CHIRONOMIDS AS WATER QUALITY INDICATORS IN THE RIVER MIGNONE (CENTRAL ITALY)

摘要: Chironomids of the River Mignone (Central Italy) were studied in order to examine their community structure and relationship some common biological indices (Biotic Score, Extended Biotic Index, Indice Biotique de Qualite Generale) utilizing total macroinvertebrate fauna (chironomids generally at family level) for water quality assessment rivers. A 36 taxa belonging Tanypodinae (2 taxa), Orthocladiinae (22 taxa) Chironominae (12 was collected seven stations four times during a year. The results support importance chironomid identification studies rivers, demonstrate usefulness factorial correspondence analysis as ordination technique based on both qualitative quantitative data determine environmental gradients. value bioindicator discussed, assemblages related river according functional feeding groups.