Nonrandom distribution of chum salmon stocks in the Bering Sea and the North Pacific Ocean estimated using mitochondrial DNA microarray

More than 1,000 age-identified chum salmon Oncorhynchus keta collected at 23 stations in the Bering Sea and the North Pacific Ocean in June to July 2003 were used to estimate their origin of stocks using a DNA microarray developed for analyzing the mitochondrial (mt)DNA haplotypes. The observed hapl...

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Bibliographic Details
Published in:Fisheries science 2009-04, Vol.75 (2), p.359-367
Main Authors: Moriya, S.(Nisshinbo Industries Inc., Chiba (Japan). Research and Development Center), Sato, S, Yoon, M, Azumaya, T, Urawa, S, Urano, A, Abe, S
Format: Article
Language:English
Subjects:
ADN
ANIMAL MIGRATION
ANIMAL POPULATION
BERING SEA
Biomedical and Life Sciences
DISTRIBUCION GEOGRAFICA
DISTRIBUTION GEOGRAPHIQUE
DNA
Fish
Fish & Wildlife Biology & Management
Food Science
Freshwater & Marine Ecology
GEOGRAPHICAL DISTRIBUTION
Haplotypes
IDENTIFICACION
IDENTIFICATION
Life Sciences
MAR DE BERING
MER DE BERING
METHODE STATISTIQUE
METODOS ESTADISTICOS
MIGRACION ANIMAL
MIGRATION ANIMALE
MITOCHONDRIA
Mitochondrial DNA
MITOCHONDRIE
MITOCONDRIA
NORTH PACIFIC
ONCORHYNCHUS KETA
Original Article
PACIFICO DEL NORTE
PACIFIQUE NORD
POBLACION ANIMAL
Ponds
POPULATION ANIMALE
Salmon
STATISTICAL METHODS
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Summary:More than 1,000 age-identified chum salmon Oncorhynchus keta collected at 23 stations in the Bering Sea and the North Pacific Ocean in June to July 2003 were used to estimate their origin of stocks using a DNA microarray developed for analyzing the mitochondrial (mt)DNA haplotypes. The observed haplotype distribution was nearly the same as that reported previously for fish collected in September 2002 and 2003 in the present surveyed areas. A conditional maximum-likelihood method for estimation of stock compositions indicated that the Japanese stocks mainly distributed in north central Bering Sea, whereas the Russian stocks were mainly in western Bering Sea. The North American stocks were abundant in eastern Bering Sea and around the Aleutian Islands. Such an area-specific stock composition was not significantly different between mature and immature fish. Thus, the combined results of 2 years suggest that the distribution of chum salmon is nonrandom in the surveyed areas in summer and autumn, and that fish of the same origin migrate together to the same area irrespective of age.
ISSN:0919-9268
1444-2906
DOI:10.1007/s12562-009-0062-8