Chinook Salmon, Stikine River


Chinook Salmon, Stikine River

by | Jul 11, 2018

Chinook salmon also called the King salmon in Alaska, is the largest of six North Pacific salmon species. The Chinook ranges from California to Alaska, and Siberia to Japan.

The average adult fish is 24 to 36 inches (61 to 91 cm) in length and 10 to 50 pounds (4.5 to 22.7 kg) in weight. The Chinook may spend one to eight years in the ocean before returning to their home rivers to spawn. The longest freshwater migration is over 1,900 miles (3,000 km) up the Yukon River in Alaska. The run with the greatest elevation gain is on the Salmon River in Idaho, these fish gain over 7,000 feet (2,100 m) in about 900 miles (1,400 km) through eight dams and reservoirs.

In many places, the populations are declining or have disappeared due to overfishing, loss of freshwater and estuarine habitat, hydropower development, poor ocean conditions, and hatchery practices. The five rivers in Southeast Alaska with the largest King salmon runs are the Stikine, Taku, Unuk, Chilkat, and Alsek that in 2017 all fell far short of their management goals. Read more here and here. Explore more of the Stikine River here:

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This ‘warming stripe’ graphic is a visual representation of the change in global temperature from 1850 (top) to 2019 (bottom). Each stripe represents the average global temperature for one year. The average temperature from 1971-2000 is set as the boundary between blue and red. The colour scale goes from -0.7°C to +0.7°C. The data are from the UK Met Office HadCRUT4.6 dataset. 

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