Lemon shark facts, habitat and behaviour
The lemon shark (Negaprion brevirostris) is a gentle giant of warm coastal waters, recognised by its yellow-brown skin and blunt snout.
Growing up to 3.5 metres long, it’s often found near reefs and mangroves, fascinating divers with its calm nature and striking lemon-coloured glow beneath the surface.
Lemon shark (Negaprion brevirostris) details
What is a lemon shark and where does it live?
The lemon shark (Negaprion brevirostris) is a large coastal shark found in tropical and subtropical waters of the Atlantic Ocean, the Caribbean Sea, and parts of the eastern Pacific.
It is easily recognised by its light yellow-brown colouring, which provides perfect camouflage in sandy, shallow environments.
Lemon sharks prefer warm coastal lagoons, mangroves, and coral reefs, where they often rest on the seabed in groups, a behaviour rarely seen in other shark species other than whitetip sharks.
Why is the lemon shark called that?
The lemon shark gets its name from its distinctive yellowish hue, which helps it blend into the sunlit sands of the sea floor.
This subtle colouration makes it almost invisible to both prey and predators. While the name might sound harmless, the lemon shark is a strong and efficient hunter that plays an important role in keeping coastal ecosystems balanced.
How big do lemon sharks grow?
Adult lemon sharks typically reach between 2.5 and 3.5 metres in length and can weigh up to 180 kilograms.
They have a broad, flat head and two equally sized dorsal fins, a feature that makes them instantly recognisable. Although they look powerful, lemon sharks are surprisingly calm and are often seen swimming slowly in small groups, especially during the day.
What do lemon sharks eat?
The lemon shark’s diet consists mainly of bony fish, rays, and small crustaceans.
Like most sharks, they are opportunistic feeders, using electroreceptors in their snouts to detect prey hidden beneath the sand.
At night, they become more active hunters, patrolling shallow reefs and mangrove channels. This feeding behaviour helps maintain a balanced marine ecosystem by preventing any single species from dominating.
Are lemon sharks dangerous to humans?
Lemon sharks are considered one of the least aggressive large shark species. They are generally tolerant of divers and often appear curious rather than threatening.
Encounters are common in places like the Bahamas, Florida, and Belize, where divers can observe them in clear, shallow water. Most lemon sharks are used to the presence of humans, and diving with them under professional guidance is considered safe and highly rewarding.
Why are lemon sharks important to the ocean?
As apex predators, lemon sharks play a crucial ecological role in maintaining the balance of coastal and reef ecosystems.
They control populations of smaller fish and help prevent overgrazing of seagrass beds and coral. Scientists also study lemon sharks extensively because they adapt well to research in controlled environments, providing valuable insights into shark behaviour, reproduction, and learning ability.
Protecting lemon sharks supports healthier coastal waters and richer biodiversity.
Where can you dive with lemon sharks?
The best diving destinations to see lemon sharks include the Bahamas, Jupiter in Florida, and other parts of the Caribbean.
In these locations, divers can watch them gliding gracefully over sandy seabeds or circling around reefs. Shark-friendly operators focus on conservation and education, giving divers the chance to experience these fascinating creatures up close while contributing to their protection.