FN Archimer Export Format
PT J
TI Variation in life-history traits of European anchovy along a latitudinal gradient: a bioenergetics modelling approach
BT 
AF Huret, Martin
   Tsiaras, K
   Daewel, U
   Skogen, MD
   Gatti, Paul
   Petitgas, Pierre
   Somarakis, S
AS 1:1;2:2;3:3;4:4;5:1;6:5;7:6;
FF 1:PDG-RBE-STH-LBH;2:;3:;4:;5:PDG-RBE-STH-LTBH;6:PDG-RBE-EMH;7:;
C1 Ifremer, STH/LBH, 29280 Plouzané, France
   Hellenic Centre for Marine Research, Anavyssos, Greece
   Helmholtz Centre Geesthacht, Institute of Coastal Research, 21502 Geesthacht, Germany
   Institute of Marine Research, 5817 Bergen, Norway
   Ifremer, EMH, 44311 Nantes, France
   Hellenic Centre for Marine Research, Heraklion, Greece
C2 IFREMER, FRANCE
   HELLENIC CTR MARINE RES, GREECE
   HZG, GERMANY
   IMR (BERGEN), NORWAY
   IFREMER, FRANCE
   HELLENIC CTR MARINE RES, GREECE
SI BREST
   LORIENT
   NANTES
SE PDG-RBE-STH-LBH
   PDG-RBE-STH-LTBH
   PDG-RBE-EMH
IN WOS Ifremer UPR
   copubli-europe
IF 2.326
TC 12
UR https://archimer.ifremer.fr/doc/00504/61564/65489.pdf
LA English
DT Article
CR INTERNATIONAL BOTTOM TRAWL SURVEY (IBTS)
DE ;Engraulis encrasicolus;Countergradient variation;Growth;Reproduction;Dynamic Energy Budget theory;Bay of Biscay;Aegean Sea;North Sea
AB Anchovy Engraulis encrasicolus distribution in European waters spans from the Mediterranean Sea to the North Sea, and is expected to expand further north with global warming. Observations from the eastern Mediterranean (North Aegean Sea), the Bay of Biscay and the North Sea reveal latitudinal differences in growth, maximum size, fecundity and timing of reproduction. We set up a mechanistic framework combining a bioenergetics model with regional physical-biogeochemical models providing temperature and zooplankton biomass to investigate the underlying mechanisms of variation in these traits. The bioenergetics model, based on the Dynamic Energy Budget theory and initially calibrated in the Bay of Biscay, was used to simulate growth and reproduction patterns. Environment partly explained the increased growth rate and larger body size towards the north. However, regional calibration of the maximum assimilation rate was necessary to obtain the best model fit. This suggests a genetic adaptation, with a pattern of cogradient variation with increasing resource towards the north, in addition to a countergradient thermal adaptation. Overall, the seasonal energy dynamics supports the pattern of body-size scaling with latitude, i.e. food-limited growth but low maintenance costs in the warm Aegean Sea, and larger size in the North Sea allowing sufficient storage capacity for overwintering. Further, the model suggests a synchronisation of reproductive timing with environmental seasonality as a trade-off between thresholds of temperature and reserves for spawning and overwintering, respectively. Finally, low temperature, short productive and spawning seasons, and insufficient reserves for overwintering appear to be current limitations for an expansion of anchovy to the Norwegian Sea. 
PY 2019
PD MAY
SO Marine Ecology Progress Series
SN 0171-8630
PU Inter-Research Science Center
VL 617
UT 000485730200008
BP 95
EP 112
DI 10.3354/meps12574
ID 61564
ER

EF