Log in links for this page

Learn about blue sharks

Blue sharks are common throughout the world and are targeted as a sport fish. Read on to learn more about these sharks.


  • Blue sharks can get up to 13 feet in length but generally are closer to 10 feet long. They have a deep blue color dorsally, which fades to light blue on the sides and white on the belly. They have slender bodies with large eyes and a cone shaped snout. 
Blue shark

Blue shark facts

  • Species name: Prionace glauca
  • Blue sharks are part of the Requiem shark family.
  • They prey on many things including:
    • Herring
    • Squid
    • Cuttlefish
    • Smaller sharks
    • Sea birds
    • Carrion
    • Garbage
  • Young blue sharks are preyed upon by larger pelagic predators.
  • White sharks and shortfin mako sharks are a few of the animals that prey on adult blue sharks.
  • Blue sharks birth live young that hatch internally. The gestation period is 9–12 months. 
  • Average blue shark litters are 25–50 pups, but can get up to 135 pups. The health and size of the female are what determine the litter size.
  • Blue shark pups are 16–20 inches long at birth, and are born in central and eastern areas of the North Atlantic ocean.
  • Commercial fisheries don't target blue sharks in the United States.
  • Blue sharks cover most of the ocean except for the Arctic and southern oceans. 
blue shark distribution map

Additional Resources

Angling tips

  • Sport fishermen often target blue sharks as they are easy to catch and spend time swimming around boats. You should use a sturdy rod and a traditional larger reel. Herring or bluefish are good bait fish.
  • You will have an easier time reeling in a shark if you use a fighting belt and a back harness.
  • Blue sharks may roll when hooked, so you should keep the line tense to prevent rolling. However, if a shark rolls, guide it to roll in the opposite direction by pulling the wire up using thick leather gloves.

Contact   for Learn about blue sharks


DMF Staff Directory View 


(508) 990-0449


836 S Rodney French Blvd, New Bedford, MA 02744

Help Us Improve Mass.gov  with your feedback

Please do not include personal or contact information.