Common name: Mottled Sculpin
Family:
Species: Cottus Bairdi
Description: The Mottled Sculpin has a flat face with big round eyes and a large mouth. Its fins are small and pointy with black colored dots. Most of them do not grow bigger than 64 mm.
Habitat: They are most commonly found in warm fresh water streams that contain large quantities of rocks. They live under rocks, plants or any other large objects surrounding them.
Range/migration: They begin in Canada and travel all the way south through Washington, Idaho and New Mexico.
Food: They mostly eat small insects and larvae.
Reproduction: Mottled Sculpin reproduce through spawning. They spawn early in the spring in waters where the temperatures range between 63-74° F (5-16° C). The male will look for a female and once he has found a suitable partner, she will lay its eggs and he will fertilize them and guard them until they hatch. A female can lay anywhere from 100 to 600 eggs.
Enemies: Their enemies are Brook Trout, Brown Trout, Bass, Walleye, and they are occasionally used by some fisherman as bait.
More information: http://www.yahooligans.com/content/animals/species/3527.html
http://www.duluthstreams.org/understanding/mottledsculpin.html
http://www.nativefish.org/Articles/C_bairdi.htm