Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Chondrichthyes
- Order
- Carcharhiniformes
- Family
- Centrophoridae
- Genus
- Squalus
- Species
- Suckleyi
Habitat
Pacific spiny dogfish inhabit the coastal and continental shelf waters of the North Pacific Ocean, from the Bering Sea south to Baja California. They prefer depths ranging from 10 to 900 meters, often in cool, temperate waters over sandy or muddy bottoms. These sharks form large schools in areas with abundant prey.
Diet
Pacific spiny dogfish primarily consume small fish like herring and sardines, as well as squid and crustaceans such as shrimp and crabs. They are opportunistic predators that hunt in schools, often ambushing prey in open water or near the seafloor. Feeding activity peaks at night or in low-light conditions to avoid larger predators.
Behavior
Pacific spiny dogfish are highly social, forming large schools that can include thousands of individuals for protection and hunting. They exhibit migratory behavior, moving seasonally to follow food sources and warmer waters. These sharks are active swimmers with nocturnal feeding patterns and show little territorial aggression.
Fishing
Target Pacific spiny dogfish, a resilient shark species that supports conservation through recreational fishing revenues funding habitat protection in the North Pacific, using effective bottom fishing or trolling techniques with medium-heavy rods (7-9 feet), reels spooled with 20-50 lb monofilament or braided line, and sturdy hooks to handle their spines and strong runs—pair this with bait like fresh herring, squid, or shrimp, or metal jigs that mimic their prey such as small fish and crustaceans for the best results. The prime season runs from late spring through fall in coastal waters of the Northwest Pacific, including British Columbia, Alaska, and California, with peak activity at dawn, dusk, or night when they school and feed opportunistically; focus on continental shelf areas from 10 to 300 meters over sandy or muddy bottoms where they form large groups near baitfish schools for higher success rates. The IGFA all-tackle world record stands at 22 pounds 4 ounces, caught off the coast of Massachusetts, though Pacific specimens typically reach up to 12 pounds, rewarding anglers with thrilling fights. Conservation-wise, adhere to regional regulations like bag limits and size slots as smart management tools that ensure sustainable populations—such measures, supported by angler fees, promote catch-and-release practices and help protect these long-lived sharks from overfishing, contributing to their Least Concern status on the IUCN Red List.
Conservation Status
Listed as Least Concern by IUCN.