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Species Directory

Red King Crab

Overview Seafood Science Resources
U.S. wild-caught red king crab is a smart seafood choice because it is sustainably managed and responsibly harvested under U.S. regulations.

Red King Crab

Paralithodes camtschaticus

Illustration of a red king crab with sharp spines all over, six legs, and claws. One claw is larger than the other. Credit: NOAA Fisheries/Jack Hornady
Also Known As
Alaska king crab, King crab

Quick Facts

Region
Alaska
Fish Watch. U.S. Seafood Facts Logo
Red king crab Red king crab. Credit: NOAA Fisheries

Red king crab. Credit: NOAA Fisheries

About the Species

Red king crab Red king crab. Credit: NOAA Fisheries

Red king crab. Credit: NOAA Fisheries

U.S. wild-caught red king crab is a smart seafood choice because it is sustainably managed and responsibly harvested under U.S. regulations.

Population Status Icon

Population

The Pribilof Islands, Norton Sound, and Bristol Bay stocks are not overfished. The Western Aleutian Islands population level is unknown, but management measures are in place.

Fishing Status Icon

Fishing Rate

The Pribilof Islands stock is closed to fishing. None of the stocks are subject to overfishing.

Habitat Impacts Icon

Habitat Impact

Habitat impacts from crab pots are minor because fishing occurs in areas of soft sediment, such as silt and mud, which are unlikely to be damaged by fishing gear.

Bycatch Icon

Bycatch

Regulations are in place to minimize bycatch.

Population Status

  • There are four stocks of red king crab: Bristol Bay, Pribilof Islands, Norton Sound, and Western Aleutian Islands. According to the most recent stock assessments:
    • The Bristol Bay stock is not overfished (2023 stock assessment) and not subject to overfishing based on 2023 catch data. Summary stock assessment information can be found on Stock SMART.
    • The Pribilof Islands stock is not overfished (2022 stock assessment) and not subject to overfishing based on 2023 catch data. Summary stock assessment information can be found on Stock SMART.
    • The Norton Sound stock is not overfished (2024 stock assessment) and not subject to overfishing based on 2023 catch data. Summary stock assessment information can be found on Stock SMART.
    • The Western Aleutian Islands stock is not subject to overfishing based on 2023 catch data, but data are insufficient to determine population status at this time (2017 stock assessment). Summary stock assessment information can be found on Stock SMART.

Appearance

  • Red king crabs are the largest of the commercially harvested crabs.
  • They range in color from brownish to bluish red and are covered in sharp spines.
  • They have three pairs of walking legs and one pair of claws.
  • Their claws are different shapes. One is a large, heavy-duty claw that is used for crushing prey, and the other smaller claw is used for more delicate handling of food items.
  • Determining the sex of red king crabs is easy. Males have a triangular abdominal flap and females have a rounded one. 

Biology

  • Red king crabs can grow to be very large, up to 24 pounds with a leg span of 5 feet. Males grow faster and larger than females.
  •  Female red king crabs reproduce once a year and release between 50,000 and 500,000 eggs.
  • Larvae hatch from eggs looking like tiny shrimp.
  • The larvae feed on phytoplankton and zooplankton for 2 to 3 months before metamorphosing into tiny crabs and settling on the ocean bottom.
  • Red king crabs can only grow by molting (shedding their old shell and growing a new one). 
  • After molting they are soft and vulnerable to predators until their new shell hardens.
  • Red king crabs eat almost anything they can find and crush with their claws.
  • Smaller crabs eat algae, small worms, small clams, and other small animals.
  • Larger crabs eat a much wider range of items including worms, clams, mussels, barnacles, crabs, fish, sea stars, sand dollars, and brittle stars.
  • Smaller crabs are eaten by a variety of groundfish, octopi, sea otters, and crabs, including other red king crabs.
  • Large red king crabs have few predators except right after molting. 

Where They Live

Range

  • In North American waters, red king crabs are found in the Bering Sea and Aleutian Islands, along the coast of the Gulf of Alaska, and south to British Columbia, Canada.

