Loktak Lake, Manipur, northeast India: a Ramsar site with rich rotifer (Rotifera: Eurotatoria) diversity and its meta-analysis

Bhushan Kumar Sharma, Telsing Paongam Haokip, Sumita Sharma


A total of 162 species (S) of Rotifera belonging to 40 genera and 20 families examined from Loktak Lake, an important floodplain lake of northeast India (NEI) that is one of the richest assemblages of the taxon known from the Indian sub-region. It merits biodiversity value as ~40.0% and ~62.0% of species recorded from India and NEI, respectively. One species is new to India, 23 species are new to Manipur and 14 species are new to Loktak basin. Biogeographically interesting elements included three Australasian, five Oriental, ten palaeotropical and one cosmo-subtropical species. Lecanidae > Lepadellidae > Brachionidae > Trichocercidae collectively comprised 65.4% of S; Lecane > Lepadella > Trichocerca are diverse genera; and paucity of Brachionus spp. is distinct. Loktak Rotifera indicated importance of cosmopolitan, the littoral-periphytonic and small-sized species, and ‘tropical character’. ANOVA recorded significant variations of the rotifer richness amongst three sampling sites of Loktak during June 2010–May 2012 survey. The richness followed osscillaring monthly variations and indicated lack of significant influence of any individual abioitic parameter at all three stations.


Composition, Distribution, Interesting species, New records, Richness ,Wetland.

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A.P.H.A. (1992). Standard methods for the examination of water and wastewater. 18th Ed., American Public Health Association, Washington D.C. 1198 p.

Baumgartner G., Nakataki K., Cavicchiolo M., Baugartner M.S. (1997). Some aspects of the ecology of fish larvae in the floodplain of the high Parana river, Brazil. Review Brazilian Zoology, 14: 551-563.

Bonecker C.C., Lansac-Tôha F.A., Staub A. (1994). Qualitative study of Rotifers in different environments of the high Parana River floodplain (Ms), Brazil. Revista UNIMAR, 16(1): 1-16.

Bonecker C.C., Lansac-Tôha, F.A., Rossa D.C. (1998). Planktonic and non-planktonic rotifers in two environments of the upper Parana River floodplain, state of Mato Grosso do Sul, Brazil. Brazilian Archives of Biology and Technology, 41: 447-456.

De Manuel J. (1994). Taxonomic and zoogeographic considerations on Lecanidae (Rotifera: Monogononta) of the Balearic archipelago, with description of a new species, Lecane margalefi n. sp. Hydrobiologia, 288: 97-105.

Dumont H.J., Segers H. (1996). Estimating lacustrine zooplankton species richness and complementarity. Hydrobiologia, 341: 125-132.

Dussart B.H., Fernando C.H., Matsumura-Tundisi J., Shiel R.J. (1984). A review of systematics, distribution and ecology of tropical freshwater zooplankton. Hydrobiologia, 113: 77-91.

Fernando C.H. (1980). The freshwater zooplankton of Sri Lanka, with a discussion of tropical freshwater zooplankton composition. Internationale Revue Hydrobiologie, 65: 411-426.

Fontaneto D., Márcia Barbosa, A., Segers H., Pautasso M. (2012). The ‘rotiferologist’ effect and the other global correlates of species richness in rotifers. Ecography, 35: 174-182.

Green J. (1972). Latitudinal variation in associations of planktonic Rotifera. Journal of Zoology, London, 167: 31-39.

Green J. (2003). Associations of planktonic and periphytic rotifers in a tropical swamp, the Okavango Delta, Southern Africa. Hydrobiologia, 490: 197-209.

José De Paggi S. (1993). Composition and seasonality of planktonic rotifers in limnetic and littoral region of a floodplain lake (Parana River System). Revue Hydrobiologie Tropicale, 26: 53-64.

José De Paggi S. (2001). Diversity of Rotifera (Monogononta) in wetlands of Rio Pilcomayo national park, Ramsar site (Formosa, Argentina). Hydrobiologia, 462: 25-34.

Koste W. (1978). Rotatoria. Die Rädertiere Mitteleuropas, begründet von Max Voigt. Überordnung Monogononta. Gebrüder Borntaeger, Berlin, Stuttgart. I. 673 p.

Pejler B. (1977). On the global distribution of the family Brachionidae (Rotatoria). Archiv für Hydrobiology, supplement, 53: 255-306.

Sanoamuang L. (1998). Rotifera of some freshwater habitats in the floodplains of the River Nan, northern Thailand. Hydrobiologia, 387/388: 27-33.

Segers H. (1995). Rotifera 2: Lecanidae. 6. In: H.J. Dumont, T. Nogrady (Eds.). Guides to identification of the Microinvertebrates .of the Continental waters of the world. SPB Academic Publishing bv. Amsterdam, the Netherlands. pp: 1-226.

Segers H. (1996). The biogeography of littoral Lecane Rotifera. Hydrobiologia, 323: 169-197.

Segers H. (2001). Zoogeography of the Southeast Asian Rotifera. Hydrobiologia, 446/447: 233-246.

Segers H. (2007). Annotated checklist of the rotifers (Phylum Rotifera), with notes on nomenclature, taxonomy and distribution. Zootaxa, 1564: 1-104.

