Fish Identification Guide

Rainbow Trout
Oncorhynchus mykiss
Illustrations by Joe Tomelleri
Description: Non-native fish that requires cold (less than 70 degrees), well-oxygenated water. It tolerates slightly higher temperatures than other trout. It is speckled with small black spots on sides (no orange or reddish spots), back, and tail fin which is slightly forked. Sides also have a broad pinkish or red stripe. It also has small scales, an adipose fin on the midline of the back near the tail, and a small, triangular-shaped axillary process at the upper end of the pelvic fin. The bulk of its diet consists of aquatic and terrestrial insects, amphipods, crayfish, and small fish. It spawns from early winter to late spring, depending on genetic strain and availability of clean, gravelly riffles in streams. Readily caught by anglers.
Family: Trout
Type: Sport Fish
Range: Coldwater lakes and streams of western and north-central Nebraska; also stocked seasonally in eastern Nebraska lakes and streams as put-and-take fisheries.


Source: Nebraska Game and Parks Commission website at http://www.ngpc.state.ne.us