Namratha, K. M. and Mahadevaswamy, M. and Harsha, T. S. (2022) A Comparative Study of Two Freshwater Lakes of Mysore with Different Pollution Status. Indian Journal of Natural Sciences, 13 (73). pp. 4500-4512. ISSN 0976 – 0997
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A comparative study of Physico-chemical parameters with Zooplankton abundance and two freshwater lakes was conducted for a period of two years from February 2018 to February 2020. The results showed that the most abundant zooplankton are phylum Rotifera in Dalvoy lake, followed by class Copepoda, Order Cladocera and Ostracod. Physico-chemical analysis showed that the surface water of Dalvoy lake is highly polluted due to eutrophication. The Rotifers are more abundant than any other zooplankton and group microcrustaceans i.e., ostracods abundance has low as they show high sensitivity to pollution. Cladocera showed a significant negative correlation with CO2 and BOD, but a positive correlation with Nitrate. Ostracods showed a negative correlation with atmosphere and a positive correlation with COD. In total zooplankton abundance showed a negative correlation with Conductivity, Chloride and Phosphate. In Varuna Lake crustacean abundance, is followed by copepods, rotifers and ostracods as they show high sensitivity to pollution. Zooplankton abundance is because of seasonal variations, crustaceans were abundant and diverse. When compared to other groups, Varuna Lake noticed that the pH measured in the field showed a negative correlation with copepods and a positive correlation with Calcium, Conductivity and hardness of the water sample showed a positive correlation with Cladocerans, Chloride shows a negative correlation with Ostracods. The Abundance of Zooplankton showed no significance with any Physico-chemical parameters.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Physico-chemical parameters, Zooplankton, Dalvoy lake, Varuna Lake, Crustaceans, Cladocera, Rotifera, Copepoda. |
| Subjects: | B Life Science > Zoology |
| Divisions: | Yuvaraj college |
| Depositing User: | C Swapna Library Assistant |
| Date Deposited: | 13 Jun 2023 09:43 |
| Last Modified: | 13 Jun 2023 09:43 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/17520 |
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