Reassessment of zooplankton diversity of Lake Gyekar Syinik of Itanagar, Arunachal Pradesh, India

An assessment of the distribution of zooplankton in Lake Geykar Sinyik was carried during 2019 and reported 16 genera. The same wetland was again surveyed throughout the year 2024 where 16 number of genera with 25 species of zooplankton were recorded. 11 genera were found to be common when compared with both the year. There were four groups of zooplankton like copepoda, cladocera, rotifera and protozoa observed. The group rotifera represented with maximum number (13) of species. The distribution trends were Rotifera>Copepoda>Cladocera=Protozoa. Genus Trichocerca and Asplancha were dominant with three species each. Physio-chemical parameters of water indicating low oxygen level along with negative oxidation reduction potential.