200 years ago in Niigata Prefecture's Yamakoshi Village and the surrounding areas,
edible Koi started mutating. Some of the breeders noticed, on rare occasions, Koi
with red and yellow patches, and they started to breed the colored Koi. This is the
historical origins of Nishikigoi. In the Meiji Era, the frase beautiful Koi exist in this
world made the rounds among the people, and varieties such as Kohaku were
Gene Tree of NishikigoiThe Taisho Exposition was held in the 3rd year of the
Taisho Era (1914), which is when Nishikigoi started to become more popular in the
society. The varieties produced and established in the Taisho Era are Taisho
Sanshoku, Shiro Utsuri, Ki Utsuri, and Asagi, and in the Era (1932), Niigata
Fisheries Experiment Station established the Agano River Breeding Pond, and
modified research of Nishikigoi started as a full-time operation.
After the war, breed improvement was temporarily suspended, but with the
introduction of Nezu Ogon, the Hikarimono variety was produced, and this led to the
golden age of Nishikigoi. The creation of the Doitsu lineage variety such as Shusui,
those crossbred with German carp and Nishikigoi, and of the Ogon variety, which
was developed by 2 generations of the Aokisawa family over 25 years, played a
prominent role in today's Nishikigoi development.
There are 80 different varieties of Nishikigoi, including the fixed variety and
variations. INPC will specify 26 as the fixed variety, and other crossbred varieties will
be called variations.