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Endangered Species Research

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ESR 5:335-344 (2008)  -  DOI:

Gear-selectivity-based regulation in a mixed fishery

Raúl Prellezo1,*, M. C. Gallastegui2

1AZTI-Tecnalia, Marine Research Division, Txatxarramendi Ugartea z/g, 48395 Sukarrieta, Spain
2Dpto. de Fundamentos del Análisis Económico I, Universidad del País Vasco-EHU, Lehendakari Agirre 83,
48015 Bilbao, Spain

ABSTRACT: In this paper we analyze the optimal management of a mixed fishery where the harvest is composed of a target and a bycatch species. In contrast to other studies, we have included the selectivity of the fishing gear as a control variable. The fishery is regulated by means of total allowable effort and with 2 different systems of total allowable catch (TAC): an aggregated and a disaggregated TAC. The main result obtained is that in an aggregated TAC program, the selectivity level and the decision to discard depend only upon the marginal profits of both species, but that in the case of a disaggregated program, other factors such as gear selectivity have to be taken into account.

KEY WORDS: Mixed fisheries · Fishing gear selectivity · Bycatch · Harvest quotas

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Cite this article as: Prellezo R, Gallastegui MC (2008) Gear-selectivity-based regulation in a mixed fishery. Endang Species Res 5:335-344.

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