Mottled sculpin eat mainly aquatic insect larvae, such as mayfly nymphs, caddisfly larvae, stonefly larvae and midges, but also eat small crustaceans, such as amphipods, copepods, and ostracods, they also eat leeches, smaller fish, fish eggs, and some aquatic plant material and algae.
Animal Foods: fish; eggs; insects; terrestrial worms; aquatic crustaceans
Plant Foods: leaves; algae
Primary Diet: carnivore (Insectivore )
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