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Sakhalin taimen
''Hucho perryi'' (or ''Parahucho perryi''), known as the Japanese huchen or the Sakhalin taimen, is a large, East Asian species of fish in the salmon family (Salmonidae).
==Description==
''Hucho perryi'' is one of largest, most ancient salmon species and primarily inhabits the lower to middle reaches of lakes and rivers. Fish over 30 cm long are almost exclusively piscivores, while the young feed mostly on aquatic insects. Females typically lay between 2,000 and 10,000 eggs in the spring on the sandy or gravelly river bottom.〔Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p.(from fishbase, Hucho perryi)〕 The average specimens caught have weighed around .〔 Listed as Critically Endangered (CR A4abcd v3.1)〕 The largest fish caught was recorded at 9.45 kg / 20 lb 13 oz (IGFA world record). According to the unauthorized record of Japan, a fish with length of 2.10 cm was captured in 1937 from the Tokachi River, Hokkaidō. This species of fish is able to change its own sex for mating.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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