Multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch

Multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch

 Concordance analysis, a multicriteria technique, was used as a decision-making tool. To exemplify the use of this tool, five closure options were evaluated to decrease incidental catch of mahi-mahi or dolphin-fish, Coryphaena spp., by the Mexican eastern Pacific tuna fishery using log-sets...

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Autors principals: Vaca-Rodríguez, JG, Enríquez-Andrade, RR
Format: Online
Idioma:eng
Publicat: Iniversidad Autónoma de Baja California 2002
Accés en línia:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/226
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spelling oai:cienciasmarinas.com.mx:article-2262019-04-30T19:56:32Z Multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch Análisis multicriterio de estratos de veda para reducir la captura incidental en lances sobre objetos flotantes de la flota atunera mexicana Vaca-Rodríguez, JG Enríquez-Andrade, RR multicriteria closures incidental catch tuna multicriterio vedas captura incidental atún  Concordance analysis, a multicriteria technique, was used as a decision-making tool. To exemplify the use of this tool, five closure options were evaluated to decrease incidental catch of mahi-mahi or dolphin-fish, Coryphaena spp., by the Mexican eastern Pacific tuna fishery using log-sets. The options consist of combinations of spatial and temporal strata subject to closures, and were evaluated using four eco-biologic and techno-economic criteria. A set of solutions was generated using 286 parametric representations of the weights-vector due to the difficulty of knowing the real preferences of decision-makers. The option with the highest probability of being chosen (almost 0.6) closes three large areas throughout the year for log-sets. This option would reduce mahi-mahi incidental catch in just over 85%, and almost 92% that of other species. However, this option represents the highest cost in terms of lost gross revenues and leaves only eight strata open for the log-set fishery. Se utilizó la técnica multicriterio de análisis de concordancia como una herramienta para la toma de decisiones. Para ejemplificar el uso de esta herramienta se evaluaron cinco opciones de veda para disminuir la captura incidental del dorado, Coryphaena spp., en lances sobre objetos flotantes de la pesquería mexicana de atún en el Pacífico oriental. Las opciones constituyen combinaciones de estratos espacio-temporales sujetos a veda, y fueron evaluadas con base en cuatro criterios ecológico-biológicos y técnico-económicos. Se generó un conjunto de soluciones mediante 286 posibles representaciones paramétricas del vector de ponderación debido a la dificultad de contar con las preferencias reales de los encargados de la toma de decisiones. La opción con la mayor probabilidad de ser elegida (casi 0.6) fue aquella que veda tres grandes áreas alejadas de la costa a lo largo del año para los lances sobre objetos flotantes. Esta opción reduciría en poco más del 85% la captura incidental de dorado, y en cerca de 92% la de otras especies. Sin embargo, ésta es la opción que presenta el mayor costo en términos del ingreso bruto perdido y deja solamente ocho estratos abiertos a la pesca con ese tipo de lance. Iniversidad Autónoma de Baja California 2002-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/226 10.7773/cm.v28i3.226 Ciencias Marinas; Vol. 28 No. 3 (2002); 257-271 Ciencias Marinas; Vol. 28 Núm. 3 (2002); 257-271 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/226/193
institution Ciencias Marinas
collection OJS
language eng
format Online
author Vaca-Rodríguez, JG
Enríquez-Andrade, RR
spellingShingle Vaca-Rodríguez, JG
Enríquez-Andrade, RR
Multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch
author_facet Vaca-Rodríguez, JG
Enríquez-Andrade, RR
author_sort Vaca-Rodríguez, JG
title Multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch
title_short Multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch
title_full Multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch
title_fullStr Multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch
title_full_unstemmed Multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch
title_sort multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch
description  Concordance analysis, a multicriteria technique, was used as a decision-making tool. To exemplify the use of this tool, five closure options were evaluated to decrease incidental catch of mahi-mahi or dolphin-fish, Coryphaena spp., by the Mexican eastern Pacific tuna fishery using log-sets. The options consist of combinations of spatial and temporal strata subject to closures, and were evaluated using four eco-biologic and techno-economic criteria. A set of solutions was generated using 286 parametric representations of the weights-vector due to the difficulty of knowing the real preferences of decision-makers. The option with the highest probability of being chosen (almost 0.6) closes three large areas throughout the year for log-sets. This option would reduce mahi-mahi incidental catch in just over 85%, and almost 92% that of other species. However, this option represents the highest cost in terms of lost gross revenues and leaves only eight strata open for the log-set fishery.
publisher Iniversidad Autónoma de Baja California
publishDate 2002
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/226
_version_ 1715723944690974720

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