Novel index for quantification of ecosystem effects of fishing as removal of secondary production

23 pages, 5 figures, 3 tables, 2 appendix

Detalles Bibliográficos
Autores: Libralato, Simone, Coll, Marta, Tudela, Sergi, Palomera, Isabel, Pranovi, Fabio
Tipo de recurso: artículo
Fecha de publicación:2008
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/9315
Acceso en línea:http://hdl.handle.net/10261/9315
Access Level:acceso abierto
Palabra clave:Fishing impacts
Ecosystem functioning
Loss in production
Primary production required
Trophic level
Overfishing
Ecosystem-based fisheries management
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spelling Novel index for quantification of ecosystem effects of fishing as removal of secondary productionLibralato, SimoneColl, MartaTudela, SergiPalomera, IsabelPranovi, FabioFishing impactsEcosystem functioningLoss in productionPrimary production requiredTrophic levelOverfishingEcosystem-based fisheries management23 pages, 5 figures, 3 tables, 2 appendixExploited ecosystems are characterised by exports of secondary production from each fished trophic level that reduce the energy available for upper levels at the ecosystem scale, thus impinging on overall secondary production. Depletion in secondary production is proposed here as a proxy for quantifying the ecosystem effects of fishing. Theoretical analysis of trophic web interactions permits the quantification of the ‘loss in production’ and provides an ecological basis for defining a new synthetic index (L index) that takes into account both ecosystem properties (primary production and transfer efficiency) and features of fishing activities (trophic level of catches and primary production required). Quantitative meta-analysis of ecological models, representing 51 exploited ecosystems previously classified as overexploited or sustainably exploited, allows the association of a probability of the ecosystem being sustainably fished with each index value. Moreover, by fixing the reference level for this probability, the index provides a basis for estimating the maximum allowable catches. The L index is applied here to several ecosystems worldwide using landings data and ecological models, providing quantification of the disruption of energy flows for ecosystems subjected to different types and levels of fishing pressure. Its application to outputs of calibrated dynamic models enables the evaluation of sustainability of fisheries in past and future scenarios of alternative fisheries management policies. Results highlight the usefulness of this index for quantifying the impacts of fishing and providing directional advice for fisheries management. Thus, the L index may be used to support ecosystem-based management of fisheriesPeer reviewedInter Research200820082008info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_650123552 bytesapplication/mswordhttp://hdl.handle.net/10261/9315reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3354/meps07224info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/93152026-05-22T06:33:51Z
dc.title.none.fl_str_mv Novel index for quantification of ecosystem effects of fishing as removal of secondary production
title Novel index for quantification of ecosystem effects of fishing as removal of secondary production
spellingShingle Novel index for quantification of ecosystem effects of fishing as removal of secondary production
Libralato, Simone
Fishing impacts
Ecosystem functioning
Loss in production
Primary production required
Trophic level
Overfishing
Ecosystem-based fisheries management
title_short Novel index for quantification of ecosystem effects of fishing as removal of secondary production
title_full Novel index for quantification of ecosystem effects of fishing as removal of secondary production
title_fullStr Novel index for quantification of ecosystem effects of fishing as removal of secondary production
title_full_unstemmed Novel index for quantification of ecosystem effects of fishing as removal of secondary production
title_sort Novel index for quantification of ecosystem effects of fishing as removal of secondary production
dc.creator.none.fl_str_mv Libralato, Simone
Coll, Marta
Tudela, Sergi
Palomera, Isabel
Pranovi, Fabio
author Libralato, Simone
author_facet Libralato, Simone
Coll, Marta
Tudela, Sergi
Palomera, Isabel
Pranovi, Fabio
author_role author
author2 Coll, Marta
Tudela, Sergi
Palomera, Isabel
Pranovi, Fabio
author2_role author
author
author
author
dc.subject.none.fl_str_mv Fishing impacts
Ecosystem functioning
Loss in production
Primary production required
Trophic level
Overfishing
Ecosystem-based fisheries management
topic Fishing impacts
Ecosystem functioning
Loss in production
Primary production required
Trophic level
Overfishing
Ecosystem-based fisheries management
description 23 pages, 5 figures, 3 tables, 2 appendix
publishDate 2008
dc.date.none.fl_str_mv 2008
2008
2008
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/9315
url http://hdl.handle.net/10261/9315
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.3354/meps07224
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 23552 bytes
application/msword
dc.publisher.none.fl_str_mv Inter Research
publisher.none.fl_str_mv Inter Research
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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