ichthyofauna

1.Its compositional ichthyofauna differs from its consecuting fiver systems,and has momentous significance on succession of fishes and ichthyofauna dividatur in watershed of North China.

在鱼类系组成上，它与相邻的有着很大的差异，在我国北方鱼类演替和系划分上有着重要的意义。