Oncorhynchus masou formosanus

Oncorhynchus masou formosanus

Conservation status
Critically Endangered (IUCN 2.3)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Salmoniformes
Family:	Salmonidae
Genus:	Oncorhynchus
Species:	Oncorhynchus masou
Subspecies:	O. m. formosanus
Trinomial name
*Oncorhynchus masou formosanus* (D. S. Jordan & Ōshima, 1919)

Oncorhynchus masou formosanus, the Formosan landlocked salmon^[1] or Taiwanese salmon, is a freshwater salmonid fish endemic to Taiwan.

The Formosan landlocked salmon is a subspecies of the more widespread West-Pacific cherry salmon (or masu salmon). This Taiwanese subspecies is critically endangered, being at high risk for extinction, and is protected in its native habitat. The Formosan land-locked salmon is one of the rarest fish in the world. Once a staple of the Taiwanese aborigine diet, there are now barely more than 400 of this type of salmon left. Overfishing has led to its decline. Conservationists are trying to save this subspecies which is threatened nowadays mainly by pollution.

Formosan landlocked salmon are about a foot in length and inhabit cold, slow-flowing streams with gently sloping beds at elevations above 1,500 metres (4,900 ft), such as the Chichiawan Stream and the Kaoshan Stream (formerly named Hsuehshan Stream/Wuling Stream) in the upper reaches of the Tachia River.

The taxonomic rank of the endemic Taiwanese salmon is in dispute.^[2] Some authors consider it not distinct from the nominate cherry salmon (O. masou masou), others as a regional subspecies O. masou formosanus, and still others list is as a full species O. formosanus.

At this time, these salmon represent the southernmost natural distribution of members of the family Salmonidae in Asia.

Notes

↑ Yan HY (2000) Threatened fishes of the world: Oncorhynchus masou formosanus (Jordan & Oshima, 1919) (Salmonidae) Environmental Biology of Fishes 57:314.
↑ Kottelat, M. 1996. Oncorhynchus formosanus. 2006 IUCN Red List of Threatened Species. Downloaded on 12 December 2010.

References

Froese, Rainer, and Daniel Pauly, eds. (2010). Oncorhynchus masou formosanus in FishBase. April 2010 version.

Salmon

Groups and species	Salmon Salmonidae Adriatic salmon Atlantic salmon Black Sea salmon Pacific salmon Chum salmon Chinook salmon Coho salmon Masu salmon Pink salmon Steelhead Sockeye salmon Taiwanese salmon Danube salmon Sabertooth salmon Genetically modified salmon

Fisheries and management	Aquaculture of salmon Fly fishing bibliography Environmental issues with salmon Old McKenzie Fish Hatchery Pre-spawn mortality in coho salmon Puget Sound salmon Putcher Putcher fishing Alaska salmon fishery Salmon conservation Salmon run June hogs

As food	Salmon as food Cured salmon Gravlax Lohikeitto Lomi salmon Lox Rui-be Salmon burger Salmon cannery Salmon tartare Smoked salmon Images

Diseases and parasites	Diseases and parasites in salmon Amoebic gill disease Ceratomyxa shasta Gyrodactylus salaris Henneguya zschokkei Infectious salmon anemia virus M74 syndrome Myxobolus cerebralis Nanophyetus salmincola Salmon louse Sea louse Salmon tapeworm Sphaerothecum destruens Tetracapsuloides bryosalmonae

Organisations	Atlantic Salmon Federation Cook Inlet Aquaculture Association North Atlantic Salmon Conservation Organization Pacific Salmon Commission Welsh Salmon and Trout Angling Association Wild Salmon Center Yakima Klickitat Fisheries Project

Other	Ceasg H. Forman and Son (salmon smokehouse) Salmon (color) Salmon of Knowledge Salmon Fishing in the Yemen The Salmon Fly

This article is issued from Wikipedia - version of the 10/31/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.