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Macro invertebrates composition and physico-chemical characteristics of Garin Garba Stream Tumu, Gombe, Nigeria was investigated between April and June, 2019. Physical and chemical characteristics includes temperature, pH, Electrical conductivity, turbidity, depth and width and macro invertebrates were sampled fortnightly for a period of three months. It was recorded that physico-chemical characteristics of the four sampling stations shows no variation in all the sampling stations. Shannon Weiner index was employed to determine the abundance of macro invertebrates in each sampling station. The results showed a total of 68 individual organisms of Macro invertebrates in 5 family among the four invertebrates taxa of Coleoptera, Hemiptera, Odonata and Mollusca. The taxa abundance of Garin Garba Stream arranged in lessening trend as Mollusca > Odonata > Coleoptera >Hemiptera with percentage composition of invertebrates values 45.59%, 38.23%, 8.82%, and 7.52% respectively. The Shannon Weiner diversity index for the four sampling stations of A, B, C and D were 1.5, 1.11, 1.03 and 1.54 respectively. The Macro invertebrates abundance and distribution observed in this study showed Garin Garba Stream can support and sustain various organisms.

Benthic Macro Invertebrates Composition And Physico-Chemical Characteristics Of Garin Garba Stream, Tumu, Gombe State, Nigeria