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Pacific Halibut ID card
Activity
Spearfishing
Rarity
Legendary
Primary biome
Protection status
Complex
Managed under an international quota (IPHC). California: April 1 to November 15 or until the quota is reached, 1 fish per day, spearfishing allowed (14 CCR 28.20). Oregon and Washington set seasons each spring; Washington allows only angling and spearfishing, 1 per day in Marine Area 10, 6 per year.
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Spearfishing Stats

Weapon of choice
A large speargun with a float line, for a flatfish that can weigh hundreds of pounds
Abundance
1 / 5

Santa Barbara to Nome, Alaska; most common in the central Gulf of Alaska (NOAA).

Find difficulty
5 / 5
Shot difficulty
3 / 5

Taxonomy

Phylum
Chordata
Class
Actinopterygii
Order
Pleuronectiformes
Family
Pleuronectidae
Genus / Species
Hippoglossus stenolepis
Family, common name
Righteye flounders

Rarity

Encounter rarity
Legendary
Abundance
1 / 5
Find difficulty
5 / 5
Rating area and season
Santa Barbara to Nome, Alaska; most common in the central Gulf of Alaska (NOAA).
Conservation status
Least Concern (2020)

Abundance rates how many are in suitable habitat. Find difficulty rates how hard it is to locate one on a daylight snorkel or freedive through 50 ft. A higher find score means a harder search. The rarity category also reflects the kind of encounter; it is not an average of the 2 scores.

Typical habitat
Many bottom types; young fish near shore, mainly off Alaska and British Columbia.
Dive-depth context
About 16 to 3,600 ft; usually 89 to 900 ft in summer, deeper in winter (WDFW).

Regulations

CDFW rules verified 2026-10-17

Size limit
None in California or in Washington's Marine Area 10
Bag limit
1 fish per day in California and in Washington's Marine Area 10. Oregon sets its limits each April
Seasonality
California is open April 1 through November 15, or until the quota is reached. Oregon and Washington set their seasons each spring, and they can change on short notice
Geographic constraints
Managed under a federal quota by the International Pacific Halibut Commission. California allows spearfishing for it, and a harpoon, gaff or net may help land a fish caught by angling. Oregon allows spears. Washington allows only hook-and-line angling and spearfishing, with an annual limit of 6 and only 1 daily limit aboard a boat. Check each state's current rules before fishing

Seasonality

Arrival
No fixed arrival established
Peak season
Summer, on shallower feeding grounds (NOAA).
Departure
No fixed departure established
Active-season abundance
1 / 5
Off-season period
Winter, when adults move deep to spawn.
Off-season presence
Adults move to deep winter spawning grounds.
Off-season abundance
1 / 5
Off-season rarity
legendary
Breeding season
Spawns in winter in deep water along the continental slope. A female releases 500,000 to 4 million eggs
Breeding-season aggression
None documented
Best season to target & why
Summer, when adults move up onto their shallower feeding grounds

Edibility

Meat type
— pending research
Difficulty to fillet
— pending research
Fillet quality
— pending research
Taste
— pending research
Eating quality
— pending research
Traditional preparations
— pending research

Location

Range
Santa Barbara, California to Nome, Alaska, and across the North Pacific to Japan. Most common in the central Gulf of Alaska
Habitat
Many kinds of bottom, usually from about 89 to 900 feet in summer and deeper in winter. Young fish live near shore
Biomes frequented
Sandy Flats biome

The Washington Department of Fish and Wildlife gives the full range as the Bering Sea to Point Camalu in northern Baja California, and FishBase extends it across the North Pacific to Japan. The Washington agency records halibut from about 16 to 3,600 feet. FishBase notes that young fish live near shore and move into deeper water as they grow, and NOAA Fisheries places those shallow nursery waters off Alaska and British Columbia. Adults spend summer on shallower feeding grounds and move deeper in winter to spawn.

Spearfishing Brief

Pacific halibut are managed under an international quota set by the International Pacific Halibut Commission, which the United States and Canada have used to manage the fish since 1923. Each state then sets its own season. California is open from April 1 to November 15, or until the quota is reached, with a limit of 1 fish per day and no size limit. Spearfishing is allowed, and a harpoon, gaff or net may be used to help land a fish caught by angling. Oregon allows spears and sets its limits and seasons each April, and they can change on short notice. Washington allows only hook-and-line angling and spearfishing, with a daily limit of 1 in Marine Area 10, an annual limit of 6, and only 1 daily limit aboard a boat. Check each state's current rules before fishing.

Finding one rates a 5. The fish live mostly deeper than divers go, and the shallow nursery grounds are farther north. Taking one rates a 3. It lies on the bottom like any flatfish, but it is a large and powerful animal, and no diver account was found in the sources reviewed for this page.

Deep Dive

NOAA Fisheries describes a flat, diamond-shaped fish, gray to dark brown on top, with both eyes on that side. It can grow longer than 8 feet and wider than 5 feet and weigh up to 500 pounds. The Washington state record is 288 pounds, caught at Swiftsure Bank in 1989. Most fish are far smaller. Oregon's 2024 sport catch averaged 18.6 pounds. The oldest halibut on record was 55 years old, though NOAA Fisheries notes that fish over 30 are rare.

It is a hunter. NOAA Fisheries lists groundfish, sculpins, sand lance, herring, crabs and clams among its prey. Adults are rarely eaten by other fish because of their size, though marine mammals and sharks sometimes take them.

Spawning happens in winter, in deep water along the continental slope. A female releases from 500,000 to 4 million eggs.

Where to Find Them

Researched habitat and range candidates

These locations have suitable habitat within the species range. An assignment is a possible encounter, not a confirmed sighting at every beach. Season, depth, and local conditions still matter. Historical habitat without present-day evidence is excluded.

Pacific Halibut — Ichthyopedia | Nautical Nick