Short answer: yes, there are wahoo in Australia. Plenty of blokes have caught them without even meaning to.
They turn up as a "what the hell was that" bust-off when you're trolling for tuna or marlin. One second your skirt is swimming nice, the next your line's been sheared clean off and the reel's screaming. That's usually a wahoo.
What is a wahoo, and where do you find them?
Wahoo (Acanthocybium solandri) are a pelagic member of the mackerel family. Think of a Spanish mackerel that went to the gym and learned to swim at highway speeds. Long, slim, silver body with vertical bluish bars, and a mouth full of razor teeth.
They're found in tropical and subtropical waters worldwide, and that includes a fair chunk of the Australian coast. Anywhere the warm current pushes in, wahoo can be there.
The hot zones in Australia:
- North-west WA and the North West Shelf — probably the most consistent wahoo water in the country, around the shelf, reefs and rubble grounds.
- Queensland — the reef edges and offshore grounds off Cairns, Townsville, the Whitsundays and down to the Gold Coast.
- Northern NSW — they push down with the warm East Australian Current in summer and autumn, often as far as the Coffs and Sydney canyons in a good warm year.
- NT and the top end reefs — anywhere with structure and current.
The common thread is structure and current. Wahoo love a current line, a temperature break, a bommie, a reef edge, or a FAD. Anywhere bait stacks up and the water's moving, they'll patrol it looking for a feed.
When to target them
Wahoo are warm-water fish, so the play is the warmer months. In NSW that means summer through autumn when the EAC is at its strongest and pushing 23 degrees plus down the coast. Further north in QLD and WA the season runs longer, with the build-up and warmer months firing best.
Water temperature is the big tell. Find the warm water and the current edges and you're in the game. A sharp temp break or a colour change on the surface is exactly the sort of feature worth running lures along.
They feed hard around dawn and dusk like most pelagics, but wahoo will also chew through the middle of the day, especially when there's bait around and the current's running.
How anglers actually catch them
Most wahoo come from high-speed trolling. These are fast fish and they respond to a fast-moving lure. A lot of crews who deliberately target wahoo will troll quicker than they would for marlin, sometimes 10 to 14 knots, dragging heavy bullet-head skirts and deep-diving minnows that hold at speed.
The other common way is incidental — you're trolling skirts or swimming baits for tuna and billfish at a more normal 6 to 8 knots and a wahoo eats one. That happens a lot. The same techniques we cover in our guide to the best marlin and offshore trolling lures will pick up wahoo as a very welcome bycatch.
Wahoo also get caught on:
- Casting and high-speed spinning over bait schools or near surface action, using metal slugs wound back flat out.
- Deep jigging around reef edges and pinnacles.
- Live baiting and floating baits on the drift near structure, the same way you'd target Spanish mackerel.
The teeth problem: use wire
Here's the bit that catches people out. Wahoo have a mouth full of blade-like teeth and they'll cut straight through mono or fluorocarbon leader without slowing down.
If you're specifically chasing them, run a short length of single-strand wire trace (around 30 to 60 lb) ahead of the lure. It costs you a few bites from shy fish but it stops the heartbreak bust-offs.
If you're trolling skirts for billfish and don't want wire spooking your marlin, the trade-off is you'll lose the odd wahoo. Plenty of crews run a heavy mono bite leader as a compromise. It still gets cut sometimes, but it handles the smaller fish.
Gear
You don't need anything wahoo-specific if you're already set up for offshore pelagics. A standard trolling outfit covers it.
- Rod and reel: a 15 to 24 kg overhead trolling outfit, or a heavy spin setup in the 8000 to 14000 size for casting and spinning.
- Line: 24 to 37 kg braid or mono, depending on the outfit.
- Leader: heavy mono or fluoro (60 to 130 lb) with that short single-strand wire bite trace if you're targeting them.
- Lures: bullet-head and jet-head skirts in the 6 to 9 inch range, deep-diving hard-bodied minnows rated to troll at speed, and heavy chrome slugs for spinning. Purple/black, pink, and blue/silver are all proven colours.
A good drag that runs smooth is worth more than raw power here. Wahoo make blistering first runs and a jerky drag pops leaders.
Tips and common mistakes
- Speed up. If you're getting bites but missing hook-ups, troll faster. Wahoo expect their food to be moving quick.
- Don't skimp on the bite trace. One sheared leader and you'll wish you'd run wire.
- Mind your hands at the boat. Those teeth are no joke. Get them in the boat with a gaff, control the head, and keep fingers clear. A green wahoo thrashing on the deck is genuinely dangerous.
- Bleed and ice them straight away. Wahoo are one of the best-eating fish in the ocean — clean white flesh that's superb on the grill or as sashimi — but only if you look after it. Bleed it, get it on ice, and don't let it cook in the sun.
The same warm current and bait schools that hold wahoo will hold tuna, so it's worth knowing both. If you want to make the most of a day on the current line, our guide on how to catch yellowfin tuna pairs well with this one, and there's plenty of crossover in the offshore approach covered in big baits, big bills.
As always, check your state's current size and bag limits before you keep anything.
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The short version
Yes, wahoo are very much an Australian fish. Find warm water, current and structure in the warmer months, troll a bit faster than usual, run wire ahead of the lure, and look after the fillets. They're fast, they're spectacular, and they're some of the best eating you'll ever pull out of blue water.