Introductions Summary

Main Ref:	Chiba, K., Y. Taki, K. Sakai and Y. Oozeki 1989
To:	Japan
FAO area:	Asia - Inland waters
From:	China
FAO area:	Asia - Inland waters
Year:	1942
Range:	-
Period:	1925-1949
Established in the wild:	established, natural reproduction
Established in aquaculture:	-	assisted/artificial reproduction
Significant ecological interactions:	some - adverse
Significant socio-economic effects:	-
Introduced by:
Reason:	accidental
Other reason:
Comments:	Introduced into Japan mixed with grass carp from China. It has since established itself in natural waters endangering the Japanese subspecies R. ocellatus smithi by ecological pressures and hybridization. R. ocellatus smithi is now on the brink of extinction as a distinct subspecies (Ref. 6094). R. kurumeus is a synonym of R. ocellatus (Ref. 33793). Hence, this is treated as native to Japan. Also Ref. 53301. Ref: Chiba, K., Y. Taki, K. Sakai and Y. Oozeki, 1989




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