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The Amur grayling is a cold-water economic fish with extremely high aquaculture value
The Amur grayling belongs to the order Salmoniformes, family Thymallidae, genus Thymallus, commonly known as spotted trout and red-scaled fish. In China it is found in the upper reaches of the Heilongjiang River, the upper reaches of the Nenjiang River, the Mudanjiang River, the Ussuri River, the Songhua River, the Suifen River and other places. Abroad it is distributed along the coast of the Sea of Okhotsk and the coast of the Sea of Japan in Russia. The grayling has two other subspecies in China: the Yalu River grayling from the Yalu River and the Arctic grayling from the **Irtysh River basin. The above three subspecies are quite similar in appearance and habits, differing only in geographical distribution. Amur grayling