Table 9. Comparison community structure index on benthic macroinvertebrates at each sampling sites (mean±S.D)

Site	Dominance index (DI)		Species diversity index (H')		Species richness index (RI)		Evenness index (J')
	2020	2022	2020	2022	2020	2022	2020	2022
St. 1	0.54±0.23	0.44	2.89±0.77	2.43	3.93±0.38	4.58	0.65±0.15	0.80
St. 2	0.46±0.01	0.45	3.22±0.43	2.54	4.06±1.91	4.99	0.77±0.10	0.81
St. 3	0.59±0.01	0.85	2.94±0.21	0.92	3.72±1.52	2.05	0.70±0.11	0.38
St. 4	0.59±0.09	0.42	2.81±0.01	2.19	3.25±1.04	2.92	0.68±0.05	0.88
St. 5	0.38±0.03	0.87	3.75±0.01	0.84	4.63±0.53	2.37	0.84±0.04	0.33