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Photo of a Porbeagle Shark

Species profile

Porbeagle Shark

Lamna nasus

InvertebratesIUCN: Vulnerable152 iNat observations

At a glance

Porbeagle Shark (Lamna nasus) is an IUCN Vulnerable invertebrate regulated in 6 of 66 jurisdictions tracked by CatchRules across the U.S. and Canada.

Bag limits are uniform at 1 per angler across the 3 regulating jurisdictions.

Across 3 jurisdictions with stated minimum sizes, the average minimum is 54.0 in (≈ 4 ft 6 in).

Confirmed by 29 research-grade iNaturalist observations, with Massachusetts, Newfoundland and Labrador, and Nova Scotia the top jurisdictions by observation count.

Listed under CITES — verify protected-species rules with the issuing agency before retaining or handling.

Notable details

  • A cold-water lamnid shark closely related to the great white, found in cool temperate waters of the North Atlantic and Southern Ocean.
  • Endothermic like its relatives, it can maintain body temperatures significantly warmer than the surrounding seawater.
  • Can reach approximately 3.5 meters (11.5 feet) in length and weigh up to 230 kilograms.
  • Gives birth to live young, typically 1 to 5 pups per litter, after a gestation of about 8 to 9 months.
  • Listed as Vulnerable globally and Critically Endangered in the Northeast Atlantic due to sustained fishing pressure.

Protected status

CITES: appendix II
  • CITES Appendix II (Porbeagle). CoP16 (2014).

Always verify protected-species rules with the issuing agency before retaining or handling.

Background

The porbeagle (Lamna nasus) is a species of mackerel shark in the family Lamnidae, distributed widely in the cold and temperate marine waters of the North Atlantic and Southern Hemisphere. In the North Pacific, its ecological equivalent is the closely related salmon shark (L. ditropis). The porbeagle typically reaches 2.5 m (8.2 ft) in length and a weight of 135 kg (298 lb); North Atlantic sharks…

Background excerpt adapted from Wikipedia's Porbeagle Shark article (CC BY-SA). Visit Wikipedia for the full entry.

Photo credit: iNaturalist / Wikipedia. Identification reference only — verify regulations with the issuing wildlife agency before retaining a catch.