Abstract
Variation at the three microsatellite (ms) DNA loci in chum salmon was applied to estimate preliminarily the stock composition using a conditional maximum likelihood method in more than 700 fish collected from 14 stations in the Bering Sea and adjacent North Pacific Ocean during September 2003. Regional stock assignment accuracy with these msDNA markers was nearly the same as the previous estimation with mitochondrial (mt) DNA for the Japanese and North American stocks, but decreased for Russian stocks. The temporal stock estimation with msDNA gave a nonrandom distribution pattern of chum stocks, in that the Japanese and Russian stocks increased in the western to central Bering Sea, and the North American stocks were abundant in the eastern Bering Sea and near the Aleutian Islands. However, predominance of the North American stocks in nearly all of the surveyed area was different from the previous mtDNA estimation.
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Acknowledgments
We deeply thank the captain and crews of R/V Kaiyo-maru for their efforts to collect high-sea samples and oceanographic data. The present study was supported in part by Grants-in-Aid from the United States North Pacific Research Board to the NPAFC Cooperative Research (R0303), the Fisheries Agency of Japan, Northern Advancement Center for Science and Technology, and by the 21st COE Program of “Marine Bio-Frontier for Food Production” in Hokkaido University sponsored by the Ministry of Education, Culture, Sports, Science and Technology, Japan.
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Yoon, M., Jin, DH. & Abe, S. Preliminary estimation of chum salmon stock composition in the Bering Sea and North Pacific Ocean using polymorphic microsatellite DNA markers. Ichthyol Res 56, 37–42 (2009). https://doi.org/10.1007/s10228-008-0065-y
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DOI: https://doi.org/10.1007/s10228-008-0065-y