Prickly Sculpin
Cottus asper
Prickly Sculpin (Cottus asper) is a small bottom-dwelling freshwater sculpin of western North America, often abundant in cool lakes, rivers, and estuaries. It has a spiny body armor and a broad range from Alaska to California and inland through parts of the Columbia and Fraser basins.
Identification points
- Large, flattened sculpin head with wide mouth and eyes set high
- Body covered in many small prickles, especially on the sides and back
- Usually mottled brown to olive with broad pectoral fins and a tapering body
Habitat
Cool, clear to turbid freshwater and brackish habitats; commonly on sand, gravel, cobble, and muddy bottoms in lakes, slow rivers, estuaries, and nearshore shallows, often hiding under rocks or debris.
Bait notes
Small pieces of worm, salmon eggs, maggots, shrimp, and other tiny natural baits work well. Small jigs, tube baits, or soft plastics bounced on bottom can also take fish.
Behavior
A nocturnal benthic ambush predator that feeds on insect larvae, crustaceans, worms, fish eggs, and small fish. It stays close to bottom cover and is often most active at night or in low light.
Caution
Its sharp head and gill-cover spines can prick hands when handled; use care unhooking. Regulations vary by water because it is sometimes common but not usually a major game species.
Fishing notes
Fish close to bottom with light tackle, short leaders, and slow presentations near rocks, weed edges, or current seams. Night fishing and dead-sticking bait on the bottom are often effective; many are incidental catches rather than a primary target.