千曲川水系の水棲昆虫相の研究(IV) : 上流部支流のfaunaとstanding cropについて
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概要
- 論文の詳細を見る
1. A quantitative survey of the aquatic insects in seven tributaries of the upper region of the Chikuma River has been undertaken at 22 stations by members of the research group of Chikuma from March 1957 to January 1958. 2. The number of species collected from these stations was 53,among which 16 were Trichoptera, 12 were Ephemera, 6 were Diptera and the rest belonged to Coleoptera and Neuroptera. 3. The dominant species in the upper region of the river were found to be Ephemera, but in the lower region Trichoptera species were abundant. When the type of river becomes "Bb" the nymph of Potamonthus kamonis took the
- 日本生態学会の論文
- 1960-02-01