Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Chondrichthyes
- Order
- Carcharhiniformes
- Family
- Centrophoridae
- Genus
- Squalus
- Species
- acanthias
Habitat
Spiny dogfish inhabit temperate and cold waters of continental shelves and slopes, from the surface down to depths of 200-400 meters. They prefer coastal areas in the Atlantic and Pacific Oceans, often found over sandy or muddy bottoms near schools of prey.
Diet
Spiny dogfish primarily eat small fish such as herring and mackerel, as well as squid and crustaceans like shrimp and crabs. They are opportunistic predators that hunt in schools, often feeding at night or during dawn and dusk.
Behavior
Spiny dogfish are highly social, forming large schools that migrate seasonally to follow food sources and temperature changes. They are mostly active at night and exhibit territorial behavior when defending feeding areas, but they can be aggressive when hooked during fishing.
Fishing
Spiny dogfish, a hardy shark species found in temperate and cold coastal waters of the Atlantic and Pacific Oceans, offer rewarding recreational fishing opportunities that support conservation through angler-funded programs; target them in areas like the Western Central Atlantic or Northeast Atlantic over sandy or muddy bottoms at depths of 50-400 meters, often near schools of prey like herring. Use bottom fishing or trolling techniques with heavy tackle, including a sturdy rod (7-10 feet), a conventional reel with 20-50 pound test line, and wire leaders to handle their sharp dorsal spines, paired with effective baits such as cut herring, mackerel, or squid to mimic their natural diet. The best seasons are spring through fall when they migrate closer to shore, with prime times at dawn and dusk when they are most active; always check local regulations, which include size and bag limits as effective management tools to maintain healthy populations, and practice catch-and-release to aid in the recovery of this Vulnerable species as per IUCN listings, ensuring sustainable fishing contributes to habitat protection via excise taxes and restoration efforts. The IGFA all-tackle record stands at approximately 15 pounds 12 ounces, caught in the Atlantic, highlighting the thrill of responsibly targeting these fighters.
Conservation Status
Listed as Vulnerable by IUCN.