Mahi mahi (Coryphaena hippurus), also known as dolphinfish, are among the most colorful and exciting fish to catch in Australian waters. Their iridescent hues of green, yellow, and blue, combined with their lightning-fast runs and acrobatic leaps, make them a favorite target for anglers. These fish are not only thrilling to catch but also prized for their delicious, firm white flesh. This guide explores everything you need to know about mahi mahi fishing in Australia, from understanding their habits to mastering the techniques and gear needed for success.
1. Understanding Mahi Mahi
Habitat and Distribution
Mahi mahi are pelagic fish that thrive in tropical and subtropical waters. In Australia, they are commonly found along the east and west coasts, where warm ocean currents bring them closer to shore. These fish are often associated with floating debris, seaweed patches, or man-made Fish Aggregating Devices (FADs). Their preference for surface structures makes them relatively easy to locate compared to other offshore species.
Behavior
Mahi mahi are opportunistic feeders and fast swimmers. They travel in schools and are known for their aggressive strikes on both artificial lures and natural bait. These fish are visual hunters, relying on their excellent eyesight to target prey. They can often be seen near the surface, chasing baitfish or swimming around FADs.
Diet
Their diet primarily consists of flying fish, sardines, squid, and crustaceans. Mimicking these prey species is key to selecting the right lures or bait.
2. Best Techniques for Catching Mahi Mahi
Trolling
Trolling is one of the most effective ways to cover large areas of water and locate mahi mahi schools.
•Lure Selection: Brightly colored skirts, feathers, or hardbody trolling lures are ideal. Popular colors include green, yellow, pink, and blue.
•Speed: Maintain a trolling speed of 6–9 knots, adjusting based on lure action and conditions.
•Target Areas: Focus on areas around FADs, floating debris, or weed lines. If possible, use a fish finder to detect underwater activity.
•Pro Tip: Troll in zigzag patterns to cover more water and increase your chances of encountering fish.
Casting
When you spot mahi mahi near the surface or around structures, casting can be incredibly effective.
•Best Lures: Use poppers, stickbaits, or metal jigs to mimic fleeing prey.
•Technique: Cast past the fish and retrieve quickly, incorporating pauses to simulate erratic movement.
•Pro Tip: Use polarized sunglasses to locate schools of mahi mahi and improve casting accuracy.
Live Baiting
Live bait is highly effective, especially when fishing in areas with low activity.
•Bait Options: Slimy mackerel, pilchards, flying fish, and squid are excellent choices.
•Setup: Use a circle hook tied to a fluorocarbon leader for natural presentation.
•Pro Tip: Drifting live bait around FADs can be especially productive, as mahi mahi are drawn to the movement and scent of live prey.
Vertical Jigging
When mahi mahi are found deeper in the water column, vertical jigging can trigger aggressive strikes.
•Jigs: Brightly colored metal jigs weighing 60–150 grams work best.
•Technique: Drop the jig to the desired depth and retrieve it with a series of rapid jerks and pauses.
•Pro Tip: Use a fish finder to identify the depth at which the fish are holding and adjust your jigging accordingly.
Chumming
Chumming is an excellent way to attract mahi mahi to your boat and keep them nearby.
•Chum Material: Use small chunks of pilchards, tuna, or other oily fish.
•Technique: Maintain a steady chum line to create a feeding zone around your boat.
•Pro Tip: Combine chumming with live baiting or casting for maximum effectiveness.
3. Essential Gear for Mahi Mahi Fishing
Rods
For trolling or casting, medium-heavy rods with fast action are ideal.
•Specs: 6’6”–7’6” in length, medium-heavy power, fast action.
•Recommended Models: Favorite X1 Offshore, Shimano Terez.
Reels
Use spinning or overhead reels with a smooth drag system to handle the speed and power of mahi mahi.
•Specs: 5000–8000 size spinning reels or equivalent overhead reels.
•Recommended Models: Shimano Saragosa SW, Daiwa Saltist.
Line and Leader
•Mainline: 20–50 lb braided line for strength and casting distance.
•Leader: 30–80 lb fluorocarbon leader for abrasion resistance and low visibility.
Terminal Tackle
Stock up on circle hooks, swivels, and snap swivels to create strong and reliable rigs.
4. Best Locations for Mahi Mahi in Australia
Queensland
•Hotspots: Offshore waters near Gold Coast, Sunshine Coast, and Great Barrier Reef.
•Tips: Focus on FADs and weed lines during the summer months.
New South Wales
•Hotspots: Offshore waters near Sydney, Port Stephens, and Wollongong.
•Tips: Late spring to early autumn is the best time to target mahi mahi here.
Western Australia
•Hotspots: Exmouth, Broome, and areas along the northern coastline.
•Tips: Use live bait near floating debris for the best results.
5. Seasonal Insights
•Summer: Peak season, with mahi mahi actively feeding near the surface.
•Autumn: Still productive, but fish may move slightly deeper.
•Winter: Limited activity, best fishing found in northern regions.
6. Tips for Beginners
•Stay Mobile: If there’s no action within 15–20 minutes, move to another spot.
•Look for Signs: Birds diving, baitfish jumping, or floating debris are strong indicators of mahi mahi presence.
•Safety First: Always check weather conditions before heading offshore and carry the necessary safety equipment.
Conclusion
Mahi mahi fishing in Australia is a rewarding experience for anglers of all skill levels. By understanding their behavior, using the right techniques, and targeting prime locations, you can significantly increase your chances of success. Whether trolling, casting, or live baiting, mahi mahi offer a thrilling adventure and the potential for a memorable catch.
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