Blueline Tilefish
Identification
Blueline tilefish have an elongated, somewhat flattened body with a grayish-olive back and a distinctive blue line running beneath the eye. The belly is lighter, often whitish or pinkish. They have a moderately large mouth and a fleshy appendage on the lower jaw. Blueline tilefish typically run 3 to 8 pounds off the OBX, with larger fish reaching 15+ pounds. Their flesh is firm, white, and excellent eating — similar in quality to golden tilefish but milder.
Habitat and Behavior
Blueline tilefish prefer mud and clay bottom along the continental shelf edge and slope in 200 to 500 feet of water. Unlike golden tilefish, which prefer flat muddy bottom, blueline tilefish are often found on harder bottom, ledges, and dropoffs in the same depth range. They live in burrows in the bottom substrate and feed on small fish, squid, shrimp, and other bottom-dwelling organisms. Blueline tilefish are relatively sedentary, remaining in their burrow areas rather than ranging widely.
Fishing Techniques
Deep-drop bottom fishing with electric reels is the standard technique for blueline tilefish. A typical deep-drop rig uses a 1-3 pound lead weight at the bottom, with 2-3 leaders and circle hooks (4/0 to 6/0) above. The rig is lowered to the bottom and fished stationary while the boat drifts slowly over productive bottom. Multi-hook chicken rigs with 3-5 hooks increase catch rates when fish are concentrated. Heavy hand-crank gear (Penn 50W, 65-80 lb braid) works for anglers without electric reels but is physically demanding at these depths.
Baits and Lures
Cut squid is the premier blueline tilefish bait — easy to rig, stays on the hook during the long descent, and tilefish love it. Sardine chunks and cut bait strips (menhaden, bonito) also produce. Small live baitfish, when available, can trigger strikes from larger fish. The key is presenting baits directly on the bottom and keeping them there. Squid strips on every hook of a chicken rig maximize catch rates.
Best Times and Locations on the OBX
Blueline tilefish are available year-round in deep water but are most commonly targeted May through October when weather permits long offshore runs. They are found along the continental shelf edge in 200-500 feet of water, typically 35-55 miles offshore from Oregon Inlet and Hatteras Inlet. Mud and clay bottom areas along the 40-50 fathom curve are prime blueline habitat. Deep-water ledges and dropoffs along the shelf edge concentrate these fish. Specialized deep-drop trips from Hatteras often combine blueline and golden tilefish with snowy grouper.
Regulations
Blueline tilefish are managed under the South Atlantic Fishery Management Council. The minimum size is 12 inches total length. The recreational bag limit has varied in recent years due to stock assessments and may be subject to annual catch limits — check current NOAA Fisheries and SAFMC regulations. Seasonal closures may apply. The commercial fishery is quota-managed with trip limits. Because regulations for deep-water species change frequently, always verify current rules before fishing.