The first find of Amur sleeper Perccottus glenii Dybowski, 1877 (Odontobutidae, Pisces) in the basin of the middle Yenisei

The information about the first find of Amur sleeper P erccottus glenii Dybowski, 1877 in reservoir from Middle Yenisei basin is given . Detection of fish of different ages, including juveniles, indicates a successful naturalization of species in considered pond. Estimated period of sleeper’s penetration – from 2005 to 2011.