The observation recorded the presence of 9 species of rotifers of the genus Brachionus viz., Brachionus falcatus, Brachionus forficula, Brachionus angularis, Brachionus quadridentatus, Brachionus bidentata, Brachionus calyciflorus, Brachionus rubens, Brachionus urceolaris and Brachionus caudatus. The detailed taxonomical features were studied of the different Brachionus. The density (mean) of different rotifer species of the Genus Brachionus in the studied pond ecosystem was recorded. The percentage composition of different species under the genus Brachionus was also observed. Seasonal variation of the different species showed highest density in the winter season and lowest density in the summer season. The study infers that different species of Brachionus although prefer different environmental requirements, co-exist successfully in the same pond and dynamic nature of the lentic ecosystem as well as the impact of competitive interactions may be expected to influence the seasonal variation of Brachionus population.
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2022: 6.012
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