518 



STATE OF WASHINGTON DEPARTMENT OF FISHERIES - EXHIBIT E 

 and salmon in Puget Sound. 



Use by fish and shellfish of the marine, 

 estuarial, and fresh-water area under consideration here 

 is evident, but these stocks are being subjected to almost 

 excessive stress by man's alteration of their natural 

 environment. Favorable water quality conditions must 

 be maintained throughout the various phases of their 

 life cycle. Successful propagation of anadromous fish 

 in such protected areas as hatcheries, spawning channels, 

 and special rearing ponds can be negated by the loss due 

 to adverse environmental conditions encountered on their 

 seaward migration, including the stream, estuarial and 

 marine waters. 



Alteration of the aquatic environment by 

 man's steady progress toward higher levels of urbanization 

 and industrialization has required more strlngest regu- 

 lation of both the commercial and sports fisheries. This 

 is especially applicable to the salmon fishery resource. 

 The Department of Fisheries now operates four salmon 

 hatcheries and three spawning beaches*to supplement the 

 stream production of chlnook and coho salmon in north 

 Puget Sound. Production at these stations has been in- 

 creased from 50,000 lb. in 1956 to 150,000 lb. of fish 

 in 1965 (Table 13). This increased production coupled 

 * Sockeve 



