Barracudas in Hawaii
Barracudas are long, sleek predatory fish found in tropical and subtropical oceans around the world. They have narrow silver-gray bodies, pointed jaws and sharp teeth. Their shape helps them move quickly when they strike at smaller fish.
In Hawaii, the Great Barracuda is called kaku. In some parts of the world, Great Barracudas can grow up to about 6 feet long. In Hawaiian waters, they are often smaller, commonly around 3 feet long.
How Barracudas Hunt
Barracudas often wait almost still in the water, watching for prey. Then they move fast when the moment is right. Snorkelers and divers may see them near reefs, rocky shorelines, channels, harbors and shallow coastal waters.
They may look intimidating because of their teeth, but barracudas are not usually aggressive toward people. Most encounters are quiet. The fish may watch from a distance, hold still for a while or slowly swim away.
Safe Viewing Tips
Attacks on people are very rare in Hawaii. Two recorded incidents happened in the 1960s, both involving Maui fishermen. To stay safe, do not feed barracudas, do not try to touch them and avoid swimming near speared or bleeding fish. It is also best not to wear shiny jewelry in the water, since flashes of light can attract curious predatory fish.
Barracudas play an important role as reef predators. They help keep the marine food web in balance by feeding on smaller fish. Related Hawaii marine life pages include the Hawaii fish guide, jacks, groupers, Hawaii sharks and Hawaii snorkeling.