FORTY-SECOND BIENNIAL REPORT 163 



resident fish. Evidence to date shows that it is futile to attempt to combine the 

 two types of fishes. The greatest productivity of the coastal streams can be 

 attained by using them as rearing areas for young fish which will migrate to sea, 

 grow rapidly and return to the stream to supply greater sport as well as more 

 pounds of fish. Resident fish will therefore not be planted or developed in steel- 

 head and salmon streams. 

 6. The impermanency of many streams in California causes heavy losses of fish 

 each year. All steelhead and salmon possible will be rescued, but it is recognized 

 that salvage is difficult or impossible in many cases. 



F. STRIPED BASS 



1. Striped bass are an outstanding example of the tremendous productive potential 

 of fishes under favorable conditions. In spite of more and more anglers, the 

 fishery is stabilized and in good shape. Management will therefore be directed 

 towards maintaining continuing statistical measures of the status of the fishery, 

 in order to assess the effects of impending changes in their habitat and increase 

 in the number of anglers. So far as possible, the adverse effects of these changes 

 will be anticipated and prevented. 



G. COMMERCIAL UTILIZATION OF FRESH-WATER FISHES 



1. Salmon, shad, and catfish are still taken commercially from inland waters and 

 carp and mullet are utilized under permit. The use of fishes for both food and 

 recreation in combination is a higher use than for food alone. Where the supply 

 is inadequate for both commercial and sports use in inland waters, the com- 

 mercial use should be restricted or eliminated. However, full and proper utili- 

 zation should be provided for. At present carp are not utilized by sportsmen as 

 food, and therefore the increasing commercial use of this fish shall be encouraged 

 and permitted. 



H. REVISION OF POLICIES 



1. All management policies shall be based on collection of factual information and 

 research, and shall be modified in accordance with the findings made. The fore- 

 going policies will therefore be regarded as a guide to ever improving and expand- 

 ing principles for the management of the inland water fisheries of California, 

 based on new facts developed through research and experience. 



Adopted July 20, 1951. 



