【摘要】 本文通过对南京近郊三个科、四个种蜉蝣稚虫(南京宽基蜉Choroterpesnan jingensis You et al.紫金吉氏蜉Gilliesia zijingensis sp.nov.Gui et Zhang.细蜉蝣Gaenis sp.及扁蜉蝣Heptagenia sp.)致死溶解氧浓度的研究。指出紫金吉氏蜉和南京宽基蜉、扁蜉蝣分别在不同要求下为良好的污染指示生物。更多还原

【Abstract】 This report is concluded that Gilliesia Chorterpes and Heptagenia are respectively better pollution, indicating these creatures in different condition after making researches on May-fly nymph’s terminal potency of rabid oxygen in water, involve three families four species. When a brook is slightly polluted, Gilliesia will disappear, and when Choroterpes and Heptagenia can’t be found in brook, the water must have been seriously polluted, and effective measures should be taken to deal with the situation as quickly as possible.更多还原