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Multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch
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Titel: |
Multicriteria analysis of log-set strata closures to reduce the mexican tuna fishery incidental catch |
In: | Ciencias Marinas, 28, 2002, 3, S. 257-271 |
veröffentlicht: |
Instituto de Investigaciones Oceanologicas
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Umfang: | 257-271 |
ISSN: |
2395-9053 0185-3880 |
DOI: | 10.7773/cm.v28i3.226 |
Zusammenfassung: | <jats:p> 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.</jats:p> |
Format: | E-Article |
Quelle: | Instituto de Investigaciones Oceanologicas (CrossRef) |
Sprache: | Unbestimmt |