Southern Deccan Plateau




J. Hales



Major Habitat Type

Tropical and subtropical floodplain rivers and wetland complexes

Drainages flowing into

Bay of Bengal, Indian Ocean

Main rivers to other water bodies

Krishna River, Penner River



This ecoregion includes the Krishna basin and smaller adjacent basins north of Pulicat Lake.

Description of endemic fishes

No recorded endemics

Justification for delineation

For Southeast Asia, delineations were determined using a bottom-up approach that employed both published and unpublished field data and expert assessment (Abell et al. 2008; Talwar & Jhingran 1991). This ecoregion was distinguished from other ecoregions in peninsular India based on basins, and needs to be tested with reliable data (M. Kottelat pers. comm. 2006).

Level of taxonomic exploration

Although there is a plethora of small papers on fish distribution in India, there is no synthesis of fish distribution in the country outside of the Ganges basin (M. Kottelat pers. comm. 2006).


  • Abell, Robin,M.L. Thieme,C. Revenga,M. Bryer,M. Kottelat,N. Bogutskaya,B. Coad,N. Mandrak,S.C. Balderas,W. Bussing,M.L.J. Stiassny,P. Skelton,G.R. Allen,P. Unmack,A. Naseka,R. Ng,N. Sindorf,J. Robertson,E. Armijo,J.V. Higgins,T.J. Heibel,E. Wikramanayake, (2008). "Freshwater Ecoregions of the World: A New Map of Biogeographic Units for Freshwater Biodiversity Conservation" BioScience 58 (5) pp. 403-414.
  • Talwar, P. K. and A. G. Jhingran (1991). "Inland fishes of India and adjacent countries. Vol. I and II" Rotterdam, The Netherlands: A. A. Balkema.