Satsukimasu salmon

Satsukimasu salmon
Conservation status
	; Endangered (IUCN 2.3)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Salmoniformes
Family:	Salmonidae
Genus:	Oncorhynchus
Species:	O. masou
Subspecies:	O. m. ishikawai
Trinomial name
	Oncorhynchus masou ishikawai; Jordan & McGregor, 1925
Synonyms
	Oncorhynchus ishikawai Jordan & McGregor, 1925

The satsukimasu salmon,^[1] red-spotted masu salmon^[2] or amago^[2] (Oncorhynchus masou ishikawai) is a salmonid fish in the Pacific salmon genus Oncorhynchus. It is endemic to Japan.

It was initially described as a distinct species and was cited as such by IUCN,^[1] but it is more lately often considered a subspecies of the masu salmon or seema (Oncorhynchus masou)^[2]. Others, including FishBase,^[3] and Catalog of Fishes^[4] do not consider it taxonomically distinct from O. masou masou.

The Iwame trout in turn was recently confirmed to refer in part to an unspotted recessive morph of the amago.^[2]

References

^ ^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). Oncorhynchus masou masou in FishBase. Nov 2010 version.
^ Species in the genus Oncorhynchus W. Eschmeyer: Catalog of Fishes. California Academy of Sciences. Downloaded 18 June 2010

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[IN-1] Kottelat, M. 1996. Oncorhynchus ishikawai. 2010 IUCN Red List of Threatened Species. Downloaded on 18 June 2010.

[Kano-2] 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

[fishbase-3] Froese, Rainer, and Daniel Pauly, eds. (2010). Oncorhynchus masou masou in FishBase. Nov 2010 version.

[4] Species in the genus Oncorhynchus W. Eschmeyer: Catalog of Fishes. California Academy of Sciences. Downloaded 18 June 2010

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