Sarré A. auteur aut IRD Demarcq Hervé auteur aut IRD Keenlyside N. auteur aut IRD Krakstad J.O. auteur aut IRD Faye S. auteur aut IRD Thiao D. auteur aut IRD El Ayoubi S. auteur aut IRD Ahmed O.T.M. auteur aut IRD Mbaye E.M. auteur aut IRD Mbaye A. auteur aut IRD Brehmer Patrice auteur aut IRD text conferencePaper eng text/pdf reformatted digital access Along the coast of North-West Africa, fish supply is important at both socio-economic and cultural levels. Reports by fishermen emphasise changes in the distribution of fish species important for food security. Northward shifts in the distribution of sardinella and other species have been attributed to a warming trend and the redistribution of upwelling intensity and productivity. As a result, the abundance of sardinella along the coast has increased in the subtropics and fallen in the intertropical region. Independent observational time series confirm a robust northward shift in Sardinella aurita since 1995, which we attribute to the intense warming of this region, where the greatest increase in sea surface temperature of all tropical regions is found. The spatial shifts in biomass of several hundred kilometres observed during the last 20 years are of the same order of magnitude as those recorded for surface isotherms in the sub-regional pelagic habitat of sardinella. Such changes are an important policy consideration for food security management in several West African countries. specialized AFRIQUE DU NORD AFRIQUE DE L'OUEST ATLANTIQUE 030 034 021 054 ICAWA : International Conference AWA, 5., Lanzarote (ESP), 2018/04/17-20 127 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:010078267 978-9553602-0-06 [F A010078243] https://www.documentation.ird.fr/hor/fdi:010078267 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers20-05/010078267.pdf IRD - Base Horizon / Pleins textes 2020-04-28 2025-12-10 fdi:010078267 fre