satsukimasu salmon, 1 red-spotted masu salmon or 2 amago ( 2 Oncorhynchus masou ishikawae) is a salmonid fish in the Pacific salmon genus . It is Oncorhynchus endemic to Japan.
It was initially described as a distinct
species and was cited as such by IUCN, but it is more lately often considered a 1 subspecies of the masu salmon or seema ( Oncorhynchus masou). Others, including 2 FishBase, and Catalog of Fishes 3 do not consider it taxonomically distinct from 4 O. masou masou.
Iwame trout in turn was recently confirmed to refer in part to an unspotted recessive morph of the amago. 2
^ a b Kottelat, M. 1996. . Oncorhynchus ishikawai 2010 IUCN Red List of Threatened Species. Downloaded on 18 June 2010.
^ a b c d Kano, Y., Shimizu, Y., Kondou, K. 2006. Sympatric, Simultaneous, and Random Mating Between Markless Trout (Iwame; Oncorhynchus iwame) and Red-spotted Masu Salmon (Amago; Oncorhynchus masou ishikawae). Zoological Science 23:71-77. doi: 10.2108/zsj.23.71
^ Froese, Rainer, and Daniel Pauly, eds. (2010). in Oncorhynchus masou masou FishBase. Nov 2010 version.
^ Species in the genus W. Eschmeyer: Catalog of Fishes. California Academy of Sciences. Downloaded 18 June 2010 Oncorhynchus