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Species Directory

Chinook Salmon

Overview Seafood Science Resources
U.S. wild-caught Chinook salmon is a smart seafood choice because it is sustainably managed and responsibly harvested under U.S. regulations. However, some Chinook salmon are also protected under the Endangered Species Act. Learn more about protected C

Chinook Salmon

Oncorhynchus tshawytscha

Side-profile illustration of a chinook salmon fish with blue-green back and black speckles on its upper half and tail fin. Chinook salmon are silver on the sides and have white bellies. Credit: NOAA Fisheries/Jack Hornady
Also Known As
King salmon, Spring salmon, Tyee, Winter, Quinnat, Blackmouth

Fishing Status

Not subject to overfishing.

Quick Facts

Region
Alaska, West Coast
Fish Watch. U.S. Seafood Facts Logo
School of adult chinook salmon Spring Chinook Salmon. Credit: Michael Humling, U.S. Fish & Wildlife Service

Spring Chinook Salmon. Credit: Michael Humling, U.S. Fish & Wildlife Service

About the Species

School of adult chinook salmon Spring Chinook Salmon. Credit: Michael Humling, U.S. Fish & Wildlife Service

Spring Chinook Salmon. Credit: Michael Humling, U.S. Fish & Wildlife Service

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

NOAA Fisheries works in cooperation with federal, state, tribal, and Canadian officials to manage these commercial, recreational, and tribal harvest of salmon and steelhead in ocean and inland waters of the West Coast and Alaska. To learn more about management of these fisheries, visit our West Coast and Alaska fisheries management pages.

However, some Chinook salmon are also protected under the Endangered Species Act. Learn more about protected Chinook salmon.

Appearance

  • When they’re in the ocean, Chinook salmon are blue-green on the back and top of the head with silvery sides and white bellies.
  • They have black spots on the upper half of the body and on both lobes of the tail fin.
  • Chinook salmon also have a black pigment along the gum line, thus the nickname "blackmouth."
  • In fresh water, when they are about to spawn, Chinook change to olive brown, red, or purplish. This color change is particularly evident in males.
  • Spawning adult males can be distinguished by their hooked upper jaw.
  • Females can be distinguished by a torpedo-shaped body, robust mid-section, and blunt nose.
  • Juveniles in fresh water (fry) have well-developed parr marks on their sides (the pattern of vertical bars and spots useful for camouflage).
  • Before juveniles migrate to the sea, they lose their parr marks and gain the dark back and light belly characteristic of fish living in open water.

Biology

  • Chinook salmon are anadromous—they hatch in freshwater streams and rivers then migrate out to the saltwater environment of the ocean to feed and grow.
  • Chinook salmon are the largest of the Pacific salmon, hence the name “king salmon.”
  • They can grow as long as 4.9 feet and up to 129 pounds, but typical length and weight of mature fish are about 3 feet and 30 pounds.
  • They spend a few years feeding in the ocean, then return to their natal streams or rivers to spawn, generally in summer or early fall.
  • Chinook salmon sexually mature between the ages of 2 and 7 but are typically 3 or 4 years old when they return to spawn.
  • Chinook dig out gravel nests (redds) on stream bottoms where they lay their eggs.
  • All Chinook salmon die after spawning.
  • Young Chinook salmon feed on terrestrial and aquatic insects, amphipods, and other crustaceans.
  • Older Chinook primarily feed on other fish.
  • Fish (such as whiting and mackerel) and birds eat juvenile Chinook salmon.
  • Marine mammals, such as orcas and sea lions, and sharks eat adult salmon.
  • Salmon are also primary prey for Southern Resident killer whales, an endangered species.
  • After salmon spawn and die, salmon carcasses are a valuable source of energy and nutrients to the river ecosystem. Carcasses have been shown to improve newly hatched salmon growth and survival by contributing nitrogen and phosphorous compounds to streams.

Where They Live

Range

  • In North America, Chinook salmon range from the Monterey Bay area of California to the Chukchi Sea area of Alaska. 

Habitat

  • Chinook salmon spend their early life growing and feeding in freshwater streams, estuaries, and associated wetlands.
  • They spend the remainder of their life foraging in the ocean before returning to the streams and tributaries where they were born to spawn.

Scientific Classification

Kingdom Animalia
Phylum Chordata
Class Actinopterygii
Order Salmoniformes
Family Salmonidae
Genus Oncorhynchus
Species tshawytscha

Last updated by NOAA Fisheries on 04/04/2025


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Related Species

Side-profile illustration of a big chum salmon fish with dark metallic bluish-green coloring and black speckles on its upper half and lighter, paler belly. Credit: NOAA Fisheries/Jack Hornady

Chum Salmon

Side-profile illustration of a big coho salmon fish with dark metallic blue back, silver sides, and a light belly. Small black spots are present on the upper lobe of the tail fin. Credit: NOAA Fisheries/Jack Hornady

Coho Salmon

Side-profile illustration of a pink salmon fish with white underside, silver and pink on the side, and green upper back with dark spots. Credit: NOAA Fisheries/Jack Hornady

Pink Salmon

Side-profile illustration of a silvery sockeye salmon fish with black speckles on its back. Credit: NOAA Fisheries/Jack Hornady

Sockeye Salmon

Seafood Facts

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Is Chinook Salmon Sustainable?

