author(s)
Idowu EO, Edward JB, Adewumi AA and Oyeniran BH

abstract
Benthic macro-invertebrates and some physico-chemical parameters samples were taken for three months from July to September 2017 with the aim to evaluate macro-invertebrate fauna and water quality of Ogbese River, along polytechnic Road Ado-Ekiti. A total number of 11 benthic macro-invertebrates taxa were found and were recorded based on their Phylum classification. The macro-benthos obtained from River Ogbese comprised mainly of two phyla namely Mollusca represented by 8 species; Hydrobia guyenori, Saulea vitreas, Assimina heisei, Pila weiner, Lanotes libycus, Bellamya unicollar, Soapitic dageti and Afropomus balanoid. The other phylum was represented by Tipula sp., Arenicolar sp. and Chironomus sp. The result of the physico-chemical parameters at different sample stations for each Month showed the variation between the benthic organisms and water parameters as significant factors for biological indicator of Ogbese River. Statistical analysis of the result showed that there was significant relationships between some of the physico-chemical parameters including temperature, alkalinity, transparency, free carbon-dioxide, conductivity, pH, total dissolved solid, dissolve oxygen and conductivity of the River. The water quality was determined as moderately polluted. Obtained environmental variables from water samples showed that the temperature, dissolved oxygen, pH, total dissolved solids and electrical conductivity were the most important parameters in explaining the macro-invertebrates community variation in Ogbese River.