Hero Species
Discover the wonders of marine life
The bluethroat wrasse is one of the most prolific species of reef fish inhabiting the eastern stretch of the Great Southern Reef. The bluethroat wrasse is one of the most prolific species of reef fish inhabiting the eastern stretch of the Great Southern Reef. Its range stretches from Port Lincoln, South Australia through to Newcastle, New South Wales and throughout the Tasmanian coastline. The species can be found from shallow rock pools right through to waters that are up to 160 meters deep and are most commonly found over kelp beds, rocky reef and areas with considerable benthic structure.
Did you know?
The bluethroat wrasse grows to around 50cm in length and can weigh up to 3kgs. Male bluethroat wrasse are typically larger than all females within a given area. Bluethroat wrasse are considered to have high site fidelity, meaning they live and stay within a set stretch of habitat. Within these areas there will be multitudes of Bluethroat wrasse at all stages of their 15-year life cycle.
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Male vs Female
Bluethroat wrasse populations consist of around 90% females and 10% males, this is because the Bluethroat wrasse is a protogynous hermaphrodite. To control their population density all Bluethroat wrasse are born female, and once the ratio of sexually mature females to males exceeds around 10-1 the largest female bluethroat wrasse will undergo a transition to become a dominant male.
transitioning fish
Bluethroat wrasse face many pressures from within their environment such as predation from marine mammals, sharks, and cephalopods. They are also a commercially targeted fishery, and are common by catch from recreational fishermen. It is their ability to transition into males based on the demand within their own habitat that has led them to become one of the most commonly encountered fish along the Great Southern Reef.
Human interaction with bluethroat wrasse
Bluethroat Wrasse and human interaction are extremely common. The species is often encountered by snorkellers and scuba divers. Its significant size and unique markings make it a hero species for all who encounter it, and its curious nature often further inspires curiosity and stewardship for the Great Southern Reef.
Different Stages of Life Activity
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Ecosystem Activity
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Colouring Activity
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