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Some larger individuals have unmarked or nearly unmarked fins. [5] Blacktip sharks can temporarily lose almost all their colors during blooms, or "whitings", of coccolithophores. [11] This species attains a maximum known length of 2.8 m (9.2 ft), though 1.5 m (4.9 ft) is more typical, and a maximum known weight of 123 kg (271 lb). [6]
Most blacktip reef sharks are no more than 1.6 m (5.2 ft) long, though rarely individuals may reach 1.8 m (5.9 ft) or possibly 2.0 m (6.6 ft). [3] The maximum weight on record with the International Game Fish Association is 13.6 kg (30 lb).
Superficially, the smoothtooth blacktip shark resembles the blacktip reef shark (C. melanopterus). It is rather robust in build, with a short and blunt snout. The large nostrils are preceded by well-developed, triangular flaps of skin. The small, circular eyes are equipped with nictitating membranes. The mouth forms a wide arch and has very ...
In this screen capture, Jill Horner a recent transplant to the area from Buffalo, N.Y., captured video of a shark swimming off Hilton Head Island on Sept. 4, 2022, Labor Day weekend.
This blacktip shark was caught and released in August 2021 on the boat of local shark expert Chip Michalove, owner and operator of Outcast Sport Fishing on Hilton Head Island.
But now that they're here, the blacktip sharks are congregating in huge numbers. Dr. Kajiura estimated more than 10,000 of the sharks are swimming just off the coast of Palm Beach, Florida.
The common blacktip shark (pictured) is nearly identical in appearance to the Australian blacktip shark. Physically, the Australian blacktip shark can only reliably be distinguished from the common blacktip shark by the number of vertebrae (174–182 total, 84–91 before the tail in C. tilstoni, 182–203 total, 94–102 before the tail in C. limbatus).
Blacktip shark: Carcharhinus limbatus (J. P. Müller & Henle, 1839) Vulnerable 1.5 m (4.9 ft) maximum 2.6 m (8.5 ft) Oceanic whitetip shark: Carcharhinus longimanus (Poey, 1861) Critically endangered 3 m (9.8 ft) Hardnose shark: Carcharhinus macloti (J. P. Müller & Henle, 1839) Near threatened 1.1 m (3.6 ft) Blacktip reef shark