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→‎Origins: Selective breeding of the Prussian Carp resulting in Goldfish, should not be part of the Origins of Koi
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==Origins==
The [[carp]] is a large group of fish originally found in Central Europe and Asia. Various carp species were [[domestication|domesticated]] in China and South East Asia, where it was used as a food fish. The ability of carp to survive and adapt to many climates and water conditions allowed the domesticated species to be propagated to many new locations including Japan. Natural color mutations of these carp would have occurred across all populations. Historical records indicate that carp were first bred for color mutations in [[China]]. Selective breeding of the Prussian carp led to the development of the [[goldfish]]. By the [[Song Dynasty]] (960 – 1279), yellow, orange, white and red-and-white coloration had been developed.<ref name="bristol">{{cite web | url=http://www.bristol-aquarists.org.uk/goldfish/info/info.htm | title=Background information about goldfish | accessdate=2006-07-28}}</ref> Goldfish were introduced to Japan in the 16th century and to Europe in the 17th century.
 
Of the various domesticated carp species, the [[common carp]] is the most commonly raised food fish used in aquaculture. The common carp are known as ''koi'' in Japan. Koi were first bred for color in [[Japan]] in the 1820s, initially in the town of Ojiya in the [[Niigata prefecture]] on the north eastern coast of [[Honshu]] island.<ref>http://www.netpets.org/fish/reference/freshref/nishi.html Early Records]</ref> By the 20th century, a number of color patterns had been established, most notably the red-and-white ''Kohaku''. The outside world was not aware of the development of color variations in koi until 1914, when the Niigata koi were exhibited in the annual exposition in [[Tokyo]]. At that point, interest in koi exploded throughout Japan. The hobby of keeping koi eventually spread worldwide. Koi are now commonly sold in most pet stores, with higher-quality fish available from specialist dealers.