Sharksonline's Blog

Spiny dogfish shark

Posted on: March 11, 2010

Above the spiny dogfish shark

1. The spiny dogfish has dorsal spines, no anal fin, and white spots along its back. These are used defensively but if captured, the shark can arch its back to pierce its captor. Glands at the base of the spines secrete a mild poison.

2. Males mature at around 11 years of age, growing to 80–100 cm (2.6–3.3 ft) in length and females mature in 18–21 years and are a bit larger than males, reaching 98.5–159 cm (3.23–5.22 ft).

3. Both sexes are greyish brown color.

4. Mating takes place in the winter months with gestation lasting 22–24 months. Litters range between 2 and 11 but average 6 or 7 pups.

5. It is found mostly in shallow waters and further offshore in most parts of the world, especially in temperate waters.

In blue this is where it lives

All of this info is from


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