FN Archimer Export Format
PT J
TI Contrasted optimal environmental windows for both sardinella species in Senegalese waters
BT 
AF DIANKHA, Ousmane
   BA, Aliou
   BREHMER, Patrice
   BROCHIER, Timothee
   SOW, Bamol Ali
   THIAW, Modou
   GAYE, Amadou Thierno
   NGOM, Fambaye
   DEMARCQ, Herve
AS 1:1;2:2,3;3:3,4;4:3,5;5:6;6:4;7:1;8:4;9:7;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;
C1 UCAD, ESP, LPAO SF, Fann Dakar, Senegal.
   UCAD, UCAD 2, IUPA, Dakar, Senegal.
   IRD, UMR Lemar 195, Lab Marine Environm, Dakar, Senegal.
   CRODT, ISRA, Dakar, Senegal.
   Univ Paris 06, Sorbonne Univ, IRD, UMI 209,UMMISCO, Bondy, France.
   UASZ, UFR Sci & Technol, Dept Phys, LOSEC, Ziguinchor, Senegal.
   IRD, UMR 248, MARBEC Marine Biodivers Exploitat & Conservat, Sete, France.
C2 UNIV CHEIKH ANTA DIOP (UCAD), SENEGAL
   UNIV CHEIKH ANTA DIOP (UCAD), SENEGAL
   IRD, SENEGAL
   CRODT, SENEGAL
   UNIV PARIS 06, FRANCE
   UNIV ZIGUINCHOR, SENEGAL
   IRD, FRANCE
UM LEMAR
   MARBEC
IF 2.66
TC 21
UR https://archimer.ifremer.fr/doc/00611/72299/71189.pdf
   https://archimer.ifremer.fr/doc/00611/72299/71190.pdf
LA English
DT Article
DE ;recruitment success;Sardinella aurita;Sardinella maderensis;upwelling;West Africa
AB We investigate Sardinella aurita and Sardinella maderensis recruitment success relative to the variability of oceanographic conditions in Senegalese waters using generalized additive models (GAM). Results show that recruitment of both species is marked by a strong intra-annual (seasonal) variation with minimum and maximum in winter and summer, respectively. Their interannual variations are synchronous until 2006 (recruitment decreasing), while from 2007 there is no synchrony. The model developed shows that sardinella recruitment variability is closely related to the tested environmental variables in the study area. However, the key environmental variables influencing the recruitment success are different for both species: the Coastal Upwelling Index and the sea surface temperature for S.aurita and S.maderensis, respectively. We report that recruitment success of S.aurita and S.maderensis are associated with distinct ranges of sea surface temperature, upwelling intensity, wind-induced turbulence, concentration of chlorophyll-a and north Atlantic oscillation index. Considering food security and socio-economic importance of both stocks, we recommend that consideration is given to the environmental variability in the small pelagic fish national management plans, particularly in the context of climate change.
PY 2018
PD JUN
SO Fisheries Oceanography
SN 1054-6006
PU Wiley
VL 27
IS 4
UT 000434639200006
BP 351
EP 365
DI 10.1111/fog.12257
ID 72299
ER

EF