An Analysis of Changing Fishing Units Using Field Surveys: Case Studies from the EU Public Deposited

http://ir.library.oregonstate.edu/concern/conference_proceedings_or_journals/ff365629j

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  • Three case studies were included in a study on fishing vessels, most of which use trawl gear in demersal fisheries. The case studies include the French Bay of Biscay bottom-trawlers, the English beam trawlers fishing in the English Channel, Celtic Sea and North Sea, and the Basque trawlers fishing in ICES areas VI, VII and VIII. The characteristics surveyed were based on operator, crew and boat information. Information included changes made to equipment on deck for handling and processing catch, engine changes and changes made to onboard electronics. Information on gear used and species targeted was also collected in order to describe various tactics and strategies. Investment decisions, in terms of acquiring a new vessel were mainly based on economic factors such as opportunity costs. Changes to deck equipment are regularly made to increase efficiency and there is a tendency in each fishery to reduce the number of crew, as this reduces costs. The replacement of an engine was linked to the engine breaking down or to reduce the risk of breakdown. The vast majority of vessels surveyed have installed state of the art onboard electronic equipment after it has become available. The rate of uptake averages about 9 years for GPS-PC linked devices (in terms of average time of the majority of the uptake). This new electronic equipment is used to locate productive areas. Modifications made to gear primarily appear to be to increase efficiency and in some cases may be in response to changing fishing opportunities. External factors constrain fishing operations and in order to remain competitive fishermen require changes in technology to achieve greater efficiency. Output-based fisheries management strategies do not necessarily take into account these changes in efficiency leading to situations where effective fishing effort is greater than the reported nominal effort.
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  • Hutton, Trevor, Olivier Guyader, Raul Prellezo, Simon Mardle and Olivier Thebaud. 2006. An Analysis of Changing Fishing Units Using Field Surveys: Case Studies from the EU. 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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