Western Taiwan




J. Hales



Major Habitat Type

Tropical and subtropical coastal rivers

Drainages flowing into

East China Sea, Taiwan Strait, and South China Sea

Main rivers to other water bodies

Tamshui, Touchien, Tachia, Zhuoshui, Tsengwen, and Kaoping rivers



This ecoregion includes the basins on the island of Taiwan that drain west of the Chungyang Range into the East China Sea, Taiwan Strait, and South China Sea. It includes the Penghu Islands.

Terrestrial habitats

The terrestrial ecoregions include the Taiwan subtropical evergreen forests [IM0172] and South Taiwan monsoon rain forests [IM0171] at the southern end of the island (Wikramanayake et al. 2002).

Description of endemic fishes

Nearly a quarter of the described species are endemic, including the endemic genera Pararasbora and Candidia

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For Southeast Asia, delineations were determined using a bottom-up approach that employed both published and unpublished field data and expert assessment (Abell et al. 2008). The ecoregion’s delineation follows Chen and Fang (1999). It includes around 17 described endemic species and the endemic genera Pararasbora and Candidia.


  • 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.
  • Chen, I. Shiung;Fang, Lee-Shing (1999). "The freshwater and estuarine fishes of Taiwan" Pingtung, Taiwan: National Museum of Marine Biology and Aquarium.
  • Wikramanayake, Eric,Dinerstein, Eric,Loucks, C.,Olson, D.M.,Morrison, J.,Lamoreux, J. L.,McKnight, M.;Hedao, P. (2002). "Terrestrial ecoregions of the Indo-Pacific: A conservation assessment" Washington, DC: Island Press.