Spotted Mackerel
Pelagic / Reef edgeA fast, spotted, schooling mackerel of WA's tropical north — smaller and quicker than the Spanish, with rows of bronze spots along silver flanks. Forms big, fast-moving surface schools over reefs and along current lines from the Gascoyne to the Kimberley. A blistering light-tackle target on metals and a fine eating fish when handled well.
Spotted mackerel (Scomberomorus munroi) are the speed merchants of WA's tropical mackerel scene — smaller than Spanish mackerel, faster, and marked with rows of bronze-to-grey spots along bright silver sides. They form large, fast-moving schools that work bait over reefs, shoals and current lines from the Gascoyne north through the Pilbara and into the Kimberley, frequently busting up on the surface in spectacular fashion. They're a brilliant light-tackle target: cast a metal into a feeding school and hold on for a blistering first run. They're also good eating when bled and iced promptly. Spotted mackerel are often found alongside shark and grey mackerel, school mackerel and tuna in the same productive water.
Whole gar or pilchard on a wire-trace gang, slimy mackerel, live yakka, fish strip baits
Chrome slugs and small metals (Halco Twisty 20–40g), small minnows and skirts trolled fast, slow-pitch jigs, small stickbaits
A light wire bite trace prevents the inevitable bite-offs — 30–40lb single-strand or coated wire, short, to a single hook or small stinger, under a 40–50lb mono leader for casting. Spotted mackerel are line-shy at times, so keep the wire short and the leader as light as you can get away with. Medium-light spin gear is ideal.
Sight-cast small metals and stickbaits into surface-busting schools with a fast retrieve — the faster the better. The strike is instant and the run is searing, so set a sensible drag. When nothing's showing, troll small skirts and minnows along reef edges and current lines to locate schools. Spotted mackerel respond to a fast, flashy presentation; downsize your metal if they're following but not committing.
Year-round in the tropical north, peaking in the warmer months; summer in the north-west when warm water and bait concentrate. Tide changes and current lines fire the schools up. Early morning and late afternoon are the standout windows; bright midday sun pushes them deeper.
Up to 1m and 10kg, commonly 1.5–4kg
Year-round (Pilbara/Kimberley); summer in the north-west
Good eating when bled and iced the moment it's landed — firm, tasty fillets that grill and smoke well. As with all mackerels, the flesh oxidises fast in tropical heat, so prompt bleeding and icing is essential. Larger northern fish carry a small ciguatera risk; mid-sized fish are the pick for the table.
Spotted mackerel (Scomberomorus munroi): minimum size 500mm, within the statewide large pelagic finfish mixed daily bag of 3 (shared with other mackerels, mahi mahi, wahoo, tuna and cobia). Always check current DPIRD rules — regulations may change.
Tantabiddi, the Mackerel and Montebello Islands, and the Pilbara reefs produce spotted mackerel in season, often in mixed mackerel schools. Run a short wire trace and downsize your metals — spotted mackerel love a small, fast lure. Bleed instantly. When a school comes up, cast fast and make the most of it; they don't stay on top for long.