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IDFG

Cumulative Chinook Salmon Hatchery Returns

Spring / Summer 2013


Adult hatchery Chinook salmon returning to Idaho provide opportunities for sport fisheries and non-tribal and tribal harvest. Returning adult Chinook salmon that swim through the fisheries without being harvested are trapped at hatchery facilities in the Clearwater, Salmon, and Snake drainages. The trapped adult fish are primarily utilized for hatchery production (brood stock), maintaining the cycle of juvenile fish releases that will mature into the next generation of returning adult fish. Fish that are trapped in excess of the brood stock needs may be: 1) released back to ongoing fisheries, 2) provided to Indian tribes for subsistence needs under harvest sharing agreements, 3) distributed to food banks or, 4) released to supplement naturally spawning populations. Idaho Fish and Game manages six Chinook hatchery stocks in Idaho. Brood stock goals - the number of adult fish needed to utilize each of the facility’s capacity to raise fish - are shown for each hatchery stock. The adults used as brood stock at Dworshak, Clearwater and Rapid River hatcheries are trapped at more than one location.

Fish returning to Dworshak, Clearwater, and Rapid River hatcheries all originate from the same ancestral stock. If broodstock goals are not met at Dworshak, Clearwater or Rapid River hatcheries, Fish and Game may use any available extra adults that returned to another of these three hatcheries to make up for the shortfall.

The fish raised at the McCall Hatchery are from adults trapped in the South Fork Salmon River trap just downstream of Knox Bridge (Warm Lake Road). All the Chinook from McCall Hatchery are released in the South Fork Salmon River. Fish raised at Pahsimeroi Hatchery are from adults trapped in the Pahsimeroi River and all are released on site into the Pahsimeroi River. Fish raised at Sawtooth Hatchery are from adults trapped in the Upper Salmon River a few miles upstream of Stanley and all are released on site into the Upper Salmon River. Because the ancestral brood stocks for all three of these hatcheries are different, the facilities operate independently. If the brood stock goal is not met at these hatcheries Fish and Game does not use adults from another hatchery to make up the difference.

The information listed below is the total number of Chinook salmon that have been trapped as of the date shown. It includes both natural and hatchery produced fish. One of the hatchery best management practices is to collect brood stock from the entire continuum of the run (not just from the first or last fish that are trapped at the hatchery). Therefore, not all fish that are trapped are held for brood stock and the number of fish that have been ponded for brood stock is less than the total number trapped to date.

Dworshak National Fish Hatchery
Broodstock Goal - 1,800 Hatchery Adults
Trap Date Hatchery Adults Trapped
To Date
Hatchery Jacks Trapped
To Date
Wild Fish Trapped
To Date
Dworshak Trap --- --- --- ---
Kooskia Trap (Clear Creek) --- --- --- ---



Clearwater Hatchery
Broodstock Goal - 1,860 Hatchery Adults
Trap Date Hatchery Adults Trapped
To Date
Hatchery Jacks Trapped
To Date
Wild Fish Trapped
To Date
Crooked River Trap -- -- -- --
Red River Trap --- --- --- ---
Powell Trap (Lochsa River) --- --- --- ---



Rapid River Hatchery
Broodstock Goal - 2,400 Hatchery Adults
Trap Date Hatchery Adults Trapped
To Date
Hatchery Jacks Trapped
To Date
Wild Fish Trapped
To Date
Rapid River Trap --- --- --- ---
Oxbow Trap (Snake River) --- --- --- ---



McCall Hatchery
Broodstock Goal - 1,300 Hatchery Adults
Trap Date Hatchery Adults Trapped
To Date
Hatchery Jacks Trapped
To Date
Wild Fish Trapped
To Date
South Fork Salmon River Trap --- --- --- ---



Pahsimeroi Hatchery
Broodstock Goal - 600 Hatchery Adults
Trap Date Hatchery Adults Trapped
To Date
Hatchery Jacks Trapped
To Date
Wild Fish Trapped
To Date
Pahsimeroi River Trap --- --- --- ---



Sawtooth Hatchery
Broodstock Goal - 950 Hatchery Adults
Trap Date Hatchery Adults Trapped
To Date
Hatchery Jacks Trapped
To Date
Wild Fish Trapped
To Date
Sawtooth Trap (Salmon River) --- --- --- ---