FN Archimer Export Format
PT J
TI Geographic variability of sardine dynamics in the Iberian Biscay region
BT 
AF SILVA, A.
   SKAGEN, D. W.
   URIARTE, A.
   MASSE, Jacques
   SANTOS, M. B.
   MARQUES, V.
   CARRERA, P.
   BEILLOIS, Pierre
   PESTANA, G.
   PORTEIRO, C.
   STRATOUDAKIS, Y.
AS 1:1;2:2;3:3;4:4;5:5;6:1;7:6;8:4;9:1;10:5;11:1;
FF 1:;2:;3:;4:PDG-DOP-DCN-EMH;5:;6:;7:;8:PDG-DOP-DCN-EMH;9:;10:;11:;
C1 IPIMAR, Inst Nacl Recursos Biol, P-1449006 Lisbon, Portugal.
   Inst Marine Res, N-5817 Bergen, Norway.
   AZTI Tecnalia, Pasaia 20110, Spain.
   IFREMER, F-44311 Nantes 3, France.
   Ctr Oceanog Vigo, Inst Espanol Oceanog, Vigo 36280, Spain.
   Museo Mar Galicia, Vigo 36280, Spain.
C2 IPIMAR, PORTUGAL
   INST MAR RES, NORWAY
   AZTI, SPAIN
   IFREMER, FRANCE
   IEO, SPAIN
   MUSEO MAR GALICIA, SPAIN
SI NANTES
SE PDG-DOP-DCN-EMH
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 1.92
TC 27
UR https://archimer.ifremer.fr/doc/2009/publication-6459.pdf
LA English
DT Article
DE ;Stock structure;Small pelagic fish;Population dynamics;Iberian Peninsula
AB The spatio-temporal variability in the distribution, demographic structure, recruitment, and mortality of sardine within the Iberian Biscay region is described using area-disaggregated data collected during acoustic surveys and at ports since the mid-1980s. Multiple regression models were used to describe log numbers-at-age obtained annually in ten areas covered by three surveys to test the existence of geographic differences in selectivity-at-age, recruitment strength, and mortality and to infer plausible migration routes. Within Iberian waters, sardine biomass was mainly concentrated off western Portugal and the Gulf of Cadiz. In the Bay of Biscay, biomass levels were comparable with those off western Portugal. Recruitment was localized in a few areas (northern Portugal and the Gulf of Cadiz and Bay of Biscay), intermingling with areas dominated by older fish. Recruitment was generally asynchronous among areas, although some recruitment peaks were noticeable across wider regions. Spatial patterns related to strong and weak year classes and year-class slopes were also noted. Clearly distinct dynamics were not evidenced within the Atlanto-Iberian sardine stock area, but the validity of the northern limit was questioned by the connection between sardine dynamics in the Bay of Biscay and the Cantabrian Sea. The results provided some evidence consistent with the hypothesis of sardine movement from recruiting grounds to areas farther along the coast as they grow.
PY 2009
PD APR
SO ICES Journal of Marine Science
SN 1054-3139
PU Oxford university press
VL 66
IS 3
UT 000264392100008
BP 495
EP 508
DI 10.1093/icesjms/fsn225
ID 6459
ER

EF