FN Archimer Export Format
PT J
TI Modeling fish growth and reproduction in the context of the Dynamic Energy Budget theory to predict environmental impact on anchovy spawning duration
BT 
AF PECQUERIE, Laure
   PETITGAS, Pierre
   KOOIJMAN, Sebastiaan
AS 1:1;2:1;3:2;
FF 1:;2:PDG-DOP-DCN-EMH;3:;
C1 IFREMER, Dept Ecol & Modeles Halieut, F-44311 Nantes 3, France.
   Vrije Univ Amsterdam, Dept Theoret Biol, NL-1081 HV Amsterdam, Netherlands.
C2 IFREMER, FRANCE
   UNIV VRIJE AMSTERDAM, NETHERLANDS
SI NANTES
SE PDG-DOP-DCN-EMH
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 1.803
TC 116
UR https://archimer.ifremer.fr/doc/2009/publication-6769.pdf
LA English
DT Article
CR JUVAGA/03
   JUVESU99
   PEL 2000
   PEL 2001
   PELGAS 2002
   PELGAS 2003
   PELGAS 2004
   PELGAS 2005
BO Thalassa
   Gwen Drez
DE ;Bay of Biscay;Engraulis encrasicolus;Starvation;Environmental conditions;Condition factor;Multiple Batch Spawning;Reproductive Biology;DEB Theory
AB Spawning location and timing are critical for understanding fish larval survival. The impact of a changing environment on spawning patterns is, however, poorly understood. A novel approach is to consider the impact of the environment on individual life histories and subsequent spawnings. In the present work, we extend the Dynamic Energy Budget (DEB) theory to investigate how environment variability impacts the spawning timing and duration of a multiple-batch spawning species. The model is successfully applied to reproduce the growth and reproduction of anchovy (Engraulis encrasicolus) in the Bay of Biscay. The model captures realistically the start and ending of the spawning season, including the timing of the spawning events, and the change in egg number per batch. Using a realistic seasonal forcing of temperature and food availability derived from a bio-physical model, our simulation results show that two thirds of the total spawned mass already accumulates before the start of the spawning season and that the condition factor increases with body length. These simulation results are in accordance with previous estimations and observations on growth and reproduction of anchovy. Furthermore, we show how individuals of equal length can differ in reproductive performance according to the environmental conditions they encounter prior to the spawning season. Hatch date turns out to be key for fecundity at age-1 as it partly controls the ability to build up reserves allocated to reproduction. We suggest the model can be used to realistically predict spawning in spatially and temporally varying environments and provide initial conditions for bio-physical models used to predict larval survival.
PY 2009
PD OCT
SO Journal of Sea Research
SN 1385-1101
PU Elsevier
VL 62
IS 2-3
UT 000271529700007
BP 93
EP 105
DI 10.1016/j.seares.2009.06.002
ID 6769
ER

EF