Stock structure of Japanese flounder inferred from morphological and genetic analyses

Stock structure of Japanese flounder Paralichthys olivaceus has been inferred mainly from either morphological or genetic analyses. However, because the results of both analyses did not always agree with each other, an inclusive conclusion has never been obtained. In this study, the stock structure...

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Bibliographic Details
Published in:Fisheries science 2007-10, Vol.73 (5), p.1104-1112
Main Authors: Shigenobu, Y.(Tohoku National Fisheries Research Inst., Shiogama, Miyagi (Japan)), Hayashizaki, K, Asahida, T, Ida, H, Saitoh, K
Format: Article
Language:English
Subjects:
ADN
AIC
ALETAS (PEZ)
amova
ANATOMIA ANIMAL
ANATOMIE ANIMALE
ANIMAL MORPHOLOGY
Aquaculture
Dehydrogenase
DNA
dorsal and anal fin rays
ESTRUCTURA DE LA POBLACION
FINS
Fish
Fish stocking
Haplotypes
Heterogeneity
Marine
MICROSATELITES
MICROSATELLITE
MICROSATELLITES
MITOCHONDRIA
mitochondrial DNA
MITOCHONDRIE
MITOCONDRIA
Morphology
NAGEOIRE
PARALICHTHYS OLIVACEUS
Pleuronectiformes
POPULATION STRUCTURE
Statistical analysis
STRUCTURE DE LA POPULATION
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Summary:Stock structure of Japanese flounder Paralichthys olivaceus has been inferred mainly from either morphological or genetic analyses. However, because the results of both analyses did not always agree with each other, an inclusive conclusion has never been obtained. In this study, the stock structure has been inferred from both morphological and genetic analyses using 722 wild Japanese flounder collected from nine locations along the Japanese coast. The dorsal and anal fin ray counts were larger in the southern than in the northern populations. In total, 1041 bp of mitochondrial NADH dehydrogenase subunit‐2 (ND2) and 1830 bp of ND5 sequences were aligned. There are 578 variable sites in the concatenated sequence from the two genes, which defined a total of 490 haplotypes. Both results of morphological and genetic analyses indicated that the western Kyushu group, which included the Nagasaki and Kagoshima populations, was divided from the other seven populations. This is the first report to reveal the heterogeneity of the western Kyushu group based on statistical analysis.
ISSN:0919-9268
1444-2906
DOI:10.1111/j.1444-2906.2007.01442.x