Coral Trout
ReefCoral trout are the iconic red reef predator of northern WA — caught from Coral Bay and Exmouth (the southern edge of the fishery) up through the Pilbara and Kimberley, not in Perth metro. They hold tight to coral bommies and ledges, ambushing baitfish from cover.
Overview
Coral trout are an ambush predator of the tropical reef — bright red, occasionally blue-spotted, and built to launch out of the coral and crash a bait before retreating to cover. In WA they're a Gascoyne and North Coast species, with Ningaloo (Coral Bay and Exmouth) the southern limit of any reliable recreational fishery. South of there they're a rarity. Numbers improve as you push north into the Pilbara and Kimberley, where they're a mainstay of any reef trip. The bag limit is small because trout are slow to mature and hold tight territories.
Identification
Trout, common coral trout, leopard coral grouper
A long-bodied red grouper covered in small blue spots, each ringed slightly darker, over a base colour that shifts from brick red to olive-brown depending on depth and mood. Big mouth, prominent canines, and a squared tail with a thin pale margin. Bar-cheek coral trout carry longer, more elongate spots, especially across the head. Coronation trout have a crescent tail with a broad yellow edge. The cods — rankin cod and the Epinephelus group — are heavier-bodied and blotchy with rounded tails and no blue spots at all. Despite the name there is nothing trout about it; up north everyone just says trout.
How to Catch
Live mullet, live yakkas, fresh squid, whole pilchards, butterflied mackerel
Soft plastics on 1–2oz jigheads, slow-pitch jigs (60–150g), deep-diving hard-bodies trolled across the reef edge
Paternoster rig with two droppers and a 60–80lb mono leader, 6/0 circle hooks, enough lead to reach bottom in current. For lure work, a single jighead or assist-rigged jig on 50lb leader. Trout bury into coral on the strike, so heavy line and immediate lift off the bottom are essential.
Drift over reef ledges and bommies in 15–40m, dropping baits or jigs to within a metre of structure. The strike comes fast — lift hard the moment you feel weight or you'll lose the fish into coral. Trolling deep-divers along the back of the reef produces fish too, especially around tide changes. Move on if you don't get a bite within ten minutes; trout are territorial and either present or not.
April through November is the most pleasant season at Ningaloo, when winds drop and water clarity is best. Tide changes drive the bite, particularly the start of the run-in. Early morning and late afternoon produce more quality fish than middle of the day.
Up to 12kg, commonly 1.5–4kg
Year-round (Pilbara/Kimberley); Apr–Nov (Ningaloo)
Size & Growth
Most WA coral trout are 40–60 cm and 1.5–4 kg. A good fish is 3–5 kg, and anything over 6 kg is a genuinely big trout that will be the photo of the trip. Twelve kilos is the headline maximum and not something to plan around. They are slow-growing and long-lived — well over a decade — and they change sex as they age, starting as females and turning male at larger size, so the biggest fish on a reef are the males. Take the largest fish off a bommie repeatedly and the local population notices, which is why the bag limit is one.
Diet & Habitat
An ambush piscivore: fusiliers, damselfish, small reef fish and the occasional crustacean, taken with a short explosive launch out of cover. Coral trout hold tight to bommies, ledges, coral heads and reef edges in 5–50 m, and they are territorial with a small home range — a spot either holds one or it does not. In WA this is a Gascoyne and North Coast species. Ningaloo, meaning Coral Bay and Exmouth, is the practical southern limit of the fishery; south of there they are a curiosity. Numbers improve as you push north into the Pilbara and the Kimberley reefs.
WA Size & Bag Limits
| Minimum size | 45 cm |
|---|---|
| Bag limit | 1 |
| Counts toward | Counts within the demersal scalefish mixed daily bag for the relevant bioregion. |
Bag limit: 1 (counts within the demersal mixed bag in the relevant bioregion). Minimum size: 45cm. Possession limit applies.
Eating Quality
Yes — among the best table fish in Australian waters: sweet, white, fine-flaked flesh with very little oil and a texture that holds together no matter what you do to it. Fillet skin-on, ice immediately, and keep it simple — pan-fried in butter, steamed whole Chinese-style with ginger and shallots, or sliced raw while it is genuinely fresh. Size makes little difference; a 2 kg trout eats as well as a 5 kg one, and the small ones are easier to cook whole. Tropical reef fish carry a small ciguatera risk, but WA coral trout are considered low-risk. It freezes acceptably vac-sealed for a month or two, though freezing costs you exactly the fine texture that made it worth catching.
Perth Tips
Coral Bay and Exmouth charters target trout on the back reefs, often combined with red emperor or spangled emperor sessions. Land-based shots from Bundegi or the Mildura Wreck are possible but rare. Newcomers lose fish by being too gentle on the strike — coral trout fishing is a power-lift exercise, not a finesse game.