Tidepool Sculpin
Oligocottus maculosus
Tidepool Sculpin (Oligocottus maculosus) is a small Pacific sculpin of rocky intertidal shores and tidepools. It stays among algae, crevices, and cobble at low tide, where its mottled camouflage helps it blend with the bottom.
Identification points
- Small, mottled brown to olive body with strong camouflage blotching
- Large head with a blunt snout and broad sculpin-shaped mouth
- Two dorsal fins, with the first dorsal short and spiny
Habitat
Rocky intertidal tidepools, surge channels, and shallow subtidal cobble reefs along cold-water Pacific coasts; often among algae, barnacles, eelgrass edges, and crevices.
Bait notes
Not a common sport target. Small pieces of shrimp, clam, mussel, crab, or marine worm can take it on tiny hooks; small baited jig heads or micro soft plastics may also work.
Behavior
Benthic and highly cryptic, it sits motionless or darts short distances to ambush small crustaceans, worms, and other invertebrates. It tolerates wave wash and shallow, variable tidepool conditions.
Caution
Sharp spines and a spiny first dorsal can prick hands; use care when unhooking. Avoid collecting from protected marine reserves or intertidal areas with local take restrictions; this is generally a small non-table species.
Fishing notes
Fish very light tackle around tidepool edges, rock cracks, and eelgrass at high tide; use minimal weight and short casts. Handle gently and release quickly because tidepool fish are stress-prone in warm air.