FN Archimer Export Format
PT J
TI Genetic population structure of the Swordfish (Xiphias gladius) in the southwest Indian Ocean: Sex-biased differentiation, congruency between markers and its incidence in a way of stock assessment
BT 
AF MUTHS, Delphine
   GREWE, R.
   JEAN, Claire
   BOURJEA, Jerome
AS 1:1;2:2;3:1;4:1;
FF 1:PDG-DOP-DCM-HMT-RHREUNION;2:;3:PDG-DOP-DCM-HMT-RHREUNION;4:PDG-DOP-DCM-HMT-RHREUNION;
C1 IFREMER, Delegat Reunion, F-97822 Le Port, France.
   CSIRO Marine & Atmospher Res, Hobart, Tas 7000, Australia.
C2 IFREMER, FRANCE
   CSIRO, AUSTRALIA
SI LA REUNION
SE PDG-DOP-DCM-HMT-RHREUNION
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
IF 1.531
TC 25
UR https://archimer.ifremer.fr/doc/2009/publication-6455.pdf
LA English
DT Article
DE ;Indian Ocean;Population genetic;MtDNA;Microsatellites;Swordfish
AB Genetic variation was surveyed at 11 microsatellite loci and at 517 bp of the mitochondrial control region to investigate the presence of genetic stock structure in swordfish (Xiphias gladius) in four proximal localities of the southwest Indian Ocean. One aim of this study was to serve as a preliminary examination for congruency of structure detected by these two genetic markers, prior to conducting a more comprehensive basin-wide survey of the Indian Ocean and nearby surrounding areas. Analyses of multilocus microsatellite genotypes and mitochondrial control region sequences both revealed a great homogeneity between samples. Genetic diversity detected at the regional scale was not significantly higher than detected at the local scale. Results suggest that the southwest Indian Ocean globally functions as a unique panmictic population. However, some discrete genetic differences appeared that could possibly indicate influence from a second genetic pool in the northern part of the Indian Ocean. This structure appeared to be sex-dependent with genetic differences higher among female than among male samples. This result may indicate a higher level of spawning area fidelity for females with a subsequent sampling bias tending to homogenise male genotypic distributions. (c) 2009 Elsevier B.V. All rights reserved.
PY 2009
PD MAY
SO Fisheries Research
SN 0165-7836
PU Elsevier
VL 97
IS 3
UT 000266543700011
BP 263
EP 269
DI 10.1016/j.fishres.2009.03.004
ID 6455
ER

EF