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Cape galaxias
The Cape galaxias ((アフリカーンス語:Kaapse galaxia)),〔(Kaapse galaxia (Galaxias zebratus) )〕 ''Galaxias zebratus'', is a South African freshwater fish of the Galaxiidae family.
It is a small fish, rarely larger than 6 cm, that inhabits clear streams, rivers and ponds. It shares the same habitat as imported trout and bass species and has been identified as prey.〔(A preliminary assessment of the impact of alien rainbow trout (Oncorhynchus mykiss) on indigenous fishes of the upper Berg River, Western Cape Province, South Africa )〕 The numbers of this relatively delicate fish have declined around Cape Town. Although in South Africa it was at one time classified as near threatened, in Australia species of the same genus were driven to extinction by competing salmonids and other introduced species of fish.〔("Biodiversity, Alien trout, and the So what attitude" )〕 It is now classified as "Data Deficient" on the grounds that the taxonomic status of the species complex is unclear.〔
==Description==
The Cape galaxias is a small slender fish with a cylindrical body and no scales. It has a single dorsal fin with 9 to 13 soft rays set well back on the body and just above the anal fin which has a similar number of rays. It is silvery in colour and the internal organs can be seen through the skin.〔(【引用サイトリンク】title= ''Galaxias zebratus'' (Castelnau, 1861): Cape galaxius )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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