Habitat

  • Juveniles less than 2 years old live in shallow waters in complex habitats, such as shell hash, cobble, algae, and bryozoans (branching, coral-like invertebrates) to avoid being preyed upon by fish and other crabs.
  • Older juveniles form pods that travel together, mounding up during the day and feeding at night.
  • Pods can consist of tens of thousands of individual crabs and are likely an anti-predator strategy, similar to schooling in fish.
  • Mature animals move into deeper water (typically less than 650 feet along the continental shelf) to feed, and the females return to shallow waters to hatch their eggs.

Fishery Management

  • NOAA Fisheries, the North Pacific Fishery Management Council, and the Alaska Department of Fish and Game manage the red king crab fishery.
  • Managed under the Fishery Management Plan for Bering Sea/Aleutian Islands King and Tanner Crabs, which defers management of crab fisheries to the State of Alaska with federal oversight. State regulations must comply with the fishery management plan, the national standards of the Magnuson-Stevens Act, and other applicable federal laws:
    • The red king crab fishery is currently managed according to the “three S’s”—size, sex, and season. Only male crabs of a certain size may be harvested, and fishing is not allowed during mating and molting periods. These measures help ensure that crabs are able to reproduce and replace the ones that are harvested. Fishermen must install escape panels and rings on their pots to prevent ghost fishing (when lost pots continue to capture and kill species) and to reduce bycatch.
    • Every year, managers set the harvest limit for the next fishing season using the most recent estimates of crab abundance. Managers allocate shares of the harvest among harvesters, processors, and coastal communities through the crab rationalization program, which was implemented in 2005 to address economic, safety, and environmental issues in the fishery. This program includes a community development quota, which protects community interests by allowing community groups a percentage of the harvest. They’re given the opportunity to purchase shares in the fishery before the shares are offered for sale outside the community. Vessels carry vessel monitoring systems (satellite communications systems used to monitor fishing activities) and must report their landings electronically.
    • Managers monitor catch in real time and are able to close the fishery when the harvest limit is reached.
    • Observers are required on 20 percent of the vessels in the fishery. They collect data on catch and bycatch and document any violations of fishing regulations.
    • Fishing has been closed for red king crab in the Pribilof Islands and Western Aleutian Islands for many years.

Harvest

  • In 2023, commercial landings of all king crab in Alaska totaled 9 million pounds and were valued at $96 million, according to the NOAA Fisheries commercial fishing landings database.
  • Red king crab are mainly harvested in Bristol Bay. Some catch also comes from fisheries in Norton Sound.
  • Gear types, habitat impacts, and bycatch:
    • Mesh-covered pots that are 7 to 8 square feet are used to catch red king crab.
    • Only male crabs can legally be caught and sold.
    • Crab pots can unintentionally catch female crabs (which may not be harvested), males under the comm ercial size, and non-targeted crab species as well as a small number of other species including octopus, Pacific cod, Pacific halibut, other flatfish, sponges, coral, and sea stars.
    • Regulations require fishermen to install escape panels and rings on their pots to prevent ghost fishing (when lost pots continue to capture and kill species) and to reduce bycatch.
    • Habitat impacts from the red king crab fishery are minor because fishing occurs in areas of soft sediment such as silt and mud. Soft sediments are unlikely to be damaged by fishing gear. Crab pots are less damaging than mobile gear because they are stationary and contact a much smaller area of the seafloor.
  • Fishing has been closed for red king crab in the Pribilof Islands since 1999 to avoid bycatch of the overfished Pribilof Islands blue king crab. Fishing for the Bristol Bay stock was closed for the 2021/2022 and 2022/2023 fishing seasons because of a low abundance of mature females.

