Efficiency and Capacity of Fully Exploited Fisheries Managed Using Vessel Catch Limits Combined with Effort Restrictions Public Deposited

http://ir.library.oregonstate.edu/concern/conference_proceedings_or_journals/9w032417v

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  • A wide range of fisheries are managed using vessel catch limits combined with different kinds of effort restrictions. This management framework is expected to have desirable consequences for the bioeconomic sustainability of fisheries. When appropriately implemented this approach produces outcomes that are similar to those associated with individual fishing quotas. However, there is little empirical evidence of this fact. Provided vessel catch limits are defined according sustainable criteria this management framework applied in a fully exploited or overexploited fishery results in most of the vessels actually landing the maximum amount of fish allowed. This observation makes it necessary for the analysis to adopt an input orientation because vessels can only be more technically efficient if they use the optimal quantity of productive inputs for the given maximum output. However, few studies illustrate this point despite the fact that the measurement of technical efficiency has been theoretically well described in efficiency and productivity analysis literature. An input-oriented DEA model is solved in this paper to determine technical efficiency of Striped venus (Chamelea gallina, Linnaeus, 1758) fishery of the Gulf of Cádiz (South Atlantic Spanish Region / Spanish IX-a ICES subdivision). Technical efficiency is interpreted as an observed measure of input capacity utilization and enables a comparison of differences in technical efficiency across the different technologies that co-exist in this fishery.
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  • Castilla Espino, David, Félix García Ordaz and Basil M. H. Sharp. 2006. Efficiency and Capacity of Fully Exploited Fisheries Managed Using Vessel Catch Limits Combined with Effort Restrictions. In: Proceedings of the Thirteenth Biennial Conference of the International Institute of Fisheries Economics & Trade, July 11-14, 2006, Portsmouth, UK: Rebuilding Fisheries in an Uncertain Environment. Compiled by Ann L. Shriver. International Institute of Fisheries Economics & Trade, Corvallis, Oregon, USA, 2006. CD ROM. ISBN 0-9763432-3-1
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