Common names: Koi, コイ, コイ(野生型)
Occurrence: introduced
Salinity: freshwater
Abundance: fairly common (chances are about 50%) | Ref:
Importance: commercial | Ref: FAO, 1994
Aquaculture: commercial | Ref: FAO, 1997
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Occurs in Hokkaido, Honshu, Shikoku, and Kyushu. Also recorded from Lake Biwa (Ref. 78994). Is also caught in saline river mouths, and is a moderately popular sports fish (Mark Donachy, pers. Comm., 2001). In Japan, carp is particularly symbolic on Boy's Day (May 5) because it represents strength, thus a carp replica called koi nobori, meaning to "to hang and fly a carp" is flown for every male member of the family on that day (Ref. 44091). Rare in Shiga Prefecture (Ref. 79825). Also Ref. 12228, 37812, 43640. Status of threat: Threatened native population of Lake Biwa (LP) (Ref. 94887).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ja.html
National Fisheries Authority: http://www.maff.go.jp/eindex.html
Occurrences: Occurrences Point map
Main Ref: Alikunhi, K.H., 1966
National Database: