Bluefin Tuna
Fishing
Cape Cod's Ultimate Offshore Challenge
The Apex Predator of the Atlantic
Atlantic bluefin tuna (Thunnus thynnus) are the largest and most powerful gamefish in the Atlantic Ocean. Built like torpedoes and capable of bursts over 40 miles per hour, they are the apex predator of the pelagic world — and Cape Cod sits at the center of one of the finest bluefin tuna fisheries on Earth.
The fish we target range from "school" bluefin measuring 27 to 47 inches, to chunky "footballs" between 47 and 59 inches, all the way up to true giants — fish over 73 inches that regularly exceed 500 pounds and occasionally top 1,000. Every season, Bloodline puts anglers on fish across the entire size spectrum, and the possibility of hooking into a true giant is what keeps us running offshore day after day.
What makes this fishery exceptional is geography. Warm eddies spinning off the Gulf Stream push north of Martha's Vineyard, colliding with the cool, nutrient-dense water flowing off Stellwagen Bank and the Great South Channel. That collision zone concentrates baitfish — herring, sand eels, squid — and the bluefin follow. A 600-pound fish can strip 300 yards of 130-pound braid in a single run. There is nothing in sportfishing that compares.
Where We Find Them
Our primary tuna grounds lie south of Martha's Vineyard, where warm Gulf Stream eddies push northward and create temperature breaks that concentrate bait and predators alike. When conditions align — clean, 68-to-72-degree water stacking up against cooler inshore currents — the bite can be wide open, with fish crashing bait on the surface as far as you can see.
As summer progresses into fall, the Stellwagen Bank area north of Cape Cod becomes increasingly productive. Massive schools of herring and sand eels draw bluefin into shallower water, and some of the best fishing of the year happens in September and October when giants are feeding aggressively before their southward migration.
Departing from Falmouth Harbor puts us in an ideal position. We have a shorter run to the southern tuna grounds than boats launching from ports further up the Cape or out of Boston, which means more time on the fish and less time in transit. We read the water daily — satellite imagery, sea surface temperatures, bait reports — and go where the fish are.
Regulations
Bluefin tuna are heavily managed by NOAA Fisheries, and the rules change throughout the season based on quota. Here is the general framework. Always confirm current regulations before your trip:
- Under 73 inches: Recreational anglers may retain fish, subject to current NOAA recreational quotas and daily bag limits. Check the NOAA HMS website for the latest updates before each trip.
- Giants (73 inches and over): Cannot be kept on a recreational permit. In June, harvest is allowed any day under our general category permit and the fish is sold at market. July through December, harvest is restricted to Sunday, Monday, Wednesday, and Thursday only. All other days are catch-and-release.
What to Expect
Bluefin tuna trips are full-day affairs. We depart early in the morning — typically around 5:00 AM — and run offshore to wherever the bite is setting up. Plan on a 10-hour day from dock to dock, though we will stay longer if the fish are chewing and conditions allow.
We use every technique in the book depending on what the fish want: chunking with cut butterfish or herring to draw fish into a slick, trolling spreader bars and cedar plugs to cover ground, and live-baiting with pogies when the giants are in close. When a bluefin hits, everything changes. Fighting one of these fish is a team effort — the angler is in the chair, the mate is clearing lines, and the captain is maneuvering the boat. Fights can last anywhere from 20 minutes on school fish to well over an hour on a true giant.
10 Hours
6
All Provided
Under 3 ft
Offshore trips are weather-dependent. We require seas under 3 feet and winds below 15 knots for safe, productive tuna fishing. If conditions are marginal, we will call you the evening before.
Season
The bluefin tuna season off Cape Cod runs from June 1 through December 10, with peak fishing from July through October. The character of the fishery shifts as the season progresses:
Early Season — June
School-size bluefin are most common as the fish arrive from their spawning grounds in the Gulf of Mexico. Giants begin showing up later in the month. Water temperatures are still climbing and the bite can be inconsistent, but when it turns on, the action is fast.
Peak Season — July through September
This is prime time. Giants are established on the grounds, bait is thick, and water temperatures are ideal. July and August produce some of the biggest fish of the year. This is when you want to be on the water if a giant bluefin is your goal.
Late Season — October through Early December
The fish feed aggressively before beginning their southward migration. Late-season fishing can be outstanding — the bluefin are packing on weight and hitting everything in sight. Weather windows become shorter, but the days we get out are often the most productive of the entire year.
Bluefin Tuna
$1,800 / Full Day
June 1 - December 10
Max 6
All Provided
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