Although some Chinook populations are below target levels, U.S. wild-caught Chinook salmon is a smart seafood choice because they are sustainably managed with careful consideration given to impacts on endangered and threatened species.

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Availability

Fresh mainly in the summer and early fall, though the timing varies by area and fishery. Frozen year-round.

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Source

U.S. wild-caught from Alaska to California.

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Taste

Chinook salmon has a pronounced buttery, rich taste. They are the most highly prized salmon in the culinary world. White Chinook taste the same as the darker variety.

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Texture

Oily, flaky, and meaty.

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Color

The meat is almost always red, never pink, except for the rare white-meat variety.

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Health Benefits

Chinook salmon is low in sodium and is a good source of omega-3 fatty acids, protein, niacin, vitamin B12, and selenium.

Nutrition Facts

Servings: 1; Serving Weight: 100 g (raw); Calories: 179; Protein: 19.93 g; Total Fat: 10.43 g; Total Saturated Fatty Acids: 3.1 g; Carbohydrate: 0 g; Total Sugars: 0 g; Total Dietary Fiber: 0 g; Cholesterol: 50 mg; Selenium: 36.5 mcg; Sodium: 47 mg

More Information

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

Chinook Salmon Recipes

Chinook salmon is a prized sushi and sashimi meat. It has a bold, buttery flavor and is rich in omega 3. For cooking inspiration, browse these recipes for sushi cups, grilled salmon, and more!

Read More
rice, salmon, an orange dressing, and sliced chives arranged in a cup made out of dried seaweed sheets. the cups are arranged in three rows paced on white parchment paper.

Last updated by NOAA Fisheries on 04/04/2025


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Population Status

There are numerous stocks of Chinook salmon.

  • Alaska:
    • In Alaska, the status of Chinook salmon stocks varies.
    • Some stocks are in decline, while others are steady or increasing.
    • None are listed under the Endangered Species Act (ESA).
    • According to the 2022 stock assessment, the Eastern North Pacific Far North Migrating stock is not overfished and not subject to overfishing.  Summary stock assessment information can be found on Stock SMART.
  • West Coast:
    • The status of Chinook stocks in California and the Pacific Northwest varies.
    • Some stocks are in decline, while others are steady or increasing.
    • As of 2025, two populations of Chinook salmon are listed as endangered, and seven are listed as threatened under the ESA.
    • According to the 2024 stock assessment, the Klamath River Fall stock is overfished, but not subject to overfishing. According to the 2023 stock assessment, the Queets Spring/Summer stock is overfished, but the overfishing status is unknown. The remaining stocks are not overfished and not subject to overfishing.  Summary 2024 stock assessment information for all West Coast Chinook salmon stocks can be found on Stock SMART.
  • Populations are affected by:
    • Changes in ocean and climatic conditions.
    • Habitat loss from dam construction and urban development.
    • Degraded water quality from agricultural and logging practices.
  • Population conservation efforts include:
    • Captive-rearing in hatcheries.
    • Removal and modification of dams that obstruct salmon migration.
    • Restoration of degraded habitat.
    • Acquisition of key habitat.
    • Improvements to water quality and instream flow.
  • The Pacific Coastal Salmon Recovery Fund supports the restoration of salmon species.

Fishery Management

  • NOAA Fisheries and the Pacific Fishery Management Council manage Chinook salmon on the West Coast.
  • Managed under the Pacific Coast Salmon Plan:
    • Every year, the council reviews reports of the previous fishing season and current estimates of salmon abundance. Using this information, they make recommendations for management of the upcoming fishing season.
    • Their general goal is to allow fishermen to harvest the maximum amount of salmon that will support the fishery while preventing overharvest of the resource and ensuring that salmon populations with low abundance can rebuild.
    • Specific management measures vary year to year depending on current salmon abundance, and include size limits, season length, quotas, and gear restrictions.
    • Management of Chinook salmon must also comply with laws such as the Endangered Species Act. One of the threats to recovery of endangered Southern Resident killer whales on the West Coast is the availability of their preferred prey, Chinook salmon. Every year the fishery management council considers the prey needs of this endangered population before setting commercial fishing catch limits for Chinook. Read more
    • Final recommendations are implemented by NOAA Fisheries. Check here for the current season’s management. State and tribal managers use council management recommendations to shape their policies for inland fisheries, to ensure that conservation objectives are met.
    • A rebuilding plan to rebuild the Klamath River Fall Chinook stock to the target population level is in place with a target date of 2021.
  • NOAA Fisheries and the North Pacific Fishery Management Council manage Chinook salmon in Alaska. 
  • Managed under the Fishery Management Plan for Salmon Fisheries in the EEZ off the Coast of Alaska:
    • All management of the salmon fisheries in federal waters is delegated to the State of Alaska, which is also responsible for managing the commercial, recreational, and subsistence fisheries for salmon in state waters. This ensures that management is consistent throughout salmon’s range.
      • Managers regulate the fishery based on escapement goals to ensure harvests are sustainable. They want enough salmon to be able to escape the fishery and return to fresh water to spawn and replenish the population.
      • Salmon fishery management largely relies on in-season assessment of how many salmon return to fresh water to spawn.
      • Managers set harvest levels based on these returns. When abundance is high and the number of fish returning is much higher than that needed to meet escapement goals, harvest levels are set higher.
      • In years of low abundance, harvest levels are lowered.
    • During the fishing season, scientists monitor catch and escapement, comparing current returns with those from previous years, to keep an eye on abundance and actively manage the fishery.
  • Off the West Coast and in Alaska, the Pacific Salmon Treaty and the Pacific Salmon Commission help coordinate management, research, and enhancement of shared U.S. and international salmon stocks, including Chinook.

