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Great Barracuda

Great Barracuda

Sphyraena Barracuda

Quick Facts

Scientific nameSphyraena Barracuda

Other namesBarracuda, Dingo-fish, Giant Barracuda, Giant Sea-pike, Short Barracuda, Small-eyed Barracuda, Striped Seapike

SizeUp to 2 m (6.56 ft)

WeightUp to 50 kg (110 lb)

FamilyBarracuda / Sphyraenidae

Distribution

Habitat & AU DistributionMangroves, estuaries, shallow/deep reefs, pelagic waters, oceanic islands

The Great Barracuda is one of the largest and most recognisable predatory fish on coral reefs, capable of reaching 2 metres long and weighing up to 50 kg.
In Australia, Great Barracuda are found across tropical and subtropical waters, from the Great Barrier Reef in Queensland to the reefs of Western Australia. They are a regular sight for divers at sites like the Cod Hole on Ribbon Reef.
This species has a vast range across the world’s warm oceans, from the coast of East Africa and the Red Sea all the way to the central Pacific. It is one of the most widely distributed large predatory fish in tropical waters.
Great Barracuda can be found from the surface down to about 110 metres, but they often patrol shallow coastal waters, reef edges and open water close to the coast.
The body is long, narrow and built for speed, with a pointed snout and a large jaw lined with sharp, fang-like teeth. The lower jaw juts out slightly beyond the upper one.
One of the most useful ways to recognise a Great Barracuda is by the scattered dark blotches along its lower sides. These spots are irregular in shape and vary from fish to fish, which means individual animals can actually be told apart by their markings.
Great Barracuda are active, fast-moving predators that feed mainly on fish. They are known to use short bursts of speed to chase down prey, and their jaws can deliver a powerful bite.
They mainly feed on fish, while also taking squid and crustaceans when the chance arises.
Adults tend to spend time alone or in loose groups, cruising reef edges and open water. Younger fish are more likely to gather in schools in sheltered coastal areas.
Like other barracudas, Great Barracuda are thought to gather in larger groups during the breeding season and move to specific spawning areas. The eggs and larvae drift with the currents before young fish settle into coastal habitats.
Great Barracuda have a reputation for curiosity. Divers report that they will hover nearby and watch, often holding position in the water for long periods. This behaviour can feel unsettling, though unprovoked attacks on people are rare.
Eating Great Barracuda carries a risk of ciguatera, a type of food poisoning caused by toxins that build up in large reef fish through the food chain. This is the main health concern associated with the species.

Species Interaction

Great Barracuda: Reef Hunter, Tackle Target and Safety Consideration

Recreational Fishing
Snorkelling & Diving
Human Safety
Ecosystem Role
Research & Rare Encounters

Great Barracuda are targeted by recreational anglers across northern and tropical Australian waters, prized for their aggressive strikes and powerful runs on light to medium tackle. They appear in national recreational fishing surveys alongside other reef and coastal species. In the Coral Sea Fishery they turn up as bycatch in line-sector operations, generally discarded rather than retained. Divers and snorkellers regularly encounter them on Indo-Pacific reefs, where their size and habit of holding still near structure make them one of the more striking reef fish to come across. Their reputation as a potential bite hazard means that giving large individuals space is widely recommended.

Species
Sustainability

Scientific Classification

Kingdom: Animalia
Phylum: Chordata
Class: Teleostei
Order: Carangaria incertae sedis
Family: Sphyraenidae
Genus: Sphyraena
Species: Sphyraena barracuda

Conservation Status

The Great Barracuda is listed as Least Concern by the IUCN, with a wide distribution across tropical and subtropical oceans, including Australian waters. The population is considered stable, and the species faces no major range-wide threats, though localised pressures from fishing and habitat degradation can affect reef populations.