Differences in the growth patterns of fry among chum salmon <I>Oncorhynchus keta</I> families

DOI JASI Web Site 1 Citations
  • Ando Daisei
    Salmon and Freshwater Fisheries Research Institute, Hokkaido Research Organization Laboratory of Marine Life Science and Genetics, Graduate School of Agricultural Science, Tohoku University
  • Sasaki Yoshitaka
    Doto Research Branch, Salmon and Freshwater Fisheries Research Institute, Hokkaido Research Organization
  • Miyakoshi Yasuyuki
    Salmon and Freshwater Fisheries Research Institute, Hokkaido Research Organization
  • Yasutomi Ryohei
    Salmon and Freshwater Fisheries Research Institute, Hokkaido Research Organization
  • Iijima Anai
    Salmon and Freshwater Fisheries Research Institute, Hokkaido Research Organization
  • Shimoda Kazutaka
    Salmon and Freshwater Fisheries Research Institute, Hokkaido Research Organization
  • Nakajima Masamichi
    Laboratory of Marine Life Science and Genetics, Graduate School of Agricultural Science, Tohoku University

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Other Title
  • サケ稚魚における家系間の成長様式の違い
  • サケ チギョ ニ オケル カケイ カン ノ セイチョウ ヨウシキ ノ チガイ

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Abstract

Twenty-five chum salmon Oncorhynchus keta families were produced using a 5×5 diallel mating design, and the body weights and specific growth rates (SGRs) were measured from 0 to 99 days after emergence. The body weights of the fry differed in the same developmental stages among the families. In addition, the mean body weights of fry that originated from small eggs were low, but their SGRs were high. These results suggest that the body sizes of chum salmon fry are strongly governed by the initial egg size, but that their body size and growth rate at each developmental stage vary depending on the combination of sire and dam.

Journal

  • Aquaculture Science

    Aquaculture Science 63 (1), 89-98, 2015

    Japanese Society for Aquaculture Science

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