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A Numerical Assessment of Organic Pollution in the River Yoshino and Its Tributaries in Tokushima Prefecture, Using Attached Diatom Assemblages
四国吉野川の有機汚濁に対する付着珪藻群集を指標とした生物学的数量評価
1997
Japanese Journal of Water Treatment Biology
四国吉野川の有機汚濁に対する付着珪藻群集を指標とした生物学的数量評価
In the River Yoshino and its tributaries,30 samples of attached diatom assemblage on the river bed were collected and some physicochemical values of river water in each sampling site were measured in September and October 1996 and February 1997.In this study,the following results were obtained. 1.The DAIpo values ranged from 55 to 91 in this river system,indicating that the degree of water pollution at almost all sites corresponds to a-oligosaprobic in the former saprobic level. 2.From the
doi:10.2521/jswtb.33.171
fatcat:4ym5mu2x55aspjd7q5w3rg6qjy