Redthroat Emperor

Habitat Distribution

• Native to Australia; found along the Great Barrier Reef coast from around Innisfail south to at least Sydney and Lord Howe Island on the east coast.
• On the west coast, range runs from south of Perth north to the Montebello Islands; WA and QLD populations are genetically distinct stocks.
• Reef-associated species living in 5–30 m of water; favours coral reefs with adjacent sandy and rubble flats, not open-water or estuarine environments.
• Occurrence records also exist from Torres Strait, Gulf of Carpentaria and the Northern Territory, though these populations are less well studied.

Key Locations

• Great Barrier Reef coast, QLD — the primary fishery, from Innisfail south through the Whitsundays and Capricorn Coast; the bulk of commercial and recreational catch comes from here.
• Capricorn-Bunker Group, southern GBR — consistently productive reef systems for recreational anglers targeting emperors on day trips.
• Montebello Islands, WA — remote but well-regarded reef fishing destination where redthroat emperor feature alongside other reef species.
• Central WA coast from Perth north — the southern extent of the WA range; fish are present but less concentrated than in tropical northern waters.

Specific Spots

• Sandy and rubble patches between coral bommies — this is where schools feed during daylight hours, picking over the bottom for invertebrates.
• Reef edges and drop-offs adjacent to open sand: fish use the reef as cover and move onto the flat to feed, so working the transition zone is productive.
• At night, schools move well out onto open sandy areas away from the reef structure — a key reason after-dark bottom fishing can be very effective.
• Depth of 5–30 m covers most productive ground; fish tend to concentrate shallower over inshore reefs and deeper on outer reef systems.