15/06/2023
"The blacktip shark is a widespread, medium-sized shark characterized by its black-tipped pectoral, dorsal and tail fins that give this species its name. It is often mistaken for the spinner shark because both species have torpedo-shaped bodies and are known for spinning out of the water while feeding.
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Blacktip sharks live in coastal waters off beaches, over coral reefs and in bays and estuaries. They are a migratory species and usually aggregate in small schools segregated by gender. On average, blacktip sharks grow to about 5.5 feet (1.7 m) long and 55 pounds (25 kg) with females growing larger than males. The largest female blacktip shark ever recorded was 6.8 feet (2.1 m) long.
Blacktip sharks mate via internal fertilization and give birth to 4 to 11 pups every two years. Females leave their pups in shallow-water nurseries away from adult blacktips, most likely to help them avoid predation from other sharks and fellow blacktips that eat smaller sharks. Blacktip sharks mostly eat bony fishes, but also prey on cephalopods, stingrays, crustaceans and shrimp. They are known for chasing after discarded bycatch from fishing boats and trawl nets. Like all sharks, blacktip sharks have specialized cells in their snouts called electroreceptors that allow them to detect the electric current of nearby prey.
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