FN Archimer Export Format
PT J
TI Dispersal kernels and their drivers captured with a hydrodynamic model and spatial indices: A case study on anchovy (Engraulis encrasicolus) early life stages in the Bay of Biscay
BT 
AF HURET, Martin
   PETITGAS, Pierre
   WOILLEZ, Mathieu
AS 1:;2:;3:;
FF 1:PDG-DOP-DCN-EMH;2:PDG-DOP-DCN-EMH;3:PDG-DOP-DCN-EMH;
C1 IFREMER, Dept Ecol & Modeles Halieut, F-44311 Nantes, France.
C2 IFREMER, FRANCE
SI NANTES
SE PDG-DOP-DCN-EMH
IN WOS Ifremer jusqu'en 2018
IF 3.269
TC 61
UR https://archimer.ifremer.fr/doc/00024/13544/10577.pdf
LA English
DT Article
CR ECLAIR1
   ECLAIR2
   ECLAIR3
   ECLAIR4
   ECLAIR5
   PEL 2000
   PEL 2001
   PELGAS 2002
   PELGAS 2003
   PELGAS 2004
   PELGAS 2005
   PELGAS 2006
   PELGAS 2007
BO Thalia
   Cote D'Aquitaine
   Gwen Drez
   Côtes De La Manche
   Thalassa
AB Dispersal of fish early life stages explains part of the recruitment success, through interannual variability in spawning, transport and survival. Dispersal results from a complex interaction between physical and biological processes acting at different temporal and spatial scales, and at the individual or population level. In this paper we quantify the response of anchovy egg and larval dispersal in the Bay of Biscay to the following sources of variability: vertical larval behaviour, drift duration, adult spawning location and timing, and spatio-temporal variability in the hydrodynamics. We use simulations of Lagrangian trajectories in a 3-dimensional hydrodynamic model, as well as spatial indices describing different properties of the dispersal kernel: the mean transport (distance, direction), its variance, occupation of space by particles and their aggregation. We show that larval drift duration has a major impact on the dispersion at scales of not, vert, similar100 km, but that vertical behaviour becomes dominant reducing dispersion at scales of not, vert, similar1–10 km. Spawning location plays a major role in explaining connectivity patterns, in conjunction with spawning temporal variability. Interannual variability in the circulation dominates over seasonal variability. However, seasonal patterns become predominant for coastal spawning locations, revealing a recurrent shift in the direction of dispersal during the anchovy spawning season.
PY 2010
PD OCT
SO Progress In Oceanography
SN 0079-6611
PU Pergamon-elsevier Science Ltd
VL 87
IS 1-4
UT 000286298700002
BP 6
EP 17
DI 10.1016/j.pocean.2010.09.023
ID 13544
ER

EF