Harvest

  • Commercial fishery:
    • In 2023, U.S. commercial landings of Chinook salmon totaled 7.6 million pounds and were valued at $31 million, according to the NOAA Fisheries commercial fishing landings database.
    • Most of the Chinook in the U.S. market comes from U.S. and Canadian fisheries.
  • Gear types, habitat impacts, and bycatch:
    • Chinook salmon are harvested using a variety of gear types.
    • Troll vessels catch salmon by "trolling" their lines with bait or lures through groups of feeding fish.
    • To retrieve hooked fish, the lines are wound on spools by hand or hydraulically, and the fish are pulled aboard when alongside the vessel.
    • The troll fishery produces low-volume, high-quality product.
    • Chinook are also harvested in commercial seine and gillnet fisheries (described here), both in fisheries targeting stocks of Chinook and as bycatch in fisheries targeting other species of salmon.
    • Fishing gear used to catch Chinook salmon rarely contacts the ocean floor and has little impact on habitat.
    • Bycatch is low and usually consists of other salmon species.
  • Recreational fishery:
    • Chinook salmon are a favorite catch of recreational fishermen.
    • Recreational fishermen use a variety of fishing gear to harvest Chinook salmon.
    • To ensure recreational fisheries are sustainable, West Coast anglers are only allowed to keep a certain number of salmon per fishing trip.
    • In Alaska, regulations vary by area and individual fisheries.
    • Recreational fisheries in high-use areas (Cook Inlet, Southeast Alaska, Copper River) are regulated through management plans that allocate fish between competing commercial and recreational fishermen.
  • Subsistence fishery:
    • Salmon is an important source of spiritual and physical sustenance for Western Indian tribes and Alaska natives, and salmon are culturally important to many other residents of these areas.
    • Subsistence fishermen use a variety of fishing gear to harvest Chinook salmon.

Last updated by NOAA Fisheries on 04/04/2025

Science Overview

Image
Five salmon species on a table with a ruler arranged from smallest to largest (pink, chum, sockeye, chinook, and coho)
Juveniles of the five Pacific salmon species. Credit: NOAA Fisheries/Alaska Fisheries Science Center

NOAA Fisheries conducts various research activities on the biology, behavior, and ecology of chinook salmon. 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 chinook salmon, and any other species of interest, using NOAA’s StockSMART web tool

Chinook Salmon Research in Alaska

Our work to forecast salmon harvests, assess the impact of commercial fisheries on salmon, and evaluate how salmon populations respond to environmental changes enables us to estimate abundance and trends for chinook salmon in Alaska.

More on salmon research in Alaska

Chinook Salmon Research in the Pacific Northwest

Our research on Pacific salmon covers several topics including bycatch, salmon harvest forecasts, ecotoxicology, genetics, marine survival and responses to climate change. 

More on Chinook salmon research in the Pacific Northwest

 

Research & Data

Salmon and Steelhead Recovery Domains

Endangered Species Act (ESA) recovery domain boundaries for West Coast salmon and steelhead.
August 09, 2024 - Map ,
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GoToWebinar Registration and Joining Instructions

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Alaska

Meet the Task Force Members

Members of the Alaska Salmon Research Task Force
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Alaska Salmon Research Task Force

Information and updates on the task force activities.
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School of adult chinook salmon Spring Chinook Salmon. Credit: Michael Humling, U.S. Fish & Wildlife Service
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Last updated by NOAA Fisheries on 04/04/2025

Documents

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Data & Maps

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More Research

Outreach & Education

Outreach Materials

Little Port Walter Program Flyer

This program is in NOAA Fisheries Alaska's Auke Bay Laboratories.

Alaska
Outreach Materials

Alaska Salmon Research Task Force Meeting Agenda—May 22, 2024

Alaska Salmon Research Task Force Meeting Agenda for May 22, 2024

Alaska
Outreach Materials

Alaska Salmon Research Task Force Meeting Agenda—January 25, 2024

Alaska Salmon Research Task Force Meeting Agenda for January 25, 2024

Alaska
Educational Materials

Central Valley Spring-run Chinook Salmon Brochure

Spring-run Chinook salmon were once abundant throughout rivers and creeks in California’s Central…

West Coast
More Outreach Materials
More Educational Materials

Last updated by NOAA Fisheries on 04/04/2025

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