About The Species
U.S. wild-caught Atlantic blacktip shark is a smart seafood choice because it is sustainably managed and responsibly harvested under U.S. regulations.
Above target population levels in the Gulf of Mexico. Population levels are unknown in the Atlantic, but presumed stable.
At recommended levels.
Gear used to catch blacktip sharks has minimal impact on habitat.
Regulations are in place to minimize bycatch.
- According to the 2018 stock assessment, Atlantic blacktip sharks in the Gulf of Mexico are not overfished and not subject to overfishing. Summary stock assessment information can be found on Stock SMART.
- The population status is unknown for blacktip sharks in the Atlantic. The fishing rate has been kept at recommended levels.
- Atlantic blacktip sharks are gray to gray-brown, with white on the belly and a conspicuous wedge-shaped band or Z-shaped line on the sides.
- Their pectoral, dorsal, and tail fins have black tips, but the anal fin is white.
- Their bodies have a torpedo shape, which allows them to swim through the water with little effort.
- Atlantic blacktip sharks are often confused with spinner sharks due to their similar size, shape, coloration, and behavior. Both species are known for leaping and spinning out of the water while feeding on schools of fish. A distinguishing feature is that the anal fin on the blacktip shark is white whereas the anal fin of the spinner shark has a black tip.
- Atlantic blacktip sharks grow quickly, and can reach up to 6 feet in length. The oldest observed blacktip shark was 15.5 years old.
- They often form large groups, segregated into separate schools of males and females when they are not mating. They mate between March and June.
- Males mature at 4 to 5 years of age, while females mature later, at 6 to 7 years of age.
- Females have an 11- to 12-month gestation period and give birth to an average of three pups per litter in the Atlantic and four to five pups per litter in the Gulf of Mexico.
- Pups are born in shallow nursery grounds away from the adult population. After giving birth, the females leave the nursery area while juveniles remain.
- Blacktip sharks eat bony fishes, smaller sharks, squids, stingrays, shrimp, and crabs. They often follow fishing boats and are sometimes seen consuming discarded fish.
Where They Live
- Atlantic blacktip sharks can be found year-round in the Gulf of Mexico and are common from Virginia through Florida.
- They have been known to migrate as far north as Cape Cod, Massachusetts.
- NOAA Fisheries and the Atlantic Highly Migratory Species Division manage the Atlantic blacktip shark fishery.
- Managed under the Consolidated Highly Migratory Species Fishery Management Plan:
- Permits are required, and only a limited number of permits are available.
- Commercial quotas and limits on how many sharks can be landed per fishing trip.
- Gear restrictions and requirements.
- Fishing season is generally year-round, but individual commercial shark fisheries close when the quota is reached.
- Shark dealers are required to attend Atlantic shark identification workshops to help them better identify shark species.
- Prohibited species—there are more than 20 species of sharks that cannot be landed (e.g., white, dusky, basking, longfin mako, night). Some of these species look similar to the species that can be landed. The recreational shark identification and the prohibited shark identification placards can help with identification.
- The Shark Conservation Act requires that all sharks, with one exception, be brought to shore with their fins naturally attached.
- Compliance guides are available for all commercial and recreational regulations across Atlantic highly migratory species fisheries.
- Unlike some highly migratory shark species, there is no international management for Atlantic blacktip sharks at this time.