野池で在来魚と混生する外来魚の環境順応状況の研究

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タイトル別名
  • ノイケ デ ザイライギョ ト コンセイ スル ガイライギョ ノ カンキョウ ジュンノウ ジョウキョウ ノ ケンキュウ
  • A Study of Environmental Accommodation State of Exotic Fish Mixed with Ordinal Fish in a Pond

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A state of environmental accommodation of fish-eater fish from oversea, which are living together with ordinal fish in a pond, is investigated by analyzing a correlation between length and weight of fish. We study deviation from a cubic law which is satisfied by individuals living in a good condition environment. A fatness coefficient also is derived. By these analyses, we clarify how extents the fish accommodate themselves to the environment of the pond.

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