Prosperity and Disappearance of Introduced Fishes in Xiangmoshan Reservoir

In order to enhance the resources,some fishes were introduced into Xiangmoshan reservoir.The introduced fishes consisted of different ecotypes such as silver carp (Hypophthalmichthys molitrix (Cuvier et Valenciennes)),big head (Aristichthys nobilis (Richardso)) and lake herring (Coregonus clupeaformis (Mitchill)) that were plankton feeders,common carp (Cyprinus carpio Linnaeus) and crucian carp (Carassius auratus gibelio) belonging to the polyphagia,and also the non-native predator Walleye (Stizostedion vit...