Other names: Spiny dogfish, Spurdog, Mud shark
The Piked dogfish (Squalus acanthias) is a small, widespread shark species found in temperate and subarctic oceans. Known for its distinctive white spots and sharp dorsal spines, it is often encountered by anglers. Although small, Spiny Dogfish are voracious predators, feeding on fish, crustaceans, and cephalopods. They are commonly caught in commercial fisheries and used for various products.
Other names
Spiny dogfish, Spurdog, Mud shark
Length
~90" (max 120)
Weight
~5" (max 10)
Water
Salt
Water Temp
15° F
Depth
50-700 ft
Cut Bait (Fish)
Herring
Mackerel
Sardines
SquidAlways open
No
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Piked dogfish prefer cooler waters, often found in temperate and subarctic regions
They inhabit both coastal and offshore waters, frequently at depths ranging from shallow to moderately deep
Their diet consists of small fish, crustaceans, and cephalopods, making them versatile feeders
These sharks often form large schools, particularly during feeding or migration
Piked dogfish have a long gestation period, with females carrying embryos for up to two years
They give birth to live young, with litters ranging from a few to several pups
These sharks are slow-growing and reach sexual maturity relatively late, which makes their populations vulnerable to overfishing
Migrations occur seasonally, with schools moving to different depths and regions depending on water temperature and food availability
