Sarré A., Demarcq Hervé, Keenlyside N., Krakstad J.O., Faye S., Thiao D., El Ayoubi S., Ahmed O.T.M., Mbaye E.M., Mbaye A., Brehmer Patrice. (2019). Intense warming causes a spatial shift of small pelagic fish : early warning for food security in North-West Africa [résumé]. In :
Brehmer Patrice (ed.), Diogoul N. (collab.), Zenk C. (collab.), Vareilles M. de (collab.), Keenlyside N. (collab.), Nascimento J.M. (collab.), Ramos V. M. (collab.), Sow B.A. (collab.), Fock H. (collab.), Schmidt J. (collab.), Ekau W. (collab.), Mbaye A. (collab.), Fall. A. (collab.), Monteiro I. (collab.), Kouassi A.M. (collab.), Silva O. (collab.), Brochier Timothée (collab.), Sall. M. (collab.), Mayif M. (collab.), Koné V. (collab.), Gorgues Thomas (collab.), Ferreira Santos C. (collab.), Bamy I.L. (collab.), Barry I. (collab.), Sidibe M. (collab.), Diadhou H. (collab.). International conference ICAWA 2017 and 2018 : extended book of abstract : the AWA project : ecosystem approach to the management of fisheries and the marine environment in West African waters. [s.l.] : SRFC/CSRP ; IRD, p. 127. ICAWA : International Conference AWA, 5., Lanzarote (ESP), 2018/04/17-20. ISBN 978-9553602-0-06.
Titre du document
Intense warming causes a spatial shift of small pelagic fish : early warning for food security in North-West Africa [résumé]
Année de publication
2019
Type de document
Colloque
Auteurs
Sarré A., Demarcq Hervé, Keenlyside N., Krakstad J.O., Faye S., Thiao D., El Ayoubi S., Ahmed O.T.M., Mbaye E.M., Mbaye A., Brehmer Patrice
In
Brehmer Patrice (ed.), Diogoul N. (collab.), Zenk C. (collab.), Vareilles M. de (collab.), Keenlyside N. (collab.), Nascimento J.M. (collab.), Ramos V. M. (collab.), Sow B.A. (collab.), Fock H. (collab.), Schmidt J. (collab.), Ekau W. (collab.), Mbaye A. (collab.), Fall. A. (collab.), Monteiro I. (collab.), Kouassi A.M. (collab.), Silva O. (collab.), Brochier Timothée (collab.), Sall. M. (collab.), Mayif M. (collab.), Koné V. (collab.), Gorgues Thomas (collab.), Ferreira Santos C. (collab.), Bamy I.L. (collab.), Barry I. (collab.), Sidibe M. (collab.), Diadhou H. (collab.) International conference ICAWA 2017 and 2018 : extended book of abstract : the AWA project : ecosystem approach to the management of fisheries and the marine environment in West African waters
Source
[s.l.] : SRFC/CSRP ; IRD, 2019,
p. 127 ISBN 978-9553602-0-06
Colloque
ICAWA : International Conference AWA, 5., Lanzarote (ESP), 2018/04/17-20
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.
Plan de classement
Sciences du milieu [021]
;
Limnologie / Océanographie : généralités [030]
;
Limnologie biologique / Océanographie biologique [034]
;
Nutrition, alimentation [054]
Localisation
Fonds IRD [F A010078243]
Identifiant IRD
fdi:010078267
