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Diversity of Zooplankton and their Seasonal Variations of Gogi Lake, Shahapur taluk, Yadgir district, Karnataka, India

Author Affiliations

  • 1Centre for Ecological Economics and Natural Resources (CEENR), Institute for Social and Economic Change, 560 072, Bangalore, Karnataka, INDIA
  • 2Centre for Ecological Economics and Natural Resources (CEENR), Institute for Social and Economic Change, 560 072, Bangalore, Karnataka, INDIA
  • 3Centre for Ecological Economics and Natural Resources (CEENR), Institute for Social and Economic Change, 560 072, Bangalore, Karnataka, INDIA
  • 4Centre for Ecological Economics and Natural Resources (CEENR), Institute for Social and Economic Change, 560 072, Bangalore, Karnataka, INDIA
  • 5Centre for Ecological Economics and Natural Resources (CEENR), Institute for Social and Economic Change, 560 072, Bangalore, Karnataka, INDIA

Int. Res. J. Environment Sci., Volume 5, Issue (1), Pages 32-38, January,22 (2016)


Zooplanktons are microscopic organisms that have a criticcal role in aquatic ecosystems. Zooplanktons are indicators of water quality and purity of aquatic ecosystems. The present study was carried out to study the species diversity and their seasonal changes in fresh water lake ecosystem located in semi-arid region of Karnataka. The study was conducted across the seasons of the year 2012. A standard methodology was followed during this study and the samples were collected during various seasons from the studied aquatic ecosystem. We recorded a total of 22 species of zooplanktons during the study period. Phylum Rotifers comprises 15 species, Cladocera 3, Copepoda 3 and Ostrocoda 1 species. A season wise analysis shows the maximum number of species during summer and the minimum number of species in rainy season. Species density was recorded high during summer season as compared to rainy season. The lake is shelter to many migrating bird species, fishes, aquatic plants and other insects. The lake is surrounded by human settlements and is prone to pollution due to several activities viz. washing clothes, bathing animals, dumping domestic waste and other similar activities. In this regard, urgent actions are required to conserve the aquatic biodiversity of this lake.


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