Zooplankton Diversity of a Sub-Tropical Small Urban Wetland of Meghalaya, Northeast India with Remarks on Spatial Variations
| Autor: | Bhushan Kumar Sharma, Sumita Sharma -Select |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Abiotic component
abundance habitat diversity Limnoloji Ecology diversity indices Species diversity trophic status SH1-691 Zooplankton salient features Spatial heterogeneity Diversity index Geography Abundance (ecology) Abundance diversity indices habitat diversity salient features trophic status Limnology Littoral zone Aquaculture. Fisheries. Angling Species richness General Economics Econometrics and Finance |
| Zdroj: | Volume: 7, Issue: 1 24-39 Journal of Limnology and Freshwater Fisheries Research Journal of Limnology and Freshwater Fisheries Research, Vol 7, Iss 1, Pp 24-39 (2021) |
| ISSN: | 2149-4428 |
| Popis: | Limnological survey of a small urban wetland of Meghalaya state of northeast India (NEI), undertaken at the littoral and semi-limnetic stations, reveals one of the biodiverse zooplankton assemblages (148 species belonging to 72 genera and 30 families) known from any lentic environ of the Indian sub-region. The speciose nature, peak constellation/sample of 83 zooplankton species, and diverse Rotifera (90 species) are hypothesized to environmental heterogeneity of this urban wetland in contrast to the general pattern of reduced richness expected in highly modified urban aquatic environments. The soft and de-mineralized waters are characterized by low zooplankton abundance. This study records high species diversity and evenness, and low dominance attributed to low and equitable abundance depicts ‘generalist’ nature of all species. Rotifera > Cladocera and Chydoridae > Lecanidae > Lepadellidae > Daphniidae are important at both stations, and Testudinellidae, Trichocercidae, and Macrothricidae are notable at the littoral station. Individual abiotic factors exert limited and differential spatial influence on various taxa, while the CCA registers a high cumulative influence of 10 abiotic factors on the littoral (87.37%) and semi-limnetic (75.81%) zooplankton assemblages. The spatial variations of composition, richness, similarities, abundance, diversity indices, and of the influence of individual abiotic factors are hypothesized to habitat heterogeneity amongst the sampled stations. |
| Databáze: | OpenAIRE |
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