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Salmoniformes

Chinook Salmon

(Oncorhynchus tshawytscha)


       Only 

juveniles have been observed in Fishing Bay.
        Look for: Blue-green or purple coloration on back and top of  
 head                                                                      
                             Silvery sides
                             White belly
                             Black spots on upper half of body
                             Gray to black mouth coloration
                             Up to 145 cm –– all the individuals observed in
 Fishing Bay                                      
have been juveniles.
         Diet:  Juveniles feed primarily on terrestrial and aquatic
                            insects, 
amphipods and other crustaceans.  Adult
                            
feed on other fish.                            
        Habitat:  Chinook are anadromous, inhabiting both fresh and
                                 salt 
water.
        Range: North of the Bering Strait to central California
        Reproduction: Spawning occurs in late summer to late fall. 
Eggs are laid 
in large gravel substrate and need cool temperatures and good water flow to survive. Fry and smolt
 
spend 1 to 18 months in fresh water 
before traveling downstream.  Adults 
spend 1 to 8 years in the open ocean 
before returning to their natal stream 
to spawn.

    Note:  All of the chinook observed in Fishing Bay thus far have been
of hatchery origin.  Hatchery fish can be identified by a clipped adipose
 fin. Glenwood Springs Hatchery on Orcas Island releases thousands of c
hinook salmon each year. 






juvenile chinook salmon

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