Is FAD fishing an economic trap? Effects of seasonal closures and other management measures on a purse‐seine tuna fleet
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Published:2023-10-25
Issue:1
Volume:25
Page:151-167
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ISSN:1467-2960
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Container-title:Fish and Fisheries
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language:en
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Short-container-title:Fish and Fisheries
Author:
Guillotreau P.1ORCID,
Salladarré F.2,
Capello M.1,
Dupaix A.1ORCID,
Floc'h L.1,
Tidd A.1,
Tolotti M.1,
Dagorn L.1
Affiliation:
1. MARBEC, Univ Montpellier, CNRS, Ifremer, IRD Sète France
2. Nantes Université, LEMNA Nantes France
Abstract
AbstractThe management of fish aggregating devices (FAD) creates heated debates in tuna fishery management organizations striving to reduce the number of deployed floating objects. Through several econometric models and a machine learning approach, we evaluate the consequences of three management scenarios on the catch and profit of the French purse‐seine fleet operating in the Indian Ocean: (1) a half reduction in the number of authorized buoys per vessel, (2) a 72‐day closure of FAD fishing with and (3) without re‐allocation of effort on free schools. The results show a significant decrease of fleet profits by 7%, 10% and 18% respectively. We hypothesize an “economic trap” of FAD fishing caused by the far greater efficiency of this harvesting technique for larger vessels searching for economies of scale, and by the overfished status and catch limitation of yellowfin (Thunnus albacares) and bigeye (Thunnus obesus) tunas in the Indian Ocean. The results are compared with other studies looking at the impact of FAD management measures in other oceans.
Subject
Management, Monitoring, Policy and Law,Aquatic Science,Ecology, Evolution, Behavior and Systematics,Oceanography
Reference48 articles.
1. Baidai Y. Dagorn L. Capello M. Guillotreau P. &Lemeur P.‐Y.(2022).Les dispositifs de concentration de poissons dans la zone de convention de la COMHAFAT Final Report IRD‐COMHAFAT. 138 p.
2. Fuel consumption of free-swimming school versus FAD strategies in tropical tuna purse seine fishing
3. Berkenhagen J. Döring R. Kraak S. B. &Stransky C.(2021).Scientific Technical and Economic Committee for Fisheries (STECF): The 2021 Annual Economic Report on the EU Fishing Fleet (STECF 21‐08). Retrieved fromhttps://policycommons.net/artifacts/2089767/scientific‐technical‐and‐economic‐committee‐for‐fisheries‐stecf/2845065/on 06 Oct 2023. CID: 20.500.12592/vtv19s.