Salvelinus leucomaenis

Salvelinus leucomaenis, the whitespotted char, is an East Asian trout in the genus Salvelinus, called iwana in Japanese. Both landlocked and ocean-run forms occur. The landlocked form typically grows up to 35 cm (1 ft 2 in), and prefers low-temperature streams. The seagoing fish typically grows to 70 cm (28 in) long. The largest reported specimen was 120 cm (3 ft 11 in) long and the oldest was nine years old.

Salvelinus leucomaenis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Salmoniformes
Family: Salmonidae
Genus: Salvelinus
Species:
S. leucomaenis
Binomial name
Salvelinus leucomaenis
(Pallas, 1814)
Subspecies

S. l. leucomaenis (Pallas, 1814)
S. l. imbrius D. S. Jordan & E. A. McGregor, 1925
S. l. pluvius (Hilgendorf, 1876)
S. l. japonicus Ōshima, 1961

Iwana is widely fished in Japan. Apart from Hokkaido in Japan, the species is found in northeast Korea and in Russia in Sakhalin, Kuril Islands and Kamchatka.

The kirikuchi char (Salvelinus leucomaenis japonicus or Salvelinus japonicus) is usually considered a subspecies of S. leucomaenis. Two other subspecies are also listed, S. l. imbrius and S. l. pluvius.

References


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