Mitigation of incidental mortality of Australian sea lions in the west coast rock lobster fishery

Abstract

ESR Endangered Species Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials ESR 5:335-344 (2008) - DOI: https://doi.org/10.3354/esr00140 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 *Email: rprellezo@suk.azti.es 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 Full text in pdf format PreviousNextCite this article as: Prellezo R, Gallastegui MC (2008) Gear-selectivity-based regulation in a mixed fishery. Endang Species Res 5:335-344. https://doi.org/10.3354/esr00140 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in ESR Vol. 5, No. 2-3. Online publication date: December 23, 2008 Print ISSN: 1863-5407; Online ISSN: 1613-4796 Copyright © 2008 Inter-Research.