited species of limited mobility. This study documents the recovery of the lobster Palinurus elephas within a large Mediterranean no-take marine reserve (MR) and uses it as a baseline to assess stock status in exploited grounds in the region. Lobster indices of density and biomass within the MR continued to increase after 25 years of protection, a period close to the species' lifespan. Catch per unit effort (CPUE) in weight more than doubled from years 10th to 25th without fishing in the reserve while the increase of CPUE in numbers was only 20%. This faster increase in biomass reflected individual growth and spillover of predominantly smaller lobsters to adjacent grounds. A highly depleted status of exploited populations was inferred from the demographic structure and CPUEs, with fishery:MR ratios and reproductive potential indices below 0.05. In the MR the size-class of maximum egg production increased over time, in contrast to stable sizes classes in fished areas. The contribution of small lobster (b90 mm CL) to overall egg production was only 1.5% in the MR and 30% in the fished areas. Mortality estimated from recent size compositions was three to four times higher in fished areas than inside the MR, resulting in a reduction in predicted spawning potential per recruit close to 20% of the unfished level. This experiment emphasizes the value of long-term no-take areas as reference laboratories for investigating fishing effects.
Fil: Díaz, David. Centro Oceanográfico de Baleares. Instituto Español de Oceanografía. Palma de Mallorca; España
Fil: Mallol, Sandra. Centro Oceanográfico de Baleares. Instituto Español de Oceanografía. Palma de Mallorca; España
Fil: Parma, Ana María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Goñi, Raquel. Centro Oceanográfico de Baleares. Instituto Español de Oceanografía. Palma de Mallorca; España
Materia
No-Take Marine Reserves
Long-Term Protection
Unfished-Condition
Fisheries Depletion
Artisanal Fisheries
Spiny Lobster
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/24949
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A 25-year marine reserve as proxy for the unfished condition of an exploited speciesDíaz, DavidMallol, SandraParma, Ana MaríaGoñi, RaquelNo-Take Marine ReservesLong-Term ProtectionUnfished-ConditionFisheries DepletionArtisanal FisheriesSpiny Lobsterhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In the absence of a historical baseline, long-term no-take marine reserves can provide a reference to the unfished condition in exploited species of limited mobility. This study documents the recovery of the lobster Palinurus elephas within a large Mediterranean no-take marine reserve (MR) and uses it as a baseline to assess stock status in exploited grounds in the region. Lobster indices of density and biomass within the MR continued to increase after 25 years of protection, a period close to the species' lifespan. Catch per unit effort (CPUE) in weight more than doubled from years 10th to 25th without fishing in the reserve while the increase of CPUE in numbers was only 20%. This faster increase in biomass reflected individual growth and spillover of predominantly smaller lobsters to adjacent grounds. A highly depleted status of exploited populations was inferred from the demographic structure and CPUEs, with fishery:MR ratios and reproductive potential indices below 0.05. In the MR the size-class of maximum egg production increased over time, in contrast to stable sizes classes in fished areas. The contribution of small lobster (b90 mm CL) to overall egg production was only 1.5% in the MR and 30% in the fished areas. Mortality estimated from recent size compositions was three to four times higher in fished areas than inside the MR, resulting in a reduction in predicted spawning potential per recruit close to 20% of the unfished level. This experiment emphasizes the value of long-term no-take areas as reference laboratories for investigating fishing effects.Fil: Díaz, David. Centro Oceanográfico de Baleares. Instituto Español de Oceanografía. Palma de Mallorca; EspañaFil: Mallol, Sandra. Centro Oceanográfico de Baleares. Instituto Español de Oceanografía. Palma de Mallorca; EspañaFil: Parma, Ana María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; ArgentinaFil: Goñi, Raquel. Centro Oceanográfico de Baleares. Instituto Español de Oceanografía. Palma de Mallorca; EspañaElsevier2016-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/24949Díaz, David; Mallol, Sandra; Parma, Ana María; Goñi, Raquel; A 25-year marine reserve as proxy for the unfished condition of an exploited species; Elsevier; Biological Conservation; 203; 8-2016; 97-1070006-3207CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.biocon.2016.09.002info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0006320716303615info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:06:42Zoai:ri.conicet.gov.ar:11336/24949instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:06:42.286CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A 25-year marine reserve as proxy for the unfished condition of an exploited species
title A 25-year marine reserve as proxy for the unfished condition of an exploited species
spellingShingle A 25-year marine reserve as proxy for the unfished condition of an exploited species
Díaz, David
No-Take Marine Reserves
Long-Term Protection
Unfished-Condition
Fisheries Depletion
Artisanal Fisheries
Spiny Lobster
