Wedgetail Tuskfish

Interesting Info

• The Wedgetail Tuskfish is a tropical wrasse found across northern Australia, from Western Australia’s Kimberley coast through the Northern Territory to Queensland and the Great Barrier Reef.
• Its range also extends through parts of the Indo-Pacific, though it is most closely associated with Australian waters where it is a recognised tuskfish species.
• They are named for their distinctive wedge-shaped caudal fin (tail) and the thick, protruding tusk-like teeth in their jaws, used for crushing hard-shelled prey.
• Colouration varies by age and sex: juveniles are mottled brown with pale blotches for camouflage, while adults are greenish to bluish with darker patches along the sides and tail.
• Males often show more vivid colour tones and stronger body markings, especially during the breeding season.
• Wedgetail Tuskfish feed mainly on hard-shelled invertebrates such as crabs, clams, gastropods, and sea urchins, which they crush using their powerful jaws and teeth.
• They are strong, solitary foragers, patrolling reef flats and rubble zones during the day in search of prey hidden in sand or under rocks.
• Like many wrasses, they are protogynous hermaphrodites, beginning life as females before some transition into dominant males.
• Spawning occurs in pairs or small groups, with eggs released into open water to drift with the currents until hatching.
• They are thought to live 10 years or more, although detailed lifespan studies are limited.
• They play an ecological role in breaking down shells and recycling calcium carbonate on reefs, contributing to the health of reef substrates.
• They are sometimes nicknamed “Wedgetail Parrot Wrasse” or simply “Tuskfish” by northern Australian divers and fishers.