After approximately months of gestation, females give birth every other year near inshore locations. Broods contain pups. Size at birth inches. Valuable commercial species with marketable flesh, hide, fins, and liver. One of the most commonly collected sharks in bottom-longline commercial fishery.
Fished for sport with trolling tackle and often leap out of the water when hooked. Has been implicated in bites on spearfishing divers resulting in no fatalities. Since spinners are similar looking to blacktip sharks, they may have been incorrectly identified during shark bites. Spinner sharks live in shallow water and can be found anywhere from 0 to feet m deep. Click here or below to download hands-on marine science activities for kids.
NOAA Fisheries. Home Marine Life. Fun Facts About Spinner Sharks 1. Spinner sharks can leap up to 20 feet 6. Spinner sharks reach a maximum length of 9. Learn More. Take Action. Blacktip sharks are viviparous, which means that the young develop inside them, which means the females have live births and do not lay eggs.
The mother leaves the pups near shallow coastal waters to keep them away from other sharks and other predators. The Blacktip Shark lives in coastal waters worldwide and can be found in large numbers along the Gulf of Mexico.
They have been spotted as far north as Cape Cod in Massachusetts. Blacktip Sharks can also be found in the waters of the Indian Ocean. Blacktip Sharks live in the waters of South Africa and Madagascar. The blacktip shark is also found in the waters of the Pacific Islands, such as the Galapagos Islands, Hawaii, Tahiti, as well as other southern Pacific Islands to the north coast of Australia.
Due to their closeness to the coast, the Blacktip Shark is often the shark species that humans encounter in the water. Scientists believe most of the shark bites in Florida can be attributed to the Blacktip Shark. While not an aggressive shark, the Blacktip Shark will protect its food.
Blacktip Sharks are carnivores. They feed on small schooling fishes , such as herring, sardines, menhaden, mullet, and anchovies. They eat other bony fish, including catfish, groupers, jacks, flatfishes, and porcupine fish. Blacktip Sharks also feed on cephalopods, stingrays, crustaceans, and shrimp. The blacktip shark often follows fishing boats so that they can eat the discarded fish. Blacktip Sharks are known to feed at dawn and dusk.
Humans pose a threat to Blacktip Sharks due to accidental capture in fishing nets, commercial fisheries, and local fisherman overfishing due to the demand for the meat and the fins. The meat is considered tasty, and the fins are used for soup in East Asian markets.
The fins are also known to have medicinal purposes in East Asia. The fish can get trapped in fishing nets, and the young can get caught in bottom trawls.
Blackfin Sharks are often fished for sport as they are known to put up a fight, leaping in the air when caught. Another way in which humans posed a threat to the Blacktip Shark is coastal development. Destruction of coral reefs and mangroves means fewer places to set up their nurseries and hide puppies from predators.
These areas are also where sharks find their prey, so hunting for food is becoming more difficult. Migration patterns have changed because the sea creatures they eat struggle to survive in the warmer acidic waters close to the equator.
To access food for the survival of the species, the Blacktip Shark is finding new waters. They move away from the hot waters close to the equator and head towards the north and south poles, following their food supply, seeking cooler waters.
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