About Tuna
Tuna including Yellowfin, Bluefin, and Albacore are among the most powerful game fish in the ocean. They require heavy-duty tackle and specialized line for successful catches.
Primary Line Type: Heavy braided
Leader: 80-130 lb monofilament
IGFA Compliance
Deep Sea Requirements
Tuna fishing requires line that can handle extreme pressure, long runs, and abrasion from the fish's tail. Braided line provides the strength-to-diameter ratio needed to pack enough line on your reel for tuna's famous long runs.
Recommended Setup
- Main Line: 80-100 lb braided (500+ yards)
- Top Shot: 100-150 yards of 80 lb mono
- Leader: 10-15 feet of 100-130 lb mono or fluoro
Techniques
Trolling: Use 80-100 lb braid with heavy duty reels
Chunking: 60-80 lb braid with 80 lb fluoro leader
Live Bait: 50-80 lb braid with circle hooks
Line Strength by Technique
Guideline only. Tuna line classes are set by class rules where you are fishing them, so check your tournament or IGFA class before you spool up.
| Technique | Line Strength | Notes |
|---|---|---|
| Trolling | 50-130 lb | Class-dependent, skirted lures and ballyhoo |
| Jigging | 50-100 lb | Vertical, 20-100 m, heavy jigs |
| Spinning | 40-80 lb | Poppers and stickbaits on the surface |
| Bottom | 50-130 lb | Deep drops for bigger fish |
Tuna Line Failures to Expect
Chafe where the line meets the boat
Most tuna lost to line are lost at a chafed section: across the transom, on a downrigger cable, or where two lines cross on a turn. Weed through the first 20 feet after every fish and cut back anything rough.
Line volume, not line strength
A tuna that sounds takes line fast and a long way. A spool that looks full on the dock may not be enough, and the drag climbs as diameter comes off the spool. Match the reel's capacity to the depth you are fishing, not just to the fish's size.
Braid-to-leader connections under a long, steady load
Tuna fights load the connection continuously rather than in spikes. A knot that tests well on a one-off pull can creep and fail after minutes under tension, which is why these connections are worth practising and testing at home.
Key Considerations
- Class rules: where line class matters, the record or tournament class decides the line, not the fish.
- Leaders: fluoro leaders in the 60-130 lb range for trolling, heavier for structure and sharks.
- Visibility: offshore tuna are not leader-shy in the way bass or trout are. Strength and abrasion matter more than invisibility.
Seasonal Patterns
- Summer: warm-current edges and surface feeds. Spinning and light trolling.
- Fall: the best fishing in most temperate fisheries, with bigger fish on jigs deep.
- Winter: fish move deeper and further out. Heavier trolling gear and long soak times.
- Spring: mixed sizes on the first warm water. Start at 50 lb and adjust.
Find Your Tuna Setup
Set your technique and target size and the line calculator returns a starting class along with the products that match it.