Shark

Spiny Dogfish

Squalus acanthias

3.9

At a Glance

Avg Length

36"

Avg Weight

15 lbs

World Record

15.9 lbs

Habitat

Cold Atlantic/Pacific

About the Spiny Dogfish

Spiny Dogfish (Squalus acanthias). Found in Cold Atlantic/Pacific. Average length 36 in, weight 15.0 lbs. World record: 15.9 lbs (New England).

The Spiny Dogfish is one of the most recognizable saltwater species in North American waters, classified scientifically as <em>Squalus acanthias</em>. It belongs to the Shark group, most commonly found in cold atlantic/pacific environments. Anglers target this species for both sport and table fare, and it appears across a broad range of water bodies throughout the United States.

A typical Spiny Dogfish runs 36 inches in length and weighs around 15 pounds, though fish in prime habitat regularly exceed these averages. The all-tackle world record stands at 15.9 lbs, set at New England, making it a legitimate target for anglers chasing personal bests. Conservation status varies by region — check local regulations before keeping fish, as some waters have slot limits or catch-and-release requirements in place.

Habitat & Range

Primary habitat: Cold Atlantic/Pacific.

The Spiny Dogfish thrives across a wide range of saltwater environments throughout North America. Seasonal movements are driven by water temperature — fish tend to move into shallower water during spring and fall feeding periods, and push deeper or seek cover during the heat of summer and cold of winter. Understanding these patterns is critical to locating fish consistently across the season.

How to Fish for Spiny Dogfish

Best bait: Squid.

Technique: Bottom.

Match your presentation to the season and conditions. In clear water, downsize your bait and slow your retrieve. In stained or muddy water, switch to high-contrast colors and add vibration. Early morning and evening are the most productive windows during summer months. During spawning season, fish become highly territorial and will strike out of aggression as well as hunger.

World Record

The all-tackle world record Spiny Dogfish weighed 15.9 lbs, caught at New England. This record represents the upper end of what this species achieves under ideal conditions. Most anglers targeting personal bests focus on proven trophy waters with the right combination of habitat, forage base, and light fishing pressure.

State Regulations

Regulations vary by state and water body. Before fishing for Spiny Dogfish, verify current size limits, bag limits, and open seasons with your state fish and wildlife agency. Check your state's fishing license requirements and season dates at the FishLog Fishing License guide.