FN Archimer Export Format
PT J
TI Bonga shad (   Ethmalosa fimbriata   ) spawning tactics in an upwelling environment
BT 
AF Baldé, Bocar Sabaly
   Döring, Julian
   Ekau, Werner
   Diouf, Malick
   Brehmer, Patrice
AS 1:1,2,3;2:4;3:4;4:3;5:1,2;
FF 1:;2:;3:;4:;5:;
C1 Institut Sénégalais de Recherche Agricole (ISRA), Centre de Recherches Océanographiques de Dakar‐Thiaroye (CRODT) Centre PRH Dakar ,Sénégal
   IRD, Univ Brest, CNRS, Ifremer Lemar Plouzané, France
   Institut Universitaire de Pêche et d'Aquaculture Université Cheikh Anta Diop (UCAD) Dakar ,Sénégal
   Leibniz Centre for Tropical Marine Research (ZMT) Bremen, Germany
C2 ISRA, SENEGAL
   IRD, FRANCE
   UNIV CHEIKH ANTA DIOP, SENEGAL
   LEIBNIZ CTR TROP MARINE ECOL ZMT, GERMANY
UM LEMAR
IN WOS Cotutelle UMR
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 2.198
TC 5
UR https://archimer.ifremer.fr/doc/00516/62765/67164.pdf
LA English
DT Article
DE ;climate change;clupeid;data-poor fisheries;fecundity;optimal environmental window;reproductive adaptation;small pelagic fish
AB Successful recruitment in small pelagic fish populations inhabiting upwelling zones is subject to variation in fecundity and is driven by spatial and temporal fluctuations in environmental conditions, that is, mainly sea surface temperature, salinity and food availability. These fluctuations in abiotic factors have stimulated small pelagic fish populations to exhibit specifically adapted spawning tactics. To better understand to what extent a short‐lived exploited fish species such as bonga shad Ethmalosa fimbriata has adapted to an upwelling environment, we have investigated the interrelationship between upwelling intensity as a proxy for productivity and population fecundity by means of a virtual population analysis. We found that females of intermediate size contributed significantly more eggs to the population's fecundity than smaller or larger ones. Our model results further indicate that E. fimbriata exhibits a spawning preference at water temperatures of around 25°C and upwelling intensities of around 2.5 m3 s−1 m−1. Hence, we hypothesize that climate change‐driven increases in sea temperatures and modifications of upwelling‐favourable winds could significantly impact the species’ reproductive biology. To understand how climate change might impact fisheries, spawning tactics of small pelagic fishes are important to assess as well as their recruitment success. Such information is particularly relevant in countries where the fishery is critical at socio‐economic level, to better implement fisheries management addressing multiple stressors. 
PY 2019
PD NOV
SO Fisheries Oceanography
SN 1054-6006
PU Wiley
VL 28
IS 6
UT 000488278100001
BP 686
EP 697
DI 10.1111/fog.12451
ID 62765
ER

EF