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Biological Invasion Control in a Coastal Fishery: A Bioeconomic Analysis of the Bay of Saint-Brieuc Scallop Fishery (France)

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  • This paper deals with the economic impact of an aquatic invasive alien species on a coastal shellfish fishery. A slipper-limpet (Crepidula fornicata ) was accidentally imported some decades ago, has established and is spreading in the bay of Saint-Brieuc (France). This exotic species is acting as a space competitor for common scallop (Pecten maximus) harvested by fishers, and then is threatening the long term sustainability of the scallop fishery. Facing this situation, biological invasion is addressed by a control program. The paper presents a bioeconomic model analyzing the invasive process, the social cost of invasion for the scallop fishery and the benefits resulting from a control program. Based on provisional data, a numerical simulation of the invasion of the common scallop fishery of the Bay of Saint-Brieuc (France) is proposed as an illustration, and sensitivity tests are presented.
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  • Fresard, Marjolaine, Spyros Fifas and Olivier Guyader. 2006. Biological Invasion Control in a Coastal Fishery: A Bioeconomic Analysis of the Bay of Saint-Brieuc Scallop Fishery (France). 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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  • The National Oceanic & Atmospheric Administration Marine Fisheries Service, United States Department of Commerce (NOAA Fisheries); United Kingdom Department for Environment, Food and Rural Affairs (DEFRA); The United States Agency for International Development supported Aquaculture Collaborative Research and Support Program (ACRSP).
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