Effectiveness of Using a Vinyl Sheet to Reduce Mortality Caused by Collision During Rearing of Pacific Saury <I>Cololabis saira</I>

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  • Nakaya Mitsuhiro
    Hokkaido National Fisheries Research Institute, Fisheries Research Agency Kakikin Corporation
  • Morioka Taizo
    Hokkaido National Fisheries Research Institute, Fisheries Research Agency
  • Fukunaga Kyohei
    Hokkaido National Fisheries Research Institute, Fisheries Research Agency
  • Murakami Naoto
    Hokkaido National Fisheries Research Institute, Fisheries Research Agency
  • Ichikawa Takashi
    Hokkaido National Fisheries Research Institute, Fisheries Research Agency
  • Sekiya Sachio
    Management Section of National Center for Stock Enhancement, Fisheries Research Agency

Bibliographic Information

Other Title
  • サンマ飼育下の死亡軽減に対するビニールシート使用の効果
  • Effectiveness of using a vinyl sheet to reduce mortality caused by collision during rearing of Pacific saury Cololabis saira

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Description

To reduce mass mortality of Pacific saury caused by collision with the tank wall, we examined rearing of saury in a tank with a vinyl sheet attached to the tank wall, and no vinyl sheet tank. We compared survival rate and ratio of the lower jaw length to the knob length of those fish. Survival rate of the former was higher than the latter. No significant difference was recognized for the ratio. These results suggest that the vinyl sheet could not reduce the damage to the lower jaw, but it could reduce the mortality caused by collision.

Journal

  • Aquaculture Science

    Aquaculture Science 58 (2), 301-303, 2010

    Japanese Society for Aquaculture Science

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