On Australia’s Great Barrier Reef, what fish is also called the Queensland grouper?

The giant grouper is the fish also called the Queensland grouper on Australia’s Great Barrier Reef.

Its scientific name is Epinephelus lanceolatus, and it is the largest bony fish found in coral-reef habitats. Giant groupers live in coastal waters, around reefs, wrecks, caves, and other sheltered structures. Young fish can show striking markings that become less pronounced as they mature.

The name “Queensland grouper” reflects the species’ association with Australia’s tropical east coast, while “giant grouper” is the more widely used common name internationally. It is sometimes confused with the potato cod, another very large grouper found on the Great Barrier Reef, but the two are different species.

Giant groupers are generally solitary and ambush predators. Their diet includes fish, crustaceans, and other sizeable marine animals. Because they grow slowly and can be vulnerable to fishing pressure, conservation and catch regulations are important for maintaining their populations.