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    STUDIA BIOLOGIA - Issue no. 1 / 2009  
         
  Article:   WATER QUALITY ASSESSMENT USING BIOTIC INDICES BASED ON BENTHIC MACROINVERTEBRATES IN THE SOMEŞUL MIC CATCHMENT AREA.

Authors:  ANCA AVRAM, MIRELA CÎMPEAN, ALIN JURCĂ, NATALIA TIMUŞ.
 
       
         
  Abstract:   The present paper presents the results of using biotic indices in assessing water quality based on benthic macroinvertebrates from 16 sampling sites located in the upper and middle Someşul Mic catchment area. Four biotic indices were considered: B.M.W.P. (Biological Monitoring Working Party), A.S.P.T. (Average Score Per Taxon), S.G.B.I. (Standardized Global Biotic Index) and E.B.I. (Extended Biotic Index), used in different European countries. Qualitative macroinvertebrate samples were collected from 16 the sampling sites. Laboratory analyses included taxonomical identifications to the levels required by the four biotic indices. The results showed good and very good water quality at the sampling sites located in the upper Someşul Mic catchment area (on the Someşul Rece and Someşul Cald Rivers). The water quality changed on going downstream, reaching the worst status downstream Cluj Napoca.

Keywords: water quality, biotic indices, macroinvertebrates, the Someşul Mic River
 
         
     
         
         
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