PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1922. 3 



Page. 



Part 2. — Distribution of fish and fish eggs 83 



Tabular summaries of distribution 84 



Distribution to all applicants 84 



Assignments to State and Territorial fish commissions 88 



Distribution methods and equipment 89 



Improvements to fisheries car No. 9 ^^ 



Use of galvanized vessels in transporting live fish 89 



New method of shipping live fish without ice or attendant 90 



Experiments with different cans 90 



Practical applications 91 



New equipment for use in shipping live fish 92 



Fish-transportation pail 92 



Automatic siphon and improved tray for ice 96 



Canvas jacket for 10-gallon can 99 



Aerating device 99 



Cost of distribution 9^ 



Stocking interior waters of the United States 101 



Species distributed 1^1 



Species limited in assignment 101 



Spiny-rayed fishes unsuited for trout and salmon waters 101 



Carp considered undesirable by many States 101 



Ornamental fishes not distributed 102 



Rescue work 102 



Dangers from overstocking 102 



Methods of increasing fish supply 102 



Pollution of streams 103 



Method of distribution 104 



Size of allotments 105 



Size of fish 105 



Period of disti'ibution lOG 



Aeration of watei- 106 



Planting of fish 107 



Cooperation with various agencies 107 



United States Forest Service 107 



National parks 107 



Railroads 107 



Organizations and individuals 108 



Fish protection 109 



Restrictive fishing laws essential 109 



Enforcement of fisheries laws 109 



Extermination of predatory animals at bureau's stations — 110 



Results of stocking interior waters HI 



Comparative results for certain periods 111 



Detailed results for 1916 and 1917 112 



INTRODUCTION. 



An interesting point in connection with the bureau's fish-cultural 

 activities, and one that augers well for future progress, is the in- 

 telligent interest displayed by an ever-increasing number of persons. 

 State officials, persons interested in the commercial fisheries, sports- 

 men's organizations, officials of the large railroad companies, and 

 many individuals in all parts of the country watch the work with 

 jealous interest, as is made manifest by their frequent comment upon 

 it. Such comments are sometimes commendatory in character, or 

 they may take the form of adverse criticism. In either case they 

 are welcomed as being indicative of an awakening public sentiment 



