Location Specific Impacts:
Lake Donghu (China)
Reduction in native biodiversity: In Asia, one of the worst DOCumented negative effects on fish biodiversity has resulted from within country translocations, for example in Donghu Lake, Wuhan, China when the introduction of grass carp resulted in the decimation of submerged macrophytes and the consequent ecological changes brought about an upsurge of Hypophthalmichthys spp. (Aristichthys nobilis) and silver carps (Hypophthalmichthys molitrix) and also the disappearance of most of the 60 fish species native to the lake (Chen, 1989) (Nguyen and Nakorn, 2004).
Govind Sagar Reservoir (India)
Reduction in native biodiversity: The silver carp, H. molitrix was introduced to India in 1959. It was accidentally introduced into the Govind Sagar reservoir where it drastically reduced the populations of the native Catla catla and Tor putitora (Sethi et al UNDATED).
Reduction in native biodiversity: Exotic fish such as carp have been migrated into river systems and reservoirs of Nepal since their introduction in the rice paddies fish culture system. It is feared that in long run exotic may replace indigenous species such as golden mahseer, deep-bodied mahseer and many other endemic species (Shrestha, UNDATED).