付着藻類を指標としたアルミニウムの河川生態系への影響に関する基礎的研究

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タイトル別名
  • Estimation of the Effects of Al Hydrolysis Products on River Ecosystems Using Attached Algae as Bioindicator

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説明

The influence of Al hydrolysis products on the survival of attached algae in an acidic river was estimated by the bioassay using the diatoms (Nitschia palea and Achnanthes minutissima) as test algal materials. The bioassay was conducted under the pH conditions of 4.5 and 6.0 by culturing the test algal materials in two types of hydrolyzed Al solutions: one solution contained dissolved polymeric Al fraction (Al-b) with a high concentration and the other with a low concentration.<BR>In the bioassay using Nitschia palea under the both pH conditions, the chlorophyll a concentrations decreased rapidly in the solutions containing high concentrations of a polymeric Al fraction compared with those containing low concentrations. In the bioassays using Achnanthes minutissima under the pH condition of 6.0, the chlorophyll a concentrations decreased more rapidly in the solutions containing high concentrations of a polymeric Al fraction than in the other solutions.<BR>From the multi-regression analysis, it was confirmed that Al-b fraction inhibited distinctly the inhabitation of Nitschia palea under the pH conditions of 4.5 and 6.0 and Achnanthes minutissima under the pH condition of 6.0.

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詳細情報 詳細情報について

  • CRID
    1390282679087744128
  • NII論文ID
    130003949547
  • DOI
    10.11532/proes1992.43.493
  • ISSN
    1884829X
    13415115
  • 本文言語コード
    ja
  • 資料種別
    journal article
  • データソース種別
    • JaLC
    • CiNii Articles
    • KAKEN
  • 抄録ライセンスフラグ
    使用不可

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