Of the 50 or so species of fish in the Columbia River basin, perhaps the oddest is the sand roller. Aptly named because of a preference for mud or sandy bottoms of large rivers, sand rollers are ...

At first glance, it looks like a small white bass on the end of a fishing line. White Bass: When the spiny dorsal fin is pulled erect, the soft dorsal fin remains relaxed White Perch: When the spiny ...

Identification: Yellow body with six to seven dark vertical bars. Average adult size is seven – 10 inches, but can grow much larger in some waters. Yellow perch are in the same family as walleye.