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| Tekijä: | Enriquez-Andrade, R.R. Vaca-Rodriguez, J.G. |
| Otsikko: | Evaluating ecological tradeoffs in fisheries management: a study case for the yellowfin tuna fishery in the Eastern Pacific Ocean |
| Lehti: | Ecological Economics
2004 : MAR, VOL. 48:3, p. 303-315 |
| Asiasana: | Fishing industry Decision making Ecology Case studies Models |
| Kieli: | eng |
| Tiivistelmä: | Multiobjective decision analysis (MDA) is a useful assessment method when fishery managers need a systematic investigation of the tradeoffs involved in the selection of alternative policy options. In this paper, a vector optimization model of the Eastern Pacific yellowfin tuna fishery is used to generate Pareto-optimal solutions and to evaluate the tradeoffs (shadow prices) involved in the selection of alternative policy options. Three conflicting biological objectives are considered: (a) minimizing dolphin incidental mortality, (b) minimizing by-catch of all non-dolphin species and (c) maximizing total yellowfin tuna catch. Results are presented and discussed by means of non-linear trade-off curves. |
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