Scientific Classification

Kingdom Animalia
Phylum Arthropoda
Class Malacostraca
Order Decapoda
Family Lithodidae
Genus Paralithodes
Species camtschaticus

Last updated by NOAA Fisheries on 03/20/2025


Featured News

Red king crab against a black background Red king crab on the deck of a research vessel. Credit: NOAA Fisheries / Erin Fedewa
Feature Story

Genetic Diversity in Alaska Red King Crab May Provide Resilience to Climate Change

Alaska
Prow of ship with dense sea ice and sky in background. The research vessel Norseman II pushes carefully through the ice, maneuvering for open water. Credit: Gavin M Brady/NOAA Fisheries.
Feature Story

Some Fish and Crab May Shift Further North in Alaskan Waters Than Previously Predicted

Alaska
3d map of Alaska 3D render and imaging of topographic map of Alaska showing the Gulf of Alaska, Aleutian Islands and Bering Sea. Satellite images courtesy of NASA. Credit: Frank Ramspott
Feature Story

A Few Surprises in Alaska’s Marine Environment in 2024

Alaska
Offloading frozen Pacific cod from a catcher-processor vessel in Dutch Harbor, Alaska. Offloading frozen Pacific cod from a catcher-processor vessel in Dutch Harbor, Alaska. Credit: NOAA Fisheries / Paul Hillman.
Feature Story

Economic Snapshot Shows Alaska Seafood Industry Suffered $1.8 Billion Loss 2022–2023

Alaska
View More News

Related Species

Top view looking down illustration of a reddish orange Alaska snow crab. NOAA Fisheries text along back of body. Credit: NOAA Fisheries/Jack Hornady

Alaska Snow Crab

Seafood Facts

Fishwatch Logo

Is Red King Crab Sustainable?

U.S. wild-caught red king crab is a smart seafood choice because it is sustainably managed and responsibly harvested under U.S. regulations.

Environmental Impact Icon

Availability

Year-round, but generally harvested from October to January.

Feeds Icon

Source

U.S. wild-caught in Alaska.

Farming Methods Icon

Taste

Red king crab meat has a distinctive rich, sweet flavor and delicate texture.

Human Health Icon

Texture

Tender.

Human Health Icon

Color

White meat with pink accents.

Human Health Icon

Health Benefits

King crab is low in saturated fat and is a great source of protein, vitamin B12, phosphorus, zinc, copper, and selenium.

Nutrition Facts

Servings: 1; Serving Weight: 100 g (raw); Calories: 84; Protein: 18.29 g; Total Fat: 0.6 g; Total Saturated Fatty Acids: 0.090 g; Carbohydrate: 0 g; Total Sugars: 0 g; Total Dietary Fiber: 0 g; Cholesterol: 42 mg; Selenium: 36.4 mcg; Sodium: 836 mg

More Information

  • Sustainable Seafood
  • Sign Up for "Taste of the Tides" Newsletter

Crab Recipes

Looking for some ways to add crab into your rotation? If you need some cooking inspiration, browse these recipes for crab-stuffed acorn squash, crab and shrimp risotto, and more!

Read More
a quartered acorn squash hollowed out and stuffed with a grab mixture.

Last updated by NOAA Fisheries on 03/20/2025


Seafood News

Fish sitting on ice in a metal bowl. Fresh-caught taʻape on ice. Credit: Conservation International Hawaiʻi.
Podcast

Reducing Waste and Feeding Communities in Hawaiʻi with a Whole Fish Approach

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New England/Mid-Atlantic
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Southeast
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National
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Feature Story

AI Meets Aquaculture to Study Hawaiian Monk Seal Interactions With Net Pens

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A woman poses holding a fish while aboard a fishing vessel with fisherman and their catch separated into baskets in the background. Tonya Wick aboard a fishing vessel at sea in 1998. Photo courtesy of Tonya Wick
Feature Story

On Deck With Observer 0001—Looking Back 30 Years

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Science Overview

Image
Several red king crab on the ground among sticks, shells, and other ocean debris.
Red king crab

NOAA Fisheries conducts various research activities on the distribution and abundance of red king crab. The results of this research are used to inform management decisions for this species.

For detailed information about stock status, management, assessments, and resource trends, you can search for red king crab, and any other species of interest, using NOAA’s StockSMART web tool.

Red King Crab Research in Alaska

Each year NOAA’s Alaska Fisheries Science Center conducts bottom trawl surveys to assess the distribution and abundance of commercially important crab resources in the eastern Bering Sea. NOAA scientists also conduct laboratory research that provides data for the forecast abundance models that help us maintain sustainable fisheries.