Segers H., Dumont H.J. (1995). 102+ rotifer species (Rotifera: Monogononta) in Broa reservoir (SP., Brazil) on 26 August 1994, with the description of three new species. Hydrobiologia, 316: 183-197.

Segers H., Ferrufino N.L., De Meester L. (1998). Diversity and Zoogeography of Rotifera (Monogononta) in a flood plain lake of the Ichilo River, Bolivia, with notes on little known species. Internationale Revue Hydrobiologie, 83(5-6): 439-448.

Segers H., Nwadiaro C.S., Dumont H.J. (1993). Rotifera of some lakes in the floodplain of the river Niger (Imo State, Nigeria). II. Faunal composition and diversity. Hydrobiologia, 250: 63-71.

Segers H., Pholpunthin P. (1997). New and rare Rotifera from Thale Noi Lake, Pattalang Province, Thailand, with a note on the taxonomy of Cephalodella (Notommatidae). Annals Limnologie, 33(1): 13-21.

Sharma B.K. (1983). The Indian species of the genus Brachionus (Eurotatoria: Monogononta: Brachionidae). Hydrobiologia, 104: 31-39.

Sharma B.K. (1996). Biodiversity of freshwater Rotifera in India - a status report. Proceedings of the Zoological Society, Calcutta 49: 73-85.

Sharma B.K. (1998a). Freshwater Rotifers (Rotifera: Eurotatoria). In: Fauna of West Bengal. State Fauna Series, 3(11): 341-461.

Sharma B.K. (1998b). Faunal Diversity in India: Rotifera. In: J.R.B. Alfred, A.K. Das, A.K. Sanyal (eds.). Faunal diversity of India. ENVIS Centre, Zoological Survey of India, Calcutta, pp. 57-70.

Sharma B.K. (2005). Rotifer communities of floodplain lakes of the Brahmaputra basin of lower Assam (N.E. India): biodiversity, distribution and ecology. Hydrobiologia, 533: 209-221.

Sharma B.K. (2007). Notes on rare and interesting Rotifers (Rotifera: Eurotatoria) from Loktak lake, Manipur – A Ramsar site. Zoo’s Print, 22(9): 2816–2820.

Sharma B.K. (2009a). Diversity of Rotifers (Rotifera: Eurotatoria) of Loktak lake, North- Eastern India. Tropical Ecology, 50(2): 277-285.

Sharma B.K. (2009b). Rotifer communities of floodplain lakes of Manipur (North-East India): biodiversity, distribution and ecology. Journal of Bombay Natural History Society, 106(1): 45-56.

Sharma B.K., Sharma S. (1997). Lecanid rotifers (Rotifera: Monogononta: Lecanidae) from North Eastern India. Hydrobiologia, 356: 159-163.

Sharma B.K., Sharma S. (1999). Freshwater Rotifers (Rotifera: Eurotatoria). In: Fauna of Meghalaya. State Fauna Series, 4(9): 11-161.

Sharma B.K., Sharma S. (2000). Freshwater Rotifers (Rotifera: Eurotatoria). In: Fauna of Tripura: State Fauna Series. Zoological Survey of India, Calcutta, 7 (4): 163-224.

Sharma B.K., Sharma S. (2014a). Northeast India - An important region with a rich biodiversity of Rotifera. In: B.K. Sharma, H.J. Dumont, R.L. Wallace (Ed.). Rotifera XIII: Rotifer Biology- A structural and functional Approach. International Review of Hydrobiology, 99(1-2): 20-37.

Sharma B.K., Sharma S. (2014b). Floodplains of the Brahmaputra river basin-globally interesting ecotones with rich Rotifer (Rotifera: Eurotatoria) biodiversity. In: R.K. Sinha, B. Ahmed (Eds.). Rivers for Life - Proceedings of the International Symposium on River Biodiversity: Ganges–Brahmaputra-Meghna River System, Ecosystems for Life, A Bangladesh-India Initiative, IUCN, International Union for Conservation of Nature, pp. 258-270.

Sharma B.K., Sharma S. (2015). Biodiversity of freshwater rotifers (Rotifera: Eurotatoria) of Mizoram, Northeast India: composition, new records and interesting features. International Journal of Aquatic Biology, 3(5): 301-313.

Sharma B.K., Sharma S., Hatimuria M.K. (2015). Rotifer assemblages (Rotifera: Eurotatoria) of the floodplain lakes of Majuli River Island, the Brahmaputra river basin, northeast India. International Journal of Aquatic Biology, 3(1):1-13.

Sharma S., Sharma B.K. (2008). Zooplankton diversity in floodplain lakes of Assam. Records of the Zoological Survey of India, Occasional Paper No. 290: 1-307.

Sharma S., Sharma B.K. (2013). Faunal Diversity of Aquatic Invertebrates of Deepor Beel (a Ramsar site), Assam, northeast India. Wetland Ecosystem Series, 17: 1-226.

Shiel R.J., Green, J.D., Nielsen, D.L. (1998). Floodplain biodiversity: why are there so many species? Hydrobiologia, 387/388: 39-46.

Sørensen T. (1948). A method of establishing group of equal amplitude in plant sociology based on similarity of species content and its application to analyze the vegetation of Danish commons. Biologiske Skrifter, 5: 1-34.

Talling J.F., Talling I.B. (1965). The chemical composition of African lake waters. Internationale Revue der Gesamten Hydrobiologie, 50: 421-463.


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