While tidepooling in Central California, we found a few examples of this cool fish.
The Fluffy Sculpin (also known as the Lizard Fish) inhabits the coastal northwestern Pacific Ocean, ranging from Kodiak, Alaska to Baja California. Individuals reach up to 3-1/2 inches in length and are commonly found in tidepools; they are often associated with algae.
The Fluffy Sculpin varies significantly in color and pattern, with a spotted or mottled pattern ranging from emerald green to reddish, to pink with a blue underbelly. They are difficult to detect in their native environment as their blotchy camouflage pattern matches well with their surroundings.
This fish has no scales, but rather has “fluffy flesh” behind its dorsal fin for which it gets its name.
The Fluffy Sculpin is a predator, with a diet consisting mainly of amphipods and polychaete worms. Larger individuals also feed on small shrimp and crabs.
As with many other intertidal fishes, a homing mechanism has been documented in this species. It is suggested that Fluffy Sculpins occupy home ranges of more than one pool. It is also suggested that the fluctuating intertidal environment demands that these fish be able to find and recognize safe spots.
If conditions deteriorate in the pool inhabited by the Fluffy Sculpin when the tide is out, it is able to leave the water and breathe air. This species is a particularly interesting air breather, because its respiratory rates in air and in water are similar and stable.
This is a super cool fish that not only is common, but is also fun to find, due to its variablilty in appearance.