Migratory yellow croaker increased by 34 times, and ecological protection in Qinghai created a miracle.

Qinghai Lake is an important water body to maintain the ecological security in the northeast of Qinghai-Tibet Plateau and control the eastward expansion of desertification in the west. Due to the low water temperature and poor nutrition, there are only five kinds of fish that can survive in such a water environment, among which yellow croaker is the most important species. There is a local saying that "one or two fish a year, one catty every ten years".

Huangyu naked carp, a specialty of Qinghai Lake, is a national second-class protected animal. Every year from the end of May to mid-August, they go upstream along the river that enters the lake and lay eggs in the upstream Danshui River. Among them, Liusha River, Quanji River and Buha River are the main channels for yellow croaker migration.

This is a life journey full of difficulties and obstacles. On the way of migration, yellow croaker has to go through many difficulties, such as dam blockage, small tributaries stranded, birds preying, etc., which can be described as "a narrow escape." In order to prevent human activities from interfering with the migration of yellow croaker, the gangcha county government replaced the barrage of Shaliu River with 18 steps several years ago, with each step 15 cm to 20 cm high. In order to prevent the yellow croaker from being washed down by the rapids, grooves were also built on the steps. In 20 16, the county invested another 8.5 million yuan to build a migration passage consisting of 2 1 steps in Quanji River, which was designed by Taiwan Province Province.

As an important part of the ecosystem of water, birds and fish in Qinghai Lake, yellow croaker is a key species to maintain the local ecological balance. In recent years, more and more people have realized the urgency and necessity of restoring the population of yellow croaker, and have begun to devote themselves to related ecological protection. Since 1994, Qinghai provincial government has closed the lake for fish culture three times, and in 200 1 year, it ordered the lake to be closed for fish culture for the fourth time1year.

In the past, more than 65,438+00 villages in Hunan and the northern shore of Qinghai once made a living by fishing for yellow croaker. Nowadays, the villagers have transformed, and some have joined the team to protect yellow croaker.

Thanks to the efforts of all walks of life, Qinghai Lake and its watershed are now full of fish and pearls, and their vitality reappears. With the recovery of the number of yellow croaker, the number of birds in this area, such as fishing gulls, striped geese, red-spotted ducks and black-necked cranes, is increasing every year. This beautiful picture of fish and birds has attracted many domestic and foreign tourists.