Ba A. auteur aut IRD Schmidt J. auteur aut IRD Lancker K. auteur aut IRD Chaboud Christian auteur aut IRD Cury Philippe auteur aut IRD Thiao D. auteur aut IRD Diouf M. auteur aut IRD Brehmer Patrice auteur aut IRD text conferencePaper eng text/pdf reformatted digital access Small pelagics are the main fish resource in North West Africa. In Senegal, these are mainly sardinellas (Sardinella aurita and S. maderensis) and bonga shad (Ethmalosa fimbriata). The fisheries, mainly encircling gillnets and purse seines, are predominantly performed by artisanal fishers and are of great importance for the Senegalese economy and for food security in the region. However, in recent years, the main conditions for these fisheries have changed and recent observations have shown strong declines in profit. An analysis over the last twenty years (1993-2013) show that the fisheries lost profit between 65 and 100 % while operating costs increased by 25 and 90 %, for encircling gillnet and purse seine, respectively. While the fuel price dominates as determining factor during the survey period, important other drivers during the last five years were a decrease in fish biomass and an increase in fishing effort. specialized AFRIQUE DE L'OUEST ATLANTIQUE SENEGAL 040 ICAWA : International Conference AWA, 3., Dakar (SEN), 2016/12/13-15 94 Brehmer Patrice ed. edt IRD Ba B. ed. edt IRD Kraus G. ed. edt IRD Dakar SRFC/CSRP 2017 https://www.documentation.ird.fr/hor/fdi:010072135 978-2-9553602-0-5 [F A010071832] https://www.documentation.ird.fr/hor/fdi:010072135 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers18-01/010072135.pdf IRD - Base Horizon / Pleins textes 2018-01-30 2024-01-04 fdi:010072135 fre