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Golden trout

Golden trout
California Golden Trout.jpg
Not evaluated (IUCN 3.1)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Salmoniformes
Family: Salmonidae
Genus: Oncorhynchus
Species: O. mykiss
Subspecies: O. m. aguabonita
Trinomial name
Oncorhynchus aguabonita
(Jordan, 1892)
KernRiverRainbowRangeMap.png
Kern River trout range map

The California golden trout, or simply the golden trout (Oncorhynchus mykiss aguabonita), is a subspecies of the rainbow trout native to California. The golden trout is native to Golden Trout Creek (tributary to the Kern River), Volcano Creek (tributary to Golden Trout Creek), and the South Fork Kern River.

The California golden trout is closely related to two other rainbow trout subspecies. The Little Kern golden trout (O. m. whitei), found in the Little Kern River basin, and the Kern River rainbow trout (O. m. gilberti), found in the Kern River system. Together, these three trout form what is sometimes referred to as the "golden trout complex".

Originally the golden trout was described as a subspecies of the rainbow trout, with a name Salmo mykiss agua-bonita, and it is still often considered a subspecies (now called Oncorhynchus mykiss aguabonita) along with several other rainbow trout subspecies commonly known as redband trout.

FishBase and the Catalog of Fishes however now (2014) list O. aguabonita as an independent species rather than as subspecies of O. mykiss. Likewise, while ITIS lists O. m. whitei and O. m. gilberti as subspecies of O. mykiss,O. aguabonita instead is listed as a full species.

The golden trout has golden flanks with red, horizontal bands along the lateral lines on each side and about 10 dark, vertical, oval marks (called "parr marks") on each side. Dorsal, lateral and anal fins have white leading edges. In their native habitat, adults range from 6 to 12 inches (15 to 30 cm) long. Fish over 12 inches (30 cm) are considered large. Golden trout that have been transplanted to lakes have been recorded up to 11 pounds (5.0 kg).

The golden trout should be distinguished from the similarly named golden rainbow trout, also known as the palomino trout. The golden rainbow is a color variant of the rainbow trout.


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Wikipedia

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