FN Archimer Export Format
PT J
TI Coupling hydrodynamic and individual-based models to simulate long-term larval supply to coastal nursery areas
BT 
AF ROCHETTE, Sebastien
   HURET, Martin
   RIVOT, Etienne
   LE PAPE, Olivier
AS 1:1,2;2:2;3:1;4:1;
FF 1:PDG-ODE-DYNECO-AG;2:PDG-RBE-STH-LBH;3:;4:;
C1 Agrocampus Ouest, UMR 985 Inra Ecol & Sante Ecosys, CS 84215, F-35042 Rennes, France.
   IFREMER, Dept Dynam Environm Cotier, F-29280 Plouzane, France.
C2 AGROCAMPUS OUEST, FRANCE
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-DYNECO-AG
   PDG-RBE-STH-LBH
IN WOS Ifremer jusqu'en 2018
   copubli-france
IF 2.2
TC 38
UR https://archimer.ifremer.fr/doc/00085/19598/17236.pdf
LA English
DT Article
DE ;eastern Channel;hydrodynamic model;individual-based model;larval supply;nursery grounds;recruitment variability;Solea solea
AB For many marine fish species, recruitment is strongly related to larval survival and dispersal to nursery areas. Simulating larval drift should help assessing the sensitivity of recruitment variability to early life history. An individual-based model (IBM) coupled to a hydrodynamic model was used to simulate common sole larval supply from spawning areas to coastal and estuarine nursery grounds at the population scale in the eastern Channel on a 14-yr time series, from 1991 to 2004. The IBM allowed each particle released to be transported by currents from the hydrodynamic model, to grow with temperature, to migrate vertically giving stage development, and possibly to die according to drift duration, representing the life history from spawning to metamorphosis. Despite sensitivity to the larval mortality rate, the model provided realistic simulations of cohort decline and spatio-temporal variability of larval supply. The model outputs were analysed to explore the effects of hydrodynamics and life history on the interannual variability of settled sole larvae in coastal nurseries. Different hypotheses of the spawning spatial distribution were also tested, comparing homogeneous egg distribution to observation and potential larval survival (PLS) maps. The sensitivity analyses demonstrated that larval supply is more sensitive to the life history along larval drift than to the phenology and volume of spawning, providing explanations for the lack of significant stock–recruitment relationship. Nevertheless, larval supply is sensitive to spawning distribution. Results also suggested a very low connectivity between supposed different sub-populations in the eastern Channel.
PY 2012
SO Fisheries Oceanography
SN 1054-6006
PU Wiley-blackwell
VL 21
IS 4
UT 000304819100001
BP 229
EP 242
DI 10.1111/j.1365-2419.2012.00621.x
ID 19598
ER

EF