The prefecture is the origin of ornamental koi carp, or nishikigoi ... converted into high-quality, palatable fish feed,” says Takahiro Watari, an environmental engineer at Nagaoka University ...

A large koi fish was spotted and removed from the McKenzie River near Eugene after a report to the Oregon Invasive Species ...

Koi fish, with origins tracing back over 2,000 years to China, have become an integral part of Japanese culture, representing ...

The Oregon Department of Fish and Wildlife has removed an invasive koi fish from the McKenzie River near Eugene. The fish was fish spotted Dec. 18 near the Armitage Boat Landing. The large koi was ...