Rotifers (Rotifera: Eurotatoria) from floodplain lakes of the Dibru Saikhowa Biosphere Reserve, upper Assam, northeast India: ecosystem diversity and biogeography
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This study aims to assess ecosystem diversity of Rotifera of the floodplain lakes (beels) of the Brahmaputra river basin with reference to faunal diversity of the taxon in wetlands of conservation areas of India. We observed 141 rotifer species, belonging to 31 genera and 17 families, from three beels of the Dibru-Saikhowa Biosphere Reserve (DSBR) of Assam, northeast India (NEI) with high total richness (117±2 species) in individual beels. One, two and three species are new to the Oriental region, India and Assam state, respectively and 21 species are globally interesting. The diverse Lecanidae > Lepadellidae > Trichocercidae; the paucity and scarceness of Brachionidae and Brachionus spp. in particular; and rare nature of Keratella, Filinia, Asplanchna, Polyarthra, and Conochilus are salient. The monthly richness and community similarities affirmed heterogeneity in species composition in individual beels while this study exhibited overall rotifer homogeneity amongst beels. The richness followed monthly oscillations in the three beels and lacked significant variations amongst beels. The peak richness of 76 species during summer (May, 2014) from No. 11 beel is one of the richest rotifer assemblages known in single date collection from an aquatic ecosystem of South Asia. Our results explained little influence of individual abiotic factors while canonical correspondence analysis endorsed high cumulative influence of 17 abiotic factors on richness in all beels.
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Altındağ A., Segers H., Kaya M. (2009). Some Turkish rotifer species studied using light and scanning electron microscopy. Turkish Journal of Zoology, 33:73-81.
A.P.H.A. (1992). Standard methods for the examination of water and wastewater. 18th Ed., American Public Health Association, Washington D.C. 1198p.
Arora J., Mehra N.K. (2003). Species diversity of planktonic and epiphytic rotifers in the backwaters of the Delhi segment of the Yamuna River, with remarks on new records from India. Zoological Studies, 42(2): 239-247.
Das P., Kar D. (2016). Composition, abundance and diversity of zooplankton population from three different wetlands from Barak valley, Assam. International Journal of Applied and Natural Sciences, 5: 41-46.
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.
Gupta S., Devi S.S. (2014). Ecology of Baskandi anua, an oxbow lake of South Assam, North East India. Journal of Environmental Biology, 35: 1101-1105.
José De Paggi S. (2001). Diversity of Rotifera (Monogononta) in wetlands of Rio Pilcomayo national park, Ramsar site (Formosa, Argentina). Hydrobiologia, 462: 25-34.
Kar S., Kar D. (2013). Studies on zooplankton diversity of an oxbow lake of South Assam, India. International Journal of Current Research, 5: 3652-3655.
Kar S., Kar D. (2016). Zooplankton diversity of a freshwater wetland of Assam. International Journal of Advanced Biotechnology and Research, 7: 614-620.
Khan R.A. (2003). Faunal diversity of zooplankton in freshwater wetlands of Southeastern West Bengal. Records of the Zoological Survey of India, Occasional Paper No., 204: 1-107.
Kobayashi T., Shiel R.J., Segers H. (2007). First record of the rotifer Lecane shieli Segers & Sanoamuang, 1994 from Australia. Australian Zoologist, 34: 181-183.
Koste W. (1978). Rotatoria. Die Rädertiere Mitteleuropas, begrí¼ndet von Max Voigt. íœberordnung Monogononta. Gebrí¼der Borntaeger, Berlin, Stuttgart. I. 673 p.
Pociecha A., Solarz W., Najberek K., Wilk-Woźniak E. (2016). Native, alien, cosmopolitan, or cryptogenic? A framework for clarifying the origin status of rotifers. Aquatic Biology, 24(3): 141-149.
Sa-Ardrit P., Pholpunthin P., Segers H. (2013). A checklist of the freshwater rotifer fauna of Thailand (Rotifera, Monogononta, Bdelloidea). Journal of Limnology, 72: 361-375.
Sanoamuang L., Savatenalinton S. (2001). The rotifer fauna of Lake Kud-Thing, a shallow lake in Nong Khai Province, northeast Thailand. Hydrobiologia, 446/447: 297-304.
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. (2007). Annotated checklist of the rotifers (Phylum Rotifera), with notes on nomenclature, taxonomy and distribution. Zootaxa, 1564: 1-104.
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.
Segers H., Sanoamuang L. (1994). Two more new species of Lecane (Rotifera: Monogononta), from Thailand. Belgian Journal of Zoology, 124: 39-46.
Segers H., Sanoamuang L. (2007). Note on a highly diverse Rotifer assemblage (Rotifera: Monogononta) in a Laotian rice paddy and adjacent pond. Internationale Revue Hydrobiologie, 92: 640-646.
Segers H., Savatenalinton S. (2010). A critical re-revaluation of the Lecanidae (Rotifera: Monogononta) of Thailand, with description of a new species. Internationale Revue Hydrobiologie, 95: 343-351.
Sharma B.K. (1998). Freshwater Rotifers (Rotifera: Eurotatoria). In: Fauna of West Bengal. State Fauna Series, 3(11): 341-461. Zoological Survey of India, Calcutta.
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. (2009). Richness, Abundance and Ecology of Rotifera of Loktak Lake (a Ramsar site), Manipur, Northeastern India. Ecology, Environment and Conservation, 15(2): 299-306.
Sharma B.K. (2014). Rotifers (Rotifera: Eurotatoria) from wetlands of Majuli - the largest river island, the Brahmaputra river basin of upper Assam, northeast India. Check List, 10(2): 292–298.
Sharma B. K., Haokip T. P., Sharma S. (2016). Loktak Lake, Manipur, northeast India: a Ramsar site with rich rotifer (Rotifera: Eurotatoria) diversity and its meta-analysis. International Journal of Aquatic Biology, 4(2): 69-79.
Sharma B.K., Khan S.I., Sharma S. (2017). Biodiverse rotifer assemblage (Rotifera: Eurotatoria) of floodplain lakes of the Brahmaputra basin of lower Assam, northeast India: composition and ecosystem diversity. Chinese Journal of Oceanology and Limnology, DOI:10.1007/s00343-017-6251-x
Sharma B.K, Sharma S. (2001). Biodiversity of Rotifera in some tropical floodplain lakes of the Brahmaputra river basin, Assam (N.E. India). Hydrobiologia, 446/447: 305-313.
Sharma B.K, Sharma S. (2011). Faunal diversity of Rotifers (Rotifera, Eurotatoria) of Nokrek Biosphere Reserve, Meghalaya, India. Journal of Threatened Taxa, 3: 1535-1541.
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. (2014c). Indian Lecanidae (Rotifera: Eurotatoria: Monogononta) and its distribution. 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): 38-47.
Sharma B.K., Sharma S. (2015a). New records of rotifers (Rotifera: Eurotatoria) from Deepor beel- a Ramsar site of India with an update on its Rotifera diversity. Journal of Threatened Taxa, 7: 7011-7016.
Sharma B.K., Sharma S. (2015b). 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. Zoological Survey of India, Kolkata.
Sladecek V. (1983). Rotifera as indicators of water quality. Hydrobiologia, 100: 169-201.
Talling J.F., Talling I.B. (1965). The chemical composition of African lake waters. International Review Gesamten Hydrobiology, 50: 421-463.
