| Zooplankton samples from 10 different localities in the adjacent areas of Hyderabad were collected during to September 16 & 17 2022. These water bodies include the permanent stagnant water bodies around Hyderabad. A total of 49 rotifer species were identified. The trophic status showed a clear effect on the distribution of different rotifer species. These species included Brachionus plicatilis, B. quadridentatus, B. unreolaris commonly occurring in brackish water, while Keratella quadrata and Keratella cochlearis were common in freshwater. In the present study 49 species of rotifers belonging to 13 families were recorded. Of the 13 families, Brachionidae was the most represented with 17 species (4 genera), followed by Lecanidae with nine species (1 genera), Philodinidae with four species (3 genera), Notomatidae with three species (2 genera). Asplanchnidae, Mytilinidae, Trocosphaeridae, Fillinidae and Euchlanidae were represented by two species each (1 genus each). Families such as Lepadellidae and Conochilidae were represented by one species each. Polymorphic forms of the genus Brachionidae were also represented during the present study. Three species are identifiable upto generic level. However eutrophic species were also recorded during the present study.
Keywords: Zooplankton, Rotifera, Trophic status, Hyderabad, Polymorphic, Eutrophic species.
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