Pacific Halibut

Pacific halibut are flatfish, both eyes on the right side of the body, with a diamond-shaped body that is much longer than it is wide compared to other flatfish. The skin is dark olive to brown on the eyed side, often with mottled blotches, and pure white on the blind side. The tail is slightly concave to nearly straight across the edge, not rounded.

The main lookalike is arrowtooth flounder, which shares the same waters and a similar diamond shape. Arrowtooth have a larger mouth with long, sharp teeth visible even with the jaw closed, and their flesh turns mushy when cooked, which halibut never does. Greenland halibut and other large flounders are another point of confusion, but those species have a more slender, elongated body and a deeply forked or notched tail, while Pacific halibut are broader and thicker through the middle with a squared-off tail. Size is also a clue: Pacific halibut regularly grow far larger than any of these lookalikes, with fish over 100 pounds common and the record well past 400.

Cold, deep saltwater along the North Pacific coast. Pacific halibut live on sand, mud, and gravel bottoms from nearshore shallows down to several hundred feet of water. They are most commonly targeted well offshore, over banks, ledges, and current-swept flats where baitfish gather.

The best fishing runs from the northern Pacific coast up through the coastal waters of the far Northwest and into Alaska, where the largest numbers and the biggest fish are found. Inshore fisheries exist in bays and sounds, but the trophy-class fish come from deeper offshore structure.

Halibut are ambush predators that lie flat on the bottom and wait. They eat herring, sand lance, cod, octopus, crab, and pretty much any smaller fish or invertebrate that swims or crawls within striking distance. Big halibut will also chase and eat salmon.

This is heavy gear fishing. Expect a stout boat rod, a conventional reel loaded with 60 to 100 pound braid, and enough lead or a heavy jig to hold bottom in strong current, often a pound or more of weight. A circle hook baited with a whole herring or a chunk of salmon belly, fished right on the seafloor, is the standard rig. Halibut jigs, heavy metal jigs worked just off bottom, also produce well and cut down on wasted bait.

Fish structure and current breaks where bait stacks up. Bites can feel like a soft thump or dead weight, so keep steady pressure and let the circle hook do its job rather than jerking to set it. Bringing a big halibut to the boat takes real muscle, and many charters use a gaff or tail rope for fish too large to net. Pacific halibut are managed with strict seasons, size limits, and bag limits that vary by region, so check current regulations before you go.