Department of Zoology, Nehru Gram Bharati (Deemed to be University), Kotwa-Jamunipur-Dubawal, Prayagarj-221 505, India
1Regional Office, ICAR-Central Inland Fisheries Research Institute, Panna Lal Road, Prayagraj-211 002, India
A study was conducted in the river Belan (156 km), a north central Indian river of Vindhyan ranges to determine diatom diversity from headwater to mouth. Samples were collected 5 different stations by scraping 3×3 cm2. area of substratum (stones) during winter seasonDecember 2021 to March 2023. The count data were computed diversity indices (Margalef D’, Shannon diversity H’) and evenness (E). Total of 119 diatom taxa belonging to 28 genera were identified. H and D indices ranged from 2.77 to 2.62 and 26.709 to 18.4979, respectively. Evenness value was 0.81 to 0.77. The gradual decline in diversity and evenness was recorded from S1 to S5 except at S3. The anthropogenic activities impact (agriculture) at S3 was responsible for extreme low of diversity and evenness.
Richness, Diversity indices, Diatom, Land use, Belan
