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VOL. 10, ISSUE 1 (2025)
Studies on abundance of zooplankton population in Salakinakoppa pond of Dharwad. Dharwad Taluk, Karnataka, India
Authors
Shailendra S Mangalawede
Abstract
Abundance of zooplankton population was
studied in the Salakinakoppa pond of the Dharwad taluk, Dharwad district,
Karnataka, from January 2023 to December 2023. Zooplankton samples were
collected every month between 8 am and 10 am from the pond. And samples
were preserved in 4% formalin. Zooplankton identification and counting were carried
out in the laboratory with the help of a Sedwick-Rafter counting cell. Analyzed
results were exhibited that zooplankton populations were observed to be maximum
during the summer season than in winter and monsoon seasons. A greater number
of zooplankton were observed during summer because the temperature of water
leads to the speeding up of chemical reactions. At elevated temperatures,
metabolic activities of organisms increase; hence the number of zooplankton
increases during summer more than in winter and monsoon. Among zooplankton,
rotifer density was observed to be maximum throughout the study period.
Copepods were placed in second position and then cladocera in third position.
Among cladocera, Ceriodaphnia cornuta and Bosminophis longirostris were
recorded abundantly; among copepoda, Tropocyclops leuckarti and Tropocyclopes
prasinus. copepod larvae were dominant and among rotifera Brachionus
calyciflorus, Brachionus falcatus, Keratella tropica, and
Asplanchna priodonta were observed in more numbers throughout the
investigation period. More cladocerans were observed because pond water is very
clean. There is no eutrophication.
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Pages:111-116
How to cite this article:
Shailendra S Mangalawede "Studies on abundance of zooplankton population in Salakinakoppa pond of Dharwad. Dharwad Taluk, Karnataka, India". International Journal of Entomology Research, Vol 10, Issue 1, 2025, Pages 111-116
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