摇蚊幼虫分布及其与水质的关系

摇蚊幼虫是水体中分布范围广的一类水生昆虫 ,它们的一些种类对水质的变化 ,如营养盐、重金属、ｐＨ和溶解氧等极为敏感 ,另有些种类则适应有机污染、重金属类毒物污染。在水质的生物学评价工作中 ,利用其种类敏感和耐污染特性 ,反映水质的变化和污染程度 ,是生物监测重要的评价依据。 2 0世纪 80年代 ,欧洲许多国家在研究酸雨对生态环境影响时 ,多采用摇蚊幼虫作为指示生物 ,也有的利用摇蚊幼虫口器或触角形态变化监测湖泊或河流水质1 0～ 1 3 ]。国内有关摇蚊的研究近年来多偏重于成虫的分类学研究6、8、9],对幼虫的研究则多利用底栖大…

Distribution of Chironomidae larvae and its Relation to Water Quality

According to community distribution of Chironomidae larvae in four rivers of Liaoning province and comparison studies on the relationship among water quality physicochemistry indices,relationships between physicochemistry factors and Chironomidae larvae species and quantity in unit area were established. The paper puts forward Chironomidae larvae as an indicator organism to indicate water classification and water quality evaluation method.