International Journal of Ecology and Environmental Sciences
Catfish diversity and conservation status in the River Teesta, West Bengal, India
Abstract
A survey on catfish diversity in the River Teesta was done from March 2016 to February 2018. Three sampling sites were selected and sampling was done with different fishing net and then diversity indices calculated with software. A total of 37 catfish belonged to 8 families were recorded. Most dominant family was Sisoridae (38 %) with 14 species then followed by Bagridae (27 %, with ten species), Schilbeidae (11 %, with four species), Siluridae (8%, with three species), Clariidae and Olyridae (5%, with two species) and Heteropneustidae and Chacidae (3%, with one species each). Out of 37 catfish one is Endangered (EN) five species are near threatened (NT) and 28 are least concern (LC). Highest species diversity index and Margalef’s species richness index were recorded in September and lowest in January. Highest evenness index (J’) was recorded in April and lowest in July.
Keywords
References
Acharjee, M.L. & S. Barat (2014). Seasonal dynamics of ichthyodiversity in a hill stream of the Darjeeling Himalaya, West Bengal, India. Journal of Threat¬ened Taxa 6(14): 6635–6648; http://dx.doi.org/10.11609/JoTT.o3404.6635-48
Bruton, Michel N. (1996). Alternative life-history strategies of catfishes. Aquat. Living Resour.9:35-41.
Das, R.K. (2018). Fish diversity and the conservation status of a wetland of Cooch Behar District, West Bengal, India. Journal of Threatened Taxa 10(3):11423–11431; http://doi.org/10.11609/jott.3404.10.3.11423-11431.
Dudgeon, D., A.H. Arthington, M.O. Gessner, Z.I. Kawabata, D.J. Knowler, C. Leveque, R.J. Naiman, A.H. Prieur- Richard, D, Soto, M.L.J. Stiassny & C.A. Sullivan. (2006). Freshwater biodiversity: importance, threats, status and conservation challenges. Biological Review 2006; 81:163-182.
Hammer, A., D. A. T. Harper & P. D. Ryan (2001). Past: Paleontological Statistics Software Package for education and data analysis. Palaeontol. Electron. 4:1–9.
Hora, S.L. & J.C. Gupta (1941). On a collection of fish from Kalimpong, Duars and Siliguri Terai, North Bengal. Journal of Asiatic Society of Bengal 47: 183–202.
Jayaram, K.C. (2009). Catfishes of India. Narendra Publishing House, New Delhi, xxii+383pp.
Jayaram, K.C. (1981). Methods of preservation of fishes, p. 5. In: Director, ZSI (ed.).The Fresh Water Fishes of India, Pakistan, Bangladesh, Burma and Srilanka, A Handbook.Calcutta Laser Graphics (P) Ltd., Calcutta, iii+475pp+13pls.
Jayaram, K.C. & K.P. Singh, (1977). On the collection of fish from North Bengal. Records of Zoological Survey of India 72(1–4): 243–275.
Jayaram, K.C. (2006). Catfishes of India. Narendra Publishing House, New Delhi, xxii+383+11pls.
Kar, D., A.V. Nagarathna, T.V. Ramachandra & S.C. Dey (2006). Fish diversity and conservation aspects of an aquatic ecosystem in northeastern India. Zoos’ Print Journal 21(7): 2308–2315; http://doi. org/10.11609/JoTT.ZPJ.1437a.2308-15
Nelson, Joseph S. (2006). Fishes of the world. John Wiley and Sons, Inc. New York.
Patra, A. M. (2011). Catfish (Teleostei: Siluriformes) diversity in Karala River of Jalpaiguri District, West Bengal, India. Journal of Threatened Taxa 3(3): 1610-1614.
Pielou, E.C. (1975). Ecological Diversity. John Wiley and Sons, New York, NY, 165p.
Sarkar, T. & J. Pal (2008). Studies on the Diversity of Fish in Different Reservoir and Rivers of Terai Region. North Bengal University Journal of Animal Sciences, 2(2): 83-88.
Shannon, C. E. (1948). A mathematical theory of communication. The Bell System Technical Journal, 27:379–423 and 623–656.
Shaw, G.E. & E.O. Shebbeare (1937). The fishes of North Bengal. Journal of the Royal Asiatic Society of Bengal (Science) 3(1): 1–137.
Talwar, P.K. & A.G. Jhingran (1991). Systematic account of Siluriformes fishes, pp. 543–714. In: Inland Fishes of India and Adjacent Countries—Vol. 2.Oxford and IBH Publishing Company, New Delhi, 1158pp.
Refbacks
- There are currently no refbacks.
This work is licensed under a Creative Commons Attribution 3.0 License.
COPYRIGHT of this Journal vests fully with the National Instional Institute of Ecology. Any commercial use of the content on this site in any form is legally prohibited.