Lemon Shark

The Lemon Shark is a stocky, medium-to-large shark in the family Carcharhinidae, named for its yellowish-brown coloration that provides camouflage over sandy seafloor. It is found in coastal waters of the western Atlantic and eastern Pacific, frequenting shallow bays, mangrove shorelines, and coral reef habitats. Lemon Sharks are notable among sharks for their relatively well-studied social behavior, including forming loose social groups. They rely heavily on mangrove-lined shallows as nursery habitat during their early life stages, making healthy mangrove ecosystems important to the species' survival. As mid-sized coastal predators, they play a role in structuring nearshore fish and invertebrate communities.

• Body: stocky and robust with a broad, flattened head
• Color: yellowish-brown to olive above, paler below, providing camouflage on sandy bottoms
• Dorsal fins: two dorsal fins of nearly equal size, unusual among requiem sharks — a key identifying feature
• Snout: short and rounded
• Size: typically 2.4-3 m
• Look-alikes: other requiem sharks like Bull Sharks have a much smaller second dorsal fin relative to the first

Lemon Sharks inhabit shallow coastal waters of the western Atlantic, from the eastern United States through the Caribbean to Brazil, as well as the eastern Pacific coast. They favor shallow bays, sandy flats, coral reefs, and especially mangrove-fringed shorelines, which serve as critical nursery habitat for juveniles. Adults tend to move into slightly deeper coastal and reef waters but generally remain within the continental shelf rather than venturing into the open ocean. They tolerate a range of salinities and are commonly encountered in warm, shallow, structurally complex habitats.

Lemon Sharks display notable social behavior for a shark species, often forming loose aggregations and showing patterns of site fidelity, returning repeatedly to the same nursery and feeding areas. They are primarily nocturnal hunters, feeding on fish, crustaceans, and mollusks found near the seafloor and reef structure. Juveniles rely on mangrove shallows for protection from larger predators while they grow. Reproduction is viviparous, with females giving birth to live pups in shallow nursery habitats after a gestation period of roughly a year. Their strong nursery-ground fidelity makes coastal habitat protection especially important for the species.