Caused the disappearance of native genus Schizothorax from waters to which it has been introduced. Found in Kashmir Valley (Ref. 33323), Western Ghats (Ref. 40976), ponds and lakes of Nilgiris, Periyar Lake, Chalakkudy river system, Chimmony and Peechi-Vazhani WLS, Nilgiri Biosphere Reserve, Southern Keral River systes, Achenkoil River and Bangalore and Kolar districts, Karnataka (Ref. 92228), Maharashtra (Ref. 43634); Pykara dam and River and Kamaraj sagar, Ooty, Tamil Nadu (Ref. 44148). Introduced to India in 1939 (Ref. 43640). Present in Naninital, Bhimtal and Naukuchiatal lakes (Ref. 89721), also in Adma and Jayanti rivers (Ref. 89719). Also Ref. 1739, 6092, 45208.