Ducks, cranes and other aquatic birds abound in the delta.
Tadpoles are aquatic vertebrates.
Numberless aquatic birds visit it for breeding purposes.
The Amphizoidae, for example, a small family of aquatic beetles, are known only from western North America and Eastern Tibet, while an allied family, the Pelobiidae, inhabit the British Isles, the Mediterranean region, Tibet and Australia.
Insectivorous species occur among aquatic plants; e.g.