Ba Aliou auteur aut IRD Chaboud Christian auteur aut IRD Schimdt J. auteur aut IRD Diouf M. auteur aut IRD Fall M. auteur aut IRD Dème M. auteur aut IRD Brehmer Patrice auteur aut IRD text conferencePaper eng text/pdf reformatted digital access In the early 2000s, Senegal set up several Marine Protected Areas (MPAs) along its coastal zone for the purpose of biodiversity conservation and the sustainably of fisheries. However, the impact of MPAs may vary depending on the types of fishing. In Senegal, the sardinella fishing accounts for 70% of total catches. This fishery is of crucial for food security and employment. Given this importance, it is necessary to evaluate the impact of the MPAs often considered as a tool for fisheries management. An analytical, dynamic and spatial bio-economic model of sardinella fishery has been developed and simulations over 40 years were carried out. The model takes into account the migration of the resource and that of fishermen. The main results show that the fishery is economically overexploited and that the society loses about 15 billion CFA over 40 years of exploitation, i.e. 375 million CFA per year. To reach an optimal level of exploitation, it would be necessary to halve the current fishing capacity. The closure rates of 10, 20 and 30% lead to increases in biomass (8 to 28%) and rent (5 to 11%). Spatio-temporal closure measures lead inevitably to overcapacity in unclosed areas. The objective 11 of the Aichi Convention will have a reserve effect on the resource but also weak improvements in economic indicators for this fishery. Lastly we show that if we expect that the MPAs provide a significant impact on sardinella fishery in Senegal, they should be accompanied by a limitation of fishing capacity. specialized AFRIQUE DE L'OUEST SENEGAL ATLANTIQUE 040 ICAWA : International Conference AWA, 5., Lanzarote (ESP), 2018/04/17-20 129 Brehmer Patrice ed. edt IRD Diogoul N. collab. clb IRD Zenk C. collab. clb IRD Vareilles M. de collab. clb IRD Keenlyside N. collab. clb IRD Nascimento J.M. collab. clb IRD Ramos V. M. collab. clb IRD Sow B.A. collab. clb IRD Fock H. collab. clb IRD Schmidt J. collab. clb IRD Ekau W. collab. clb IRD Mbaye A. collab. clb IRD Fall. A. collab. clb IRD Monteiro I. collab. clb IRD Kouassi A.M. collab. clb IRD Silva O. collab. clb IRD Brochier Timothée collab. clb IRD Sall. M. collab. clb IRD Mayif M. collab. clb IRD Koné V. collab. clb IRD Gorgues Thomas collab. clb IRD Ferreira Santos C. collab. clb IRD Bamy I.L. collab. clb IRD Barry I. collab. clb IRD Sidibe M. collab. clb IRD Diadhou H. collab. clb IRD Dakar (SEN) SRFC/CSRP Marseille IRD 2019 https://www.documentation.ird.fr/hor/fdi:010078269 978-9553602-0-06 [F A010078243] https://www.documentation.ird.fr/hor/fdi:010078269 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers20-05/010078269.pdf IRD - Base Horizon / Pleins textes 2020-04-30 2025-12-10 fdi:010078269 fre