@inproceedings{fdi:010072110, title = {{I}nfluence of climatic variables on {S}ardinella recruitment dynamique in {S}enegalese waters [r{\'e}sum{\'e}]}, author = {{D}iankha, {O}. and {B}a, {A}. and {B}rehmer, {P}atrice and {B}rochier, {T}imoth{\'e}e and {T}hiaw, {M}. and {S}ow, {B}.{A}. and {G}aye, {A}.{T}. and {D}emarcq, {H}erv{\'e}}, editor = {}, language = {{ENG}}, abstract = {{S}everal authors, with estimated abundance index, attempted to study the dynamic of {S}ardinella populations in relation with to their environment fluctuations in {W}est {A}frican region. {H}owever, this relationship still poorly understood because of the complexity and difficulty to estimate this abundance index that depends on a variable difficult to identify, the fishing effort from artisanal fisheries. {T}his study is a contribution to better understand the link between the variability of environmental conditions and the dynamic of {S}ardinella aurita and {S}ardinella maderensis in {S}enegalese waters using generalized additive model. {R}ecruitment data of these two species estimated from the virtual population analysis model, sea surface temperature, coastal upwelling index, wind speed, surface chlorophyll concentration and north {A}tlantic oscillation index within 2004-2013 period were used. {O}ur results showed that recruitment of these two small pelagic species are closely linked to changes in the climatic variables tested. {H}owever, variables playing the most critical roles differ from one species to another. {F}or the {S}. aurita, the index of coastal upwelling is the most important factor, while for {S}. maderensis is the {SST} which plays the leading role. {T}his study also reveals the existence of temperature, intensity of upwelling, wind speed, concentration of chlorophyll-a and north {A}tlantic oscillation index thresholds above or below which {S}ardinella recruitment success is low.}, keywords = {{SENEGAL} ; {ATLANTIQUE}}, numero = {}, pages = {39}, booktitle = {{I}nternational conference {ICAWA} 2016 : extended book of abstract : the {AWA} project : ecosystem approach to the management of fisheries and the marine environment in {W}est {A}frican waters}, year = {2017}, ISBN = {978-2-9553602-0-5}, URL = {https://www.documentation.ird.fr/hor/fdi:010072110}, }