How to Catch Mahi Mahi in South Florida

Mahi mahi, dolphin or dorado, are one of the most popular offshore targets in South Florida, and for good reason. They fight hard, run in schools, and taste as good as anything you'll pull out of the Gulf Stream. But "run offshore and troll around" only gets you so far. Here's what actually goes into consistently finding and catching mahi off Jupiter and the surrounding coast.

Find the Structure, Follow the Birds

Mahi don't spread evenly across the ocean, they concentrate around anything floating. Weed lines, current edges, debris, or any other structure you can find. A defined weed line beats scattered patches of grass every time, and floating debris with visible bait activity underneath it is often better than an empty piece of structure that looks promising but isn't holding anything. Look for flying fish and other bait fish.

Birds are your other big clue. Frigate birds and terns working an area are usually keying in on the same bait mahi are feeding on. If you see diving birds, it's worth a look even if there's no obvious structure underneath them.

Depth and Location

Off Jupiter, mahi are typically found from a few hundred feet of water out past a thousand feet, with the better, more consistent action often showing up in the deeper water, especially later in the season when the shallower water has been picked over. Don't assume a fixed depth guarantees fish though, conditions shift fast with the Gulf Stream, and a spot that produced yesterday can be empty today if the current's moved.

Trolling Setup

For my own spread, I like to use a resin head skirted lure rigged over a ballyhoo. The resin head gives it a harder, more consistent action than a soft skirt alone, and pairing it with the ballyhoo adds scent and a natural profile.

Troll at varying distances behind the boat covers water efficiently while you search for structure.   Once you find a weed line or debris holding fish, slow down and work it thoroughly rather than trolling straight through, mahi will often sit right on the edge of structure and you can miss fish by not covering the area methodically.

Bright colors, blue/white, green/yellow, pink, tend to be popular choices, and lure action matters as much as color. A lure that's kicking and darting at trolling speed draws more strikes than one just being dragged in a straight line. 

Find One, Find All

Mahi school, and where there's one, there are usually more. As soon as you hook up, especially on a smaller fish, keep it in the water near the boat rather than immediately gaffing it. It'll often draw the rest of the school right up to the transom, where you can pitch bait or jigs and load the boat instead of leaving after a single fish.

Best Time of Year

Mahi are a warm-water species and South Florida's season runs strong through spring, summer, and into fall, with the bite generally holding up well through the warmer months before tapering as water temperatures drop. Early morning starts help you beat the boat traffic to productive structure, but mahi will bite throughout the day once you're on fish.

Gear Notes

Standard 20-30 lb class trolling gear handles the vast majority of mahi you'll encounter. Bigger bull dolphin can test light tackle, but you don't need to go heavy, mahi aren't leader-shy the way some other pelagics are, and a straightforward monofilament or fluorocarbon leader is usually all you need.

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