kokanee of Oncorhynchus nerka

The length is about 50cm(It reaches 70cm or more in a big individual). The oceanic life period somewhile has white by the belly in the silver white color by the body coloration. Bright red that is the nuptial coloration appears to ..male/female.. whole body ..both heads.. except while maturing, and it dyes to vivid bright red, and this color is an origin of the name. the individual before and after the run-upThe surgical knife often discolors a little. There are neither a black dot nor an argent radiation article in the caudal fin. Moreover, the male at the spawning time rises like camel's seaweed dorsal, and becomes a figure near the pink salmon. All individuals die after laying eggs.