Rotifer Biodiversity of Gyakar Sinyik - a natural mountain lake amidst Itanagar Wildlife Sanctuary

A study was undertaken to document the diversity of Rotifera in Ganga Lake, Itanagar as no such information was available. Plankton samples were collected quarterly during 2018-19 using a Nylobolt plankton net and Rotifera taxa were identified with the help of standard literature. The present study recorded 16 species of Rotifera belonging to 10 genera and 7 families from Ganga lake- the first ever detail study on Rotifera from any kind of biotopes in the Himalayan state of Arunachal Pradesh. The rotifer diversity of Ganga Lake is dominated by the tropic-centred family Brachionidae with 5 species under 4 genera. The Laurasian origin genera Trichocerca was found to be the most dominant genera with 5 species. This study also added 3 more taxa (Keratella quadrata, Trichocerca longiseta and Filinia terminalis) to the rotifer fauna of Arunachal Pradesh while confirming the occurrence of 9 earlier rotifer species.

@article{bikramjit2026,
  author  = {Bikramjit Sinha*},
  title   = {{Rotifer Biodiversity of Gyakar Sinyik - a natural mountain lake amidst Itanagar Wildlife Sanctuary}},
  journal = {Journal of Bioresearch},
  year    = {2026},
  volume  = {2},
  number  = {2},
  doi     = {https://doi.org/10.56716/4/1458},
}