Conservation breeding of Northern River Terrapin Batagur baska (Gray, 1830) in Sundarban Tiger Reserve, India

Main Article Content

Nillanjan Mallick
Shailendra Singh
Dibyadeep Chatterjee
https://orcid.org/0000-0001-6846-3149
Souritra Sharma
https://orcid.org/0000-0002-3343-5436

Abstract

The population of Northern River Terrapin Batagur baska is ‘Critically Endangered’ and threatened with extinction.  In India, the species was once known to occur in the mangroves of West Bengal and Odisha.  The sub-population in Odisha is suspected to have been wiped out.  The Sundarban Tiger Reserve and the Turtle Survival Alliance launched a modest conservation breeding program in 2012 to recover the species using a small number of adults as founders.  Gravid adult females are kept in a dedicated breeding enclosure with minimal disturbance, eggs are incubated outdoor on an artificial nesting beach, and hatchlings are raised to develop assurance colonies for purposes of reintroduction in future.  Currently, the project holds 12 adults and over 350 juveniles of various size classes.  Three additional assurance colonies were developed for 70 sub-adults from 2012–13 batches, using rain-fed ponds within STR. 

Article Details

Section
Communications

References

Asian Turtle Trade Working Group (2000). Pangshura tecta (Gray, 1830). The IUCN Red List of Threatened Species 2000: https://doi.org/10.2305/IUCN.UK.2000

Bhupathy, S. (1995). Status and distribution of the River Terrapin Batagur baska in Sundarbans of India. Final Project Report, Salim Ali Centre for Ornithology and Natural History, Coimbatore, India, 37pp.

Das, I. (1985). Indian Turtles: A Field Guide. World Wildlife Fund-India, Eastern Region, Calcutta, 119pp.

Ghosh, A. & N.R. Mandal (1990). Studies on nesting and artificial hatching of the endangered river terrapin Batagur baska (Gray) in the Sundarbans Tiger Reserve, West Bengal. Journal of the Bombay Natural History Society 87: 50–52

Gunther, A.C.L.G. (1864). The Reptiles of British India. Robert Hardwicke, London, 452pp.

Mishra, Ch.G., S.K. Patnaik, S.K. Sinha, S.K. Kar. C.S. Kar & L.A.K. Singh (1996). Wildlife Wealth of Orissa. Govt. of Orissa, Forest Department, Wildlife Wing, 185pp.

Mital, A., B. Tao & A. Das (2019). Manouria impressa (Impressed Tortoise)- Geographic distribution. Herpetological Review 50: 2019.

Moll, E.O., K. Platt, S.G. Platt, P. Praschag & P.P. Van Dijk (2009). Batagur baska (Gray 1830)-northern river terrapin. In: Rhodin, A.G.J., P.C.H. Pritchard, P.P. van Dijk, R.A. Saumure, K.A. Buhlmannn, J.B. Iverson & R.A. Mittermeier (eds.). Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group. Chelonian Research Monographs No. 5: 037.1–037.10. http://doi.org/10.3854/crm.5.037.baska.v1.2009

Pandit, P.K. (2013). Captive Breeding of Batagur baska -A Critically Endangered Species In Sundarban Tiger Reserve, West Bengal, India; Vol. 40: No. 4 October-December 2013; Tiger Paper; Regional Quarterly Bulletin On Wildlife And National Parks Management.

Praschag, P., Hundsdörfer, A.K. & Fritz, U. (2007) Phylogeny and taxonomy of endangered South and South-east Asian freshwater turtles elucidated by mtDNA sequence variation (Testudines: Geoemydidae: Batagur, Callagur, Hardella, Kachuga, Pangshura). Zoologica Scripta 36: 429–442.

Praschag, P., R. Ghose & F. Willinger (2008a). Field survey for the river terrapin (Batagur baska) in East India And Bangladesh. TSA, Turtle Survival Alliance Newsletter, August, 30pp.

Praschag, P., Sommer, R.S., McCarthy, C., Gemel, R. & Fritz, U. (2008b) Naming one of the world’s rarest chelonians, the southern Batagur. Zootaxa, 1758: 61–68: https://doi.org/10.11646/zootaxa.1758.1.4

Praschag, P., R. Holloway, A. Georges, M. Päckert, A.K. Hundsdörfer & U. Fritz (2009): A new subspecies of Batagur affinis (Cantor, 1847), one of the world’s most critically endangered chelonians (Testudines: Geoemydidae). Zootaxa 2233: 57–68. https://doi.org/10.11646/zootaxa.2233.1.3

Praschag, P. & S. Singh (2019). Batagur baska. The IUCN Red List of Threatened Species 2019: e.T97358453A2788691: https://doi.org/10.2305/IUCN.UK.20191.RLTS.T97358453A2788691.en

Singh, S. & B.K. Saha (2008). Impression report on a visit to assess the resources and potentials to conserve the River Terrapin; Batagur baska in the Sundarbans. Unpublished Report submitted to the Principal Chief Conservator of Forests (Wildlife) and the Chief Wildlife Warden, Government of West Bengal, 6pp.

Singh, S. (2013). TSA India: Committed to Securing the Future of Indian Turtles. TSA, Turtle Survival Magazine, August, 34–38pp.

Singh, S., S. Sirsi & L. McCaskill (2014). A Year of Steady Progress for Turtles and TSA India. TSA, Turtle Survival Magazine, August, 40–44pp.

Turtle Conservation Coalition (2018). Turtles in Trouble: The World’s 25+ Most Endangered Tortoises and Freshwater Turtles—2018. IUCN SSC Tortoise and Freshwater Turtle Specialist Group, Turtle Conservancy, Turtle Survival Alliance, Turtle Conservation Fund, Chelonian Research Foundation, Conservation International, Wildlife Conservation Society, and Global Wildlife Conservation, 80pp.

Weissenbacher, A., D. Preininger, R. Ghosh, A. Morshed & P. Praschag (2015). Conservation breeding of the Northern river terrapin Batagur baska at the Vienna Zoo, Austria, and in Bangladesh: Vienna Zoo & Bangladesh: Northern River Terrapin Conservation. International Zoo Yearbook No: 49. https://doi.org/10.1111/izy.12070