One hundred and fifty years ago, just three members of the trout family lived in the Jocko River—bull trout, westslope cutthroat trout, and mountain whitefish. That changed when non-Indian settlers arrived. They introduced brown trout, rainbow trout, and brook trout, and now all three species thrive in wild, self-sustaining populations that threaten the natives. Other fish native to the Jocko River include three minnows—the northern pikeminnow, longnose dace, and redside shiner; two suckers—the longnose and largescale; and one sculpin—the slimy. Together, these twelve species make up the fish fauna of the Jocko River. Click on the thumbnails below to learn more about them.