北海道常呂川の汚水生物学的研究

DOI Web Site

書誌事項

タイトル別名
  • POLLUTION-BIOLOGICAL STUDIES OF THE RIVER TOKORO-GAWA, HOKKAIDO
  • ホッカイドウ トコロガワ ノ オスイ セイブツガクテキ ケンキュウ

この論文をさがす

抄録

To assess the degree of water pollution in the Tokoro River, Kitami, Hokkaido, the benthic micro-organisms were studied and discussed according to the saprobic system. The river rises from Mt. Ishikari-dake and flows down through the Kitami Plain to the Okhotsk Sea. Samples were taken at seven stations in the lower half of the river in August, 1960 (see Fig. 1). Examining the predominant species found in each station and their status in the saprobic system, it is indicated that the river is rather clear and may belong to β-mesosaprobic waters (Table 1). The water is, however, contaminated considerably at Wakamatsu-bashi, Kitami City, where the waste water of palp mill flows in. The β-polysaprobic species become predominant in this station. The water quality recovers gradually to the α-or β-mesosaprobic level at the station Chushi-bashi, about 15km below Kitami City. Downstream, the stream maintains its β-mesosaprobic status until it flows into the sea. A map showing the degree of water pollution in various parts of the river was drawn from the data obtained in this study (Fig. 2).

収録刊行物

  • 日本生態学会誌

    日本生態学会誌 12 (5), 191-195, 1962

    一般社団法人 日本生態学会

詳細情報 詳細情報について

問題の指摘

ページトップへ