Koi
Videos
Koi, or more specifically nishikigoi, are colored varieties of carp that are kept for decorative purposes in outdoor koi ponds or water gardens.
Koi in Japan
A school of koi containing multiple different varieties
Terraced rice paddies in Yamakoshi, Niigata Prefecture
Illustration of a three-colored carp in Ritsurin Garden, 1900. This is the oldest illustration of koi. It has the annotations asagi on its back and red on its belly.
Cyprinus rubrofuscus
Videos
Cyprinus rubrofuscus, or the Amur carp, is a species of freshwater fish belonging to the Cyprinidae family. It is the ancestral form of some domesticated koi fish, which are well known for their strik
Koi
…sites. For example, pharyngeal teeth of the extinct species Jōmon Koi (Cyprinus sp.) in addition to the modern species of carp (Cyprinus carpio or Cyprinus rubrofuscus) have been excavated from the Akanoi Bay lakebed site (赤野井湾湖底遺跡) in Lake Biwa at the end of the Early Jomon Period (11,500–7,000 years ago). In addition…
Arthur
Red coloration of fins
Phylogenetic tree of C. rubrofuscus (indicated by a black square)