The Comparison Between Biotic Indices and Diversity Indices in Köprüçay River

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In this study, macrozoobenthic invertebrate samples were collected at 7 stations on the Köprüçay River, and totally 85 taxa were identified. Diversity and biotic indices applied on the macrozoobenthic data and the results were compared with each other. According to Simpson (SDI) and Shannon-Weaver (SWDI) diversity indices, the lowest diversity values were determined at 7^th station, the highest values were determined at 3^rd and 5^th stations. The various biotic indices used to determine water quality. BMWP and ASPT score values showed similarity with the diversity values. According to BMWP and ASPT, 7^th station was determined as the most polluted, 3^rd station was the cleanest area in this river. Also, water quality classes of The Köprüçay River were determined by using various versions of Saprobic index (German Saprobic Index [old and new version], Czech Saprobic Index, Romania Saprobic Index, Slovakian Saprobic Index). As a result, in this study was determined that all of biotic indices obtained seem to support each other and water quality classes showed an alteration from oligosaprobic to alfamesosaprobic. The correlations between diversity indices and biotic indices were determined by using Pearson correlation analysis. According to Pearson correlation analysis, diversity indices was positively correlated with biotic indices. Diversity values increased in unpolluted areas, while values decreased in polluted areas.

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Köprüçay River , Biotic and Diversity Indices , ASTERICS

Süleyman Demirel University Journal of Eğirdir Fisheries Faculty

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Süleyman Demirel University Journal of Eğirdir Fisheries Faculty