Seasonal Variation of Different Groups of Zooplankton of a Wetland in Relation to Some Abiotic Factors

  • Subhendu Bikash Patra Assistant Professor in Zoology, Brahmananda Keshab Chandra College, Kolkata, India

Abstract

The zooplankton community of the wetland was represented by Protozoa, Rotifera, Cladocera and Copepoda. The Protozoan population includes ciliates and flagellates and the maximum and minimum abundance were 223 and 2 ind./lit respectively. Rotifers, the largest group were represented by a minimum of 9 ind./lit and a maximum of 1425 ind./lit. Copepods, the second largest group, comprised a minimum of 1 ind./lit and a maximum of 708 ind./lit. The other group Cladocerans was found to be in lower profile which showed no definite pattern of their seasonal variation. In this wetland water temperature (WT) varied from 19.75ºc to 34ºc, transparency (TRN) from 31.3 to 82.5 cm, pH from 6.5 to 8.4, dissolved oxygen (DO) ranged from 1.3 to 10.6 mg/lit, total alkalinity (TA) from 62 to 76mg/lit, free CO2 from 5 to 30 mg/lit and biological oxygen demand (BOD) from 1.2 to 10.2 mg/lit. Although seasonal variation of zooplankton community is largely governed by abiotic factors, but pH exerted considerable influence.

Keywords: Zooplankton, Seasonal variation, Wetland, Abiotic factors

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Patra, S. (2018) “Seasonal Variation of Different Groups of Zooplankton of a Wetland in Relation to Some Abiotic Factors”, International Journal of Advancement in Life Sciences Research, 1(3), pp. 7-14. Available at: https://www.ijalsr.org/index.php/journal/article/view/23 (Accessed: 27June2026).