Chadary hitefish (Coregonus chadary)
In addition to Russia, this species lives in Mongolia and northern China. The khadary whitefish range is almost the same as the distribution of the Ussuri whitefish, but the khadary whitefish is living around the year in cold rivers with fast current and rocky bottom. This fish is absent in the warmest stretch of the Amur, in its lower reaches upstream and downstream from Khabarovsk; the Ussury whitefish is very common here.
The khadary whitefish with a small, subterminal mouth looks a lot like the common whitefish; in terms of the ecology, these species are also very similar. On the upper jaw, the flat snout area is well defined; it is tall and obliquely cut back and down. The teeth on the tongue are clearly visible. The body coloration is common for the whole Coregonus genus; on the head and back there are black dots; the tips of all the fins are black.
The spawning period probably coincides with the spawning of the Ussuri whitefish (October-November). The fecundity averages 12,000 eggs. The roe is large, bright orange.