Torres-Irineo E. auteur aut IRD Dreyfus-Leon M. auteur aut IRD Gaertner Daniel auteur aut IRD Salas S. auteur aut IRD Marchal P. auteur aut IRD text journalArticle eng text/pdf born digital access The failure to achieve fisheries management objectives has been broadly discussed in international meetings. Measuring the effects of fishery regulations is difficult due to the lack of detailed information. The yellowfin tuna fishery in the eastern Pacific Ocean offers an opportunity to evaluate the fishers' responses to temporal regulations. We used data from observers on-board Mexican purse-seine fleet, which is the main fleet fishing on dolphin-associated tuna schools. In 2002, the Inter-American Tropical Tuna Commission implemented a closed season to reduce fishing effort for this fishery. For the period 1992-2008, we analysed three fishery indicators using generalized estimating equations to evaluate the fishers' response to the closure. We found that purse-seiners decreased their time spent in port, increased their fishing sets, and maintained their proportion of successful fishing sets. Our results highlight the relevance of accounting for the fisher behaviour to understand fisheries dynamics when establishing management regulations. specialized Closed season Eastern tropical Pacific Fisher behaviour Purse-seine fishing Tropical tuna 040 46 1 88-97 2017 0044-7447 https://www.documentation.ird.fr/hor/fdi:010071489 10.1007/s13280-016-0801-x 0044-7447 [F B010071489] https://www.documentation.ird.fr/hor/fdi:010071489 https://www.documentation.ird.fr/intranet/publi/2025-04/010071489.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2017-03-02 2025-04-14 fdi:010071489 fre