Kooskia National Fish Hatchery
Pacific Region
 

Do you have some questions about Kooskia National Fish Hatchery? We've tried to answer some of the most often asked questions below. If your question isn't answered here, please contact us with your question.

Why was Kooskia National Fish Hatchery built?
What kind of fish are raised at Kooskia NFH?
How far do the fish have to travel from the ocean to reach the Kooskia hatchery?
How many adult chinook from Kooskia NFH return to the Clearwater River?
When are chinook spawned?
Are adult salmon fed at the hatchery?
How many eggs do female fish produce?
What happens to the fish after they are spawned?
How many fish are raised in each pond at the hatchery?
What are the young fish fed?
How much fish food is used each year at Kooskia NFH?

Why was Kooskia National Fish Hatchery built?

Kooskia National Fish Hatchery (NFH) was established in 1969 to enhance fishing and to mitigate spring chinook salmon losses resulting from federal dams and other water development projects in the Columbia River Basin.
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What kind of fish are raised at Kooskia NFH?

Spring chinook salmon. The young chinook salmon will swim to the ocean and return to the hatchery as large adult fish.
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How far do the fish have to travel from the ocean to reach the Kooskia hatchery?

In June and July, adult salmon weighing from 12 to 22 pounds migrate from the ocean 525 miles to Clear Creek where they were released as five-inch smolts two or three years earlier. These adults are trapped and transported to Dworshak hatchery where they are held for spawning two months later.
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How many adult chinook from Kooskia NFH return to the Clearwater River?

Less than 0.3% of the total chinook released return as adults to Kooskia hatchery.
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When are chinook salmon spawned?

Spring chinook salmon spawning season is in the late summer, completed in a short time from mid-August to early-September. Spawning is accomplished at Dworshak National Fish Hatchery in Ahsahka, Idaho.
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Are adult salmon fed at the hatchery?

We do not feed any of the adult brood fish that return. They are generally in good health and do not need feed when in the river or in the hatchery.
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How many eggs do female fish produce?

The average adult chinook salmon produces about 3,500 eggs. The number varies with the age and size of the fish.
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What happens to the fish after they are spawned?

Spring chinook must be disposed of to a landfill, as the quality of the fish at spawning time is not desirable for food.
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How many fish are raised in each pond at the hatchery?

Generally, we will have 50,000 in each Burrows pond and 25,000 in each raceway.
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What are the young fish fed?

Fish are fed a mixture of fish meal (ground-up fish), fish oil, grain products, minerals and vitamins that will give them all they need to be healthy when they go into the river.
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How much fish food is used each year at Kooskia NFH?

At capacity production, about 26,945 pounds of food will be used every year to raise approximately 20,000 pounds of fish.
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Last updated: December 12, 2012
Kooskia National Fish Hatchery
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