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About Dogfish Edit
Dogfish make part of Squalus acanthias species and Squalidae family. This fish has two dorsal fins with ungloved large. They are grey above, white below; occasionally without spots. Dogfish are primitive long-bodies carnivorous freshwater fish with a very long dorsal fin; found in sluggish waters of North America. The body of the spiny dogfish is elongate and slender. The head is pointed. The color is slate gray to brownish on top, sometimes with white spots, becoming white below. This species and the horn shark are the only sharks along the California coast with spines at the beginning of both dorsal fins. These spines may be mildly poisonous and provide a defense for the spiny dogfish. Spiny dogfish occur in temperate and subtropical waters in the Atlantic and Pacific Oceans. The spiny dogfish feeds upon practically all smaller fishes such as herring, sardines, anchovies, smelts and even small spiny dogfish as well as crabs. The females are larger than the males, and produce from 3 to 14 young at a time and in alternate years. Spiny dogfish are long lived and non-migratory.