Iwame trout

Iwame trout
Tình trạng bảo tồn
Thiếu dữ liệu (IUCN 2.3)
Phân loại khoa học
Giới (regnum)	Animalia
Ngành (phylum)	Chordata
Lớp (class)	Actinopterygii
Bộ (ordo)	Salmoniformes
Họ (familia)	Salmonidae
Chi (genus)	Oncorhynchus
Loài (species)	O. masou
Variety
Oncorhynchus masou var. iwame
Danh pháp đồng nghĩa
Oncorhynchus iwame Kimura & Nakamura, 1961

The iwame trout or markless trout, Oncorhynchus masou var. iwame, là một variety of salmonid fish inhabiting some fresh waters of Japan. Suspected to be not a real species since some time, it was recently confirmed to be a particular intra-specific morph occurring in some populations of the masu salmon or seema (Oncorhynchus masou). This morph is recessively inherited.

This morph occurs in the amago subspecies (Oncorhynchus masou ishikawae) and apparently also in the nominate subspecies yamame (Oncorhynchus masou masou), if these are not identical.

Chú thích

• 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
• Kano, Y., Kondou, K., Shimizu, Y. 2009. Present status and conservation of the markless forms of stream-resident masu salmon Oncorhynchus masou (the so-called 'iwame') in Japanese mountain streams. Ichthyological Research 57:78-84 DOI: 10.1007/s10228-009-0130-1
• Kottelat, M. 1996. Oncorhynchus iwame. 2006 IUCN Red List of Threatened Species. Downloaded on 4 August 2007.