Learn more about Alaska Crab research

Research & Data

2022 Alaska Fisheries Economic Status of the Gulf of Alaska, Bering Sea and Aleutian Islands King and Tanner Crab

This Fisheries Management Plan includes all species and fisheries for Alaska crab (red, blue, and brown king crab, Tanner crab, and snow crab). In-season management of these fisheries is provided by Alaska Department of Fish and Game in Kodiak.
June 05, 2023 - Assessments ,
Alaska

2021 Alaska Fisheries Economic Status of the Bering Sea and Aleutian Islands King and Tanner Crab

This Fisheries Management Plan includes all species and fisheries for Alaska crab (red, blue, and brown king crab, Tanner crab, and snow crab). In-season management of these fisheries is provided by Alaska Department of Fish and Game in Kodiak.
April 18, 2022 - Data ,
Alaska

2020 Alaska Crab Stock Assessment And Fishery Evaluation Report

This Fisheries Management Plan includes all species and fisheries for Alaska crab (red, blue, and brown king crab, Tanner crab, and snow crab). In-season management of these fisheries is provided by Alaska Department of Fish and Game in Kodiak.
March 08, 2022 - Assessments ,
Alaska

Story Map - 2019 Second Year of Record Low Sea Ice in the Bering Sea

Ecosystem Check-In
January 26, 2021 - Assessments ,
Alaska
View More

More Information

  • Alaska Shellfish Ocean Acidification and Climate Research
  • Alaska Shellfish Culture Research
  • Alaska Crab Stock Assessment and Fishery Evaluation Reports
  • Eastern Bering Sea Crab Distribution Data Map
  • Alaska Shellfish Assessment Program

Recent Science Blogs

Research

Tracking the Alaskan Red King Crab – Post 8

Research
Photo taken from a sail drone looking out to the ocean with buoys.
Research

Tracking the Alaskan Red King Crab - Post 7

Research
Orange sail drone being lifted out of the ocean with green hills in background.
Research

Tracking the Alaskan Red King Crab - Post 6

Research
ASAMM-Blog-CrabandSaildrone (2).JPG
View More

Last updated by NOAA Fisheries on 03/20/2025

Documents

Document

Draft 2024 Eastern Bering Sea Crab Technical Memorandum

This is a draft Technical Memo that includes preliminary results from the 2024 eastern Bering Sea…

Alaska
Document

Draft 2023 Eastern Bering Sea Crab Technical Memorandum

This is a draft Technical Memo that includes preliminary results from the 2023 eastern Bering Sea…

Alaska
Document

Draft 2022 Eastern Bering Sea Crab Technical Memorandum

This is a draft Technical Memo that includes preliminary results from the 2022 eastern Bering Sea…

Alaska
Document

Profiles of Fishing Communities of Alaska

In-depth profiles of the 196 Alaska communities most involved in Alaskan and North Pacific…

Alaska
More Documents

Data & Maps

Data

2022 Alaska Fisheries Economic Status of the Gulf of Alaska, Bering Sea and Aleutian Islands King and Tanner Crab

This Fisheries Management Plan includes all species and fisheries for Alaska crab (red, blue, and…

Alaska
Data

2021 Alaska Fisheries Economic Status of the Bering Sea and Aleutian Islands King and Tanner Crab

This Fisheries Management Plan includes all species and fisheries for Alaska crab (red, blue, and…

Alaska
Data

2020 Alaska Crab Stock Assessment And Fishery Evaluation Report

This Fisheries Management Plan includes all species and fisheries for Alaska crab (red, blue, and…

Alaska
Data

Story Map - 2019 Second Year of Record Low Sea Ice in the Bering Sea

Ecosystem Check-In

Alaska
More Data
More Maps

Research

Alaska Crab Stock Assessment and Fishery Evaluation Reports

Crab Stock Assessment and Fishery Evaluation Reports from 1998–2021.

Alaska

Alaska Shellfish Additional Research

Shellfish Assessment Research.

Alaska

Alaska Shellfish Reproduction Research

Shellfish Assessment Research.

Alaska

Alaska Shellfish Current Research

Shellfish Assessment Research.

Alaska
More Research

Last updated by NOAA Fisheries on 03/20/2025

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