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A Preliminary Analysis of Long-Term Changes in the Value of Landings by French Fishing Fleets Operating in the North-East Atlantic

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  • Recent work in the domain of fisheries ecology has shown that major changes are occurring in fish communities exploited by commercial fisheries. Selective fishing pressure on more highly valued components of fish communities, and its indirect effects via trophic interactions, are amongst the key factors proposed to explain these changes. Under de facto open access conditions, it is suggested that sequential overharvesting of higher valued fish and/or fish species leads to modifications in the structure of both fish communities, and fisheries landings. An important question is the implication of such changes in terms of the total value of landings from a given fish community. The aim of this paper is to present a preliminary analysis of this question in the context of French commercial fisheries. The analysis focuses on trends observed in the landings of fishing fleets operating in the North East Atlantic, over the last three decades. It is based on data concerning annual quantities landed and prices of 85 species, compiled by the authors from French official landings records. Changes in total quantity and total value landed are presented, as well as changes in the structure of landings in terms of the ecological characteristics of species landed. Using the economic theory of index numbers allows to separate volume and price variations, and to analyze their respective contributions to variations in gross turnover. Key drivers of these variations are then discussed.
  • Keywords: Price Fluctuations, Catch Composition, Long Term Trends in Landings, Ecological Impacts of Fishing and Climate Change
  • Keywords: Price Fluctuations, Catch Composition, Long Term Trends in Landings, Ecological Impacts of Fishing and Climate Change
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  • Steinmetz, Fabien, Olivier Thebaud, Olivier Guyader and Fabian Blanchard. 2006. A Preliminary Analysis of Long-Term Changes in the Value of Landings by French Fishing Fleets Operating in the North-East Atlantic. 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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