Nutrition of amur sleeper Perccottus glenii (Perciformes: Odontobutidae) in floodplain waters of the Saratov reservoir

Perccottus glenii has penetrated to the lakes of the floodplain of the Saratov reservoir over 20 years ago. Rotan is considered a predator of the highest order. The food investigated in Amur sleeper in the period from 2007-2012. Observations have shown that the Amur sleeper was consumed by the organisms of the 48 taxa in Mordovskoi the floodplain of the Saratov reservoir. Insects and their own juveniles formed the basis of food. Juveniles of other fish species were very rare. Fish eggs, tadpoles are not marked in food.