schizothoraxwaltoniregan,

The body is long, and the side is slightly flat. The head is long, the kiss tip. The lower mouth is horseshoe shape. The horny of the lower jaw does not form a sharp front edge, the lips are developed, and the lower lips are divided into left and right leaves; there is a clear groove between the lower lip and the mandibular. The lips are continuous. There are 2 pairs, and the corners must be slightly longer. The chest and abdomen utensils behind the gill gorge have a fine scale, and the scale of the back of the body is neatly arranged, and it is larger than the front of the body. The dorsal fins are strong and strong, and the 3/4-4/5 part of the back edge is deep. The starting point of the abdomen is located below before the starting point of the dorsal fin. The body length is 360mm.

It is mainly distributed in Gongga, Ninzhi, and Shigatse.
Cold water -based fish inhabit the canyon flow.

SchizothoraxWaltoniregan belongs to the cracks and belly fishya, which is only distributed in the middle and upper reaches of the Yarlung Tibetan River in my country. It is a unique species in my country.

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In the past, it was considered that the plateau fish had spawned once a year, but the uncle in Qinghai Lake nude carp, the color forest nude carp, and the titan cracked belly fish did not participate in reproduction every year. The Lhasa cracking fish has a certain percentage of females in the postpartum period since December-March of the following year, and a certain percentage of a certain percentage from April to June, and the body length, weight, and age are significantly higher than the initial mature individual Female. These females could not develop lay eggs in their development. In the breeding season, the vast majority of females with mature glands have no food; and the ovaries are in stage II and III females in phases III, which are more than 3 or more, which is higher than that of other gonades' mature individuals. These unprecedented individuals are likely to have eggs in the previous year and actively eat energy to accumulate energy for eggs in the next year. Therefore, Lhasa cracking fish females have reproductive gaps like Qinghai Lake naked carp, color forest nude carp, and tahite cracked belly fish, which is one -year -old. The reason may be the Qinghai -Tibet Plateau where the Yarlung Tibetan River is located. The water temperature is low all year round, the bait is scarce, and the raftering gonad development process of Lhasa is slow, so it needs to be accumulated for a long time.

Lhasa cracking fish is a unique fish of the Yarlung Tibetan River, and it is also a valuable resource in my country. However, Lhasa cracking fish has caused the current number of Lhasa cracking fish species due to its slow growth, excessive fishing, water conservancy engineering construction, biological invasion, and environmental pollution. Therefore, in order to protect, develop and utilize Lhasa cracking fish species, it is imminent to carry out the artificial reproduction of Lhasa cracking fish.

L be included in the second level of "China National Key Protection Wildlife List". (Only limited to field groups)

Protecting wild animals and eliminating odors.

Everyone is responsible for maintaining ecological balance!

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