Carcharhinus acronotus
Small shark of the shelf, over sand, shell, and coral bottoms, with a dark snout tip. Vulnerable (VU) on the national list and Endangered (EN) worldwide: catch banned in Brazil.
Also called: cação-corta-garoupa
The blacknose shark (cação-corta-garoupa) is a small to medium shark of the continental and island shelves of the western Atlantic, from North Carolina (USA) to southern Brazil and Uruguay, including the Gulf of Mexico and the Caribbean. It usually lives between 9 and 64 m, over sand, shell, and coral bottoms. It eats small fish, such as sargos and porcupinefish, and is prey for larger sharks. The female has 3 to 6 pups per litter. Near divers, it adopts a threat display, with an arched back, low tail, and raised head. It is Vulnerable (VU) on the national list, where it was added in 2023, and Endangered (EN) in the IUCN global assessment (2019). Do not seek out this species.
Small to medium shark, with a fusiform body, grayish brown above and pale below. Its mark is the dark spot on the tip of the snout, which gives it its English name, blacknose. It resembles other small Carcharhinus sharks, such as the blacktip shark (galha-preta) and the night shark (tubarão-noturno); the snout spot helps tell it apart. When in doubt, release it.
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Western Atlantic, from North Carolina (USA) to southern Brazil and Uruguay, including the Gulf of Mexico and the Caribbean (FishBase: 40°N to 37°S). In Brazil, the species occurs along the coast, on the shelf. In Latin America, FishBase lists it from Mexico and the Caribbean to Venezuela, the Guianas, Brazil, and Uruguay.
Habitat: Continental and island shelves, from 9 to 64 m, over sand, shell, and coral bottoms.
coast
Estimate: present all year on the shelf; the weights are neutral. Catch is banned all year.
Any time. There is no reliable data on the activity schedule in Brazil.
A warm-water species; cold water pushes the shark out of the shallows.
Little known effect.
No known effect.
Heavy rain muddies coastal water; the shark usually moves away.
Not applicable at sea.
Not well known.
Rough seas make any trip hard.
The tide moves food in channels and sandbanks.
From 9 to 64 m.
accessories
If a blacknose shark is hooked by chance while bottom fishing, keep it in the water and cut the leader close to the hook. On sand and shell bottoms, a barbless circle hook comes out more easily.
Summary of the regulations we found, with the source for each. Rules change; before keeping or transporting fish, check with the state environmental agency.
Conservation: On the national list of threatened species as VU, in force since May 22, 2023 (Portaria MMA nº 354/2023). Global: Endangered (EN, assessed by IUCN on Jul 1, 2019). The whole family Carcharhinidae has been in CITES Appendix II since Nov 25, 2023.
The national list (Portaria GM/MMA nº 1.667/2026) classifies the species as VU. Under Portaria GM/MMA nº 1.666/2026 (art. 3º), VU, EN and CR species have full protection: catch, transport, storage, processing and sale are banned. If you hook one by accident, release it at once, handling it as little as possible.
Source: Portaria GM/MMA nº 1.666/2026, art. 3º, and Portaria GM/MMA nº 1.667/2026
In Brazil, finning is banned: cutting off the fins and discarding the rest of the body. The rule covers landing, transport, and trade by fishing vessels: every shark or ray must arrive whole, with its fins naturally attached to the body (partially folding them against the body is allowed); carrying an animal aboard without fins or with loose fins, and transferring sharks and rays between vessels, is prohibited. This does not authorize catching this species, which is banned.
In recreational sport fishing in Mexican saltwaters, the limit for sharks is one specimen per angler per day, which counts as five toward the total limit of ten fish. Fish caught in sport fishing may not be sold. Catch and release does not count toward the limit: prefer releasing.
In 2021 Colombia stopped considering sharks and marine rays a fishery resource and began treating them as a hydrobiological resource; the recitals of Decree 281/2021 state that they may not be extracted for commercial or sport purposes, and the decree created an environmental protection plan. Later AUNAP rules dealt with incidental catch in artisanal fishing; we did not check the consolidated text. When in doubt, release it into the water.
Law 9 of 2006 bans finning in Panama's jurisdictional waters. The law's definition of shark fishing covers directed or incidental catch by artisanal, commercial, industrial and sport vessels. The fine for artisanal fishing reaches 1,000 balboas, without prejudice to criminal liability. In the sources we checked, we did not find a specific Panamanian rule on retention or release for sport anglers.
This is not catch and release: it is release of an accidental catch. Keep the shark in the water and cut the line as close to the hook as possible. Don't lift it by the tail or take photos out of the water.
Catch and trade are banned in Brazil. In other countries it is used salted and dried (FishBase). Under the national list, release it.
Length-weight relationship W = a·Lb (a = 0.00525, b = 3.08; FishBase (relação peso-comprimento bayesiana, estimativa pelo gênero e formato do corpo)). It's an average: a fat or lean fish can vary by 10% to 20%.
estimated weight
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The seasonal weights (months), the time of day and the sensitivities (cold, pressure, moon, wind, rain, tide, strong light, murky water and noise) are the app's editorial estimates, based on the literature below and on field experience from anglers and guides. The water temperature range and the common size range are also editorial estimates, supported by FishBase. The months show when an angler usually finds the species, not a catch season. They are not official data or measurements made for this species, and they may vary by region and year. Legal rules appear in the rules section, with the norm and a link.
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