Grindstone Ledge

Tackle & technique

Mahi-mahi

Mahi feed near the surface along weedlines, floating debris, buoys and current edges offshore, in water from the low 70s to the low 80s. Troll ballyhoo or small skirted lures along the weed, and when a school comes up behind the boat keep one hooked fish in the water while you pitch cut bait or jigs to the rest. Look for birds working over weed and flotsam.

Scup

Scup school over hard and mixed bottom, rock piles, mussel beds, piers and jetties, usually in 10 to 60 feet of water. Fish a high-low rig with small hooks and squid or clam strips on the bottom, and chum with clam to hold a school under the boat. If nothing bites within 15 minutes, move to the next piece of structure.

Atlantic bluefin tuna

Bluefin tuna follow schools of herring, mackerel, sand eels and menhaden over banks, ledges and shoals, mostly in the top 150 feet. Troll spreader bars and daisy chains to find fish, then switch to live bait, chunks or stick baits once a school is located. Heavy tackle and a NOAA HMS permit are required, and size-class limits change through the season.