title_short A 25-year marine reserve as proxy for the unfished condition of an exploited species
title_full A 25-year marine reserve as proxy for the unfished condition of an exploited species
title_fullStr A 25-year marine reserve as proxy for the unfished condition of an exploited species
title_full_unstemmed A 25-year marine reserve as proxy for the unfished condition of an exploited species
title_sort A 25-year marine reserve as proxy for the unfished condition of an exploited species
dc.creator.none.fl_str_mv Díaz, David
Mallol, Sandra
Parma, Ana María
Goñi, Raquel
author Díaz, David
author_facet Díaz, David
Mallol, Sandra
Parma, Ana María
Goñi, Raquel
author_role author
author2 Mallol, Sandra
Parma, Ana María
Goñi, Raquel
author2_role author
author
author
dc.subject.none.fl_str_mv No-Take Marine Reserves
Long-Term Protection
Unfished-Condition
Fisheries Depletion
Artisanal Fisheries
Spiny Lobster
topic No-Take Marine Reserves
Long-Term Protection
Unfished-Condition
Fisheries Depletion
Artisanal Fisheries
Spiny Lobster
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In the absence of a historical baseline, long-term no-take marine reserves can provide a reference to the unfished condition in exploited species of limited mobility. This study documents the recovery of the lobster Palinurus elephas within a large Mediterranean no-take marine reserve (MR) and uses it as a baseline to assess stock status in exploited grounds in the region. Lobster indices of density and biomass within the MR continued to increase after 25 years of protection, a period close to the species' lifespan. Catch per unit effort (CPUE) in weight more than doubled from years 10th to 25th without fishing in the reserve while the increase of CPUE in numbers was only 20%. This faster increase in biomass reflected individual growth and spillover of predominantly smaller lobsters to adjacent grounds. A highly depleted status of exploited populations was inferred from the demographic structure and CPUEs, with fishery:MR ratios and reproductive potential indices below 0.05. In the MR the size-class of maximum egg production increased over time, in contrast to stable sizes classes in fished areas. The contribution of small lobster (b90 mm CL) to overall egg production was only 1.5% in the MR and 30% in the fished areas. Mortality estimated from recent size compositions was three to four times higher in fished areas than inside the MR, resulting in a reduction in predicted spawning potential per recruit close to 20% of the unfished level. This experiment emphasizes the value of long-term no-take areas as reference laboratories for investigating fishing effects.
Fil: Díaz, David. Centro Oceanográfico de Baleares. Instituto Español de Oceanografía. Palma de Mallorca; España
Fil: Mallol, Sandra. Centro Oceanográfico de Baleares. Instituto Español de Oceanografía. Palma de Mallorca; España
Fil: Parma, Ana María. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Goñi, Raquel. Centro Oceanográfico de Baleares. Instituto Español de Oceanografía. Palma de Mallorca; España
description In the absence of a historical baseline, long-term no-take marine reserves can provide a reference to the unfished condition in exploited species of limited mobility. This study documents the recovery of the lobster Palinurus elephas within a large Mediterranean no-take marine reserve (MR) and uses it as a baseline to assess stock status in exploited grounds in the region. Lobster indices of density and biomass within the MR continued to increase after 25 years of protection, a period close to the species' lifespan. Catch per unit effort (CPUE) in weight more than doubled from years 10th to 25th without fishing in the reserve while the increase of CPUE in numbers was only 20%. This faster increase in biomass reflected individual growth and spillover of predominantly smaller lobsters to adjacent grounds. A highly depleted status of exploited populations was inferred from the demographic structure and CPUEs, with fishery:MR ratios and reproductive potential indices below 0.05. In the MR the size-class of maximum egg production increased over time, in contrast to stable sizes classes in fished areas. The contribution of small lobster (b90 mm CL) to overall egg production was only 1.5% in the MR and 30% in the fished areas. Mortality estimated from recent size compositions was three to four times higher in fished areas than inside the MR, resulting in a reduction in predicted spawning potential per recruit close to 20% of the unfished level. This experiment emphasizes the value of long-term no-take areas as reference laboratories for investigating fishing effects.
publishDate 2016
dc.date.none.fl_str_mv 2016-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/24949
Díaz, David; Mallol, Sandra; Parma, Ana María; Goñi, Raquel; A 25-year marine reserve as proxy for the unfished condition of an exploited species; Elsevier; Biological Conservation; 203; 8-2016; 97-107
0006-3207
CONICET Digital
CONICET
url http://hdl.handle.net/11336/24949
identifier_str_mv Díaz, David; Mallol, Sandra; Parma, Ana María; Goñi, Raquel; A 25-year marine reserve as proxy for the unfished condition of an exploited species; Elsevier; Biological Conservation; 203; 8-2016; 97-107
0006-3207
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biocon.2016.09.002
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0006320716303615
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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