Biodiverse rotifer assemblage (Rotifera: Eurotatoria) of floodplain lakes of the Brahmaputra basin of lower Assam, northeast India: composition and ecosystem diversity

Kumar SHARMA Bhushan; Islam KHAN Shaikhul; SHARMA Sumita

doi:10.1007/s00343-017-6251-x

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Biodiverse rotifer assemblage (Rotifera: Eurotatoria) of floodplain lakes of the Brahmaputra basin of lower Assam, northeast India: composition and ecosystem diversity

Ecology | Updated：2023-05-19

- Biodiverse rotifer assemblage (Rotifera: Eurotatoria) of floodplain lakes of the Brahmaputra basin of lower Assam, northeast India: composition and ecosystem diversity
- Biodiverse rotifer assemblage (Rotifera: Eurotatoria) of floodplain lakes of the Brahmaputra basin of lower Assam, northeast India: composition and ecosystem diversity
- 海洋湖沼学报（英文） 2018年36卷第2期页码：362-375
- Affiliations：
  
  Freshwater Biology Laboratory, Department of Zoology, North-Eastern Hill University, Shillong-793 022, Meghalaya, India
- Author bio：
  
  Bhushan Kumar SHARMA, profbksharma@gmail.com
- Funds：
- DOI：10.1007/s00343-017-6251-x
  中图分类号：
- 收稿：2016-09-27，
  
  录用：2016-11-20，
  
  网络首发：2018-12-15，
  
  纸质出版：2018-02
- Accepted：
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Biodiverse rotifer assemblage (Rotifera: Eurotatoria) of floodplain lakes of the Brahmaputra basin of lower Assam, northeast India: composition and ecosystem diversity[J]. 海洋湖沼学报（英文）, 2018,36(2):362-375.

Kumar SHARMA Bhushan, Islam KHAN Shaikhul, SHARMA Sumita. Biodiverse rotifer assemblage (Rotifera: Eurotatoria) of floodplain lakes of the Brahmaputra basin of lower Assam, northeast India: composition and ecosystem diversity[J]. Chinese Journal of Oceanology and Limnology, 2018, 36(2): 362-375.
Biodiverse rotifer assemblage (Rotifera: Eurotatoria) of floodplain lakes of the Brahmaputra basin of lower Assam, northeast India: composition and ecosystem diversity[J]. 海洋湖沼学报（英文）, 2018,36(2):362-375. DOI： 10.1007/s00343-017-6251-x.

Kumar SHARMA Bhushan, Islam KHAN Shaikhul, SHARMA Sumita. Biodiverse rotifer assemblage (Rotifera: Eurotatoria) of floodplain lakes of the Brahmaputra basin of lower Assam, northeast India: composition and ecosystem diversity[J]. Chinese Journal of Oceanology and Limnology, 2018, 36(2): 362-375. DOI： 10.1007/s00343-017-6251-x.

摘要

Abstract

The study aims to ascertain the hypothesis on the rich rotifer biodiversity of the floodplain lakes (beels) of the Brahmaputra river basin and to use these metazoans to assess trophic status or to characterize habitat variations of wetlands. The plankton samples collected from four beels of lower Assam revealed 160 Rotifera species belonging to 35 genera and 19 families. The richness is of biodiversity value as~38.0% and~57.0% of the rotifer species known till date from India and northeast India (NEI)

respectively. One species each is new to the Oriental region and NEI

and three species are new to Assam; 23 species merit global biogeography interest and several exhibit distribution values in the Indian sub-region. The diverse Lecanidae

Brachionidae

Lepadellidae

Trichocercidae and speciose littoral-periphytic

Lecane

Lepadella

Trichocerca

and richness of

Brachionus

spp. following removal of aquatic macrophytes are noteworthy. Overall rotifer composition showed homogeneity amongst beels while lower monthly richness and community similarities affirmed heterogeneity within individual beels. We propose L/B quotient based on

Lecane:Brachionus

species ratios to characterize habitat variations of the sampled wetlands. Sládeček's B/T quotient based on

Brachionus:Trichocerca

species ratios affirmed general nmeso-trophico status of different beels. Our results provided little insight on the influence of individual abiotic factors but the canonical correspondence analyses asserted higher cumulative influence of ten abiotic parameters on Rotifera richness in each beel.

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Keywords

references

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