FN Archimer Export Format
PT J
TI Geographic variability of sardine growth across the northeastern Atlantic and the Mediterranean Sea
BT 
AF SILVA, A
   CARRERA, P
   MASSE, Jacques
   URIARTE, A
   SANTOS, M
   OLIVEIRA, P
   SOARES, E
   PORTEIRO, C
   STRATOUDAKIS, Y
AS 1:1;2:2;3:3;4:4;5:5;6:1;7:1;8:5;9:1;
FF 1:;2:;3:PDG-DOP-DCN-EMH;4:;5:;6:;7:;8:;9:;
C1 Inst Invest Pescas & Mar INIAP IPIMAR, P-1449006 Lisbon, Portugal.
   Museo Mar Galicia, Vigo 36280, Spain.
   IFREMER, F-44311 Nantes, France.
   AZTI, Pasaia 20110, Gipuzkoa, Spain.
   Ctr Oceanograf Vigo, IEO, Vigo 36280, Spain.
C2 IPIMAR, PORTUGAL
   MUSEO MAR GALICIA, SPAIN
   IFREMER, FRANCE
   AZTI, SPAIN
   IEO, SPAIN
SI NANTES
SE PDG-DOP-DCN-EMH
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 1.434
TC 39
UR https://archimer.ifremer.fr/doc/2008/publication-4078.pdf
LA English
DT Article
DE ;Iberian Biscay region;Spatio temporal variation;Growth;Sardina pilchardus
AB This study describes broad-scale spatial variations in sardine growth across the northeastern Atlantic and Mediterranean waters using opportunistic samples collected in recent years. More detailed information on spatial, decadal and seasonal growth variations is provided for the Iberian-Biscay region using data collected in acoustic surveys since the mid-1980s. Growth curves are fitted to annual or monthly length-at-age data using a robust Von Bertalanffy model; parameters for recent samples are compared with literature information using an auximetric plot while differences between areas within the Iberian-Biscay region are tested by log-likelihood ratio tests. Sardine growth performance is generally lower in the Mediterranean and declines across the northeastern Atlantic from the English Channel to north Morocco but increases sharply off Mauritania. Lower growth of Mediterranean sardines is possibly associated to the overall oligotrophy of this Sea while differentiation from the Atlantic is likely sustained by reproductive isolation between populations from the two areas. Within the northeastern Atlantic, size- and age related migrations may partly explain differences in maximum length/age and mean length-at-age between neighbouring areas but the broad-scale latitudinal decline in growth is consistent with adaptation to the north-south decline in seasonal temperature gradients and to the annual cycles of plankton production. Within the Atlantic Iberian waters, sardine grows and improves in condition during spring and summer when the allocation of energetic resources for gonad development cease, temperature is close to the annual maxima and plankton production is high. Variation in sardine length-at-age and growth within the Atianto-lberian stock area has implications for stock structure and needs to be taken into account in the calculation of weight and maturity-at-age for assessment purposes. No evidence of broad temporal changes in sardine growth within the Iberian-Biscay region is obtained. (C) 2007 Elsevier B.V. All rights reserved.
PY 2008
PD APR
SO Fisheries Research
SN 0165-7836
PU Elsevier
VL 90
IS 1-3
UT 000255266900008
BP 56
EP 69
DI 10.1016/j.fishres.2007.09.011
ID 4078
ER

EF