There are fish in Qinghai Lake.

With the Yangtze River Basin in the life of more than 400 kinds of fish is not the same, the composition of the fish in the Qinghai Lake Basin is relatively simple, in addition to man-made introduction of carp, crucian carp and other fish, the native indigenous fish there are only nine species, most of which are Huangshui fish, that is, the Qinghai naked carp is commonly known as the fish in the 130,000 years ago in fact, is the Yellow River Carp, only with the independence of the Qinghai Lake, the gradually degraded its scales and evolved into a new species.

In the last century, the 1960s, the people near the Qinghai Lake is by Huangshui through the most difficult period, a year's fishing volume of up to 50 million pounds, which also brought Huangshui extinction, the number of Huangshui in the lake fell sharply, several times on the verge of extinction, the total number of the 70's is less than 10,000 tons.

In order to protect the Huangshui, in 1982 the Qinghai Lake has implemented the first closed lake fishing ban, in 1994 it is listed as the second level of protection of animals, so far, the Qinghai Lake a **** implementation of six fishing ban, the sixth closed lake fishing ban from January 1, 2021, a period of ten years.

Huangshui's habits

1, behavior habits: Huangshui usually more in the shallow waters of the lake activities foraging, winter in the deep water overwintering, spend 4 ~ 5 months of freezing.

2, food: Huangshui is a broad-spectrum omnivorous fish, mainly feeding on algae and zooplankton, adult fish also often swallow decaying plant debris, aquatic insects and fish.

The shift in diet during its growth and development can be divided into three different stages: the first stage mainly ingests small zooplankton, the second stage is dominated by large zooplankton, and the third stage (i.e., the adult resting stage) almost all the biological food in the water column is present in the digestive tract of the fish, which is compatible with the lack of bait in Qinghai Lake. When migratory spawning takes place, its food intake decreases greatly, and there is even a short period of time when it stops feeding.

Reference: Baidu Encyclopedia-Qinghai Lake