Masu salmon or cherry salmon (Oncorhynchus masou, Rus. - Seema)
Masu has a body similar to coho’s but it is a smaller fish. It has very big teeth and its spawning dress has crimson cross streaks.
Masu is warm-requiring salmon with main range in rivers of Japan, Korea and Primorsky Krai. In Kamchatka this species can be found mostly in rivers of western Kamchatka, more rarely in the east of the peninsula.
The longest masu registered is 71 cm (28”), 9 kg (19.8 lb). Its usual length is 46-67 cm (18-26”) and weight is 1.5-3 kg (3.3-6.6 lb).
Fish enters rivers for spawning in early spring from May to July and spawns from July to September. Its spawning grounds are located in upper reaches of rivers, in spring channels.
It has insignificant commercial importance and it is not an object of specialized fishing in Kamchatka.