Article: Bycatch of billfishes by the European tuna purse-seine fishery in the Atlantic Ocean.

Abstract--Billfishes are a component of offshore ecosystems; thus it is important to quantify the impact of the tuna fishery on these species in the world's ocean. The aim of this study was to assess the bycatch of billfishes generated by the tropical tuna purse-seine fishery in the eastern Atlantic Ocean. Information on bycatch was collected by observers at sea during the European Union Bigeye Program. With a total of 62 observers' trips, conducted on Spanish and French vessels between June 1997 and May 1999, this project is the biggest observer program ever carried out in the European tuna purse-seine fishery. This study showed that billfish bycatch by the purse seiners ...

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