162 FISHERIES OF THE NORTH SEA 



in Canada was only five cents, and most of 

 the output went to Germany. 



Canada hatches annually very large 

 quantities of fish fry, whilst the output of 

 the hatcheries of the United States in 1917 

 was over 5,000,000,000. Many years ago 

 the American Government introduced fish 

 from the Atlantic to the Pacific. Some 

 species, such as the shad, which was for- 

 merly unknown in the Pacific, are now so 

 prolific as to maintain canneries by their 

 increase. The opinion of the authorities 

 on the subject is that hatcheries are of 

 greater value in restoring and maintaining 

 sea fisheries than closing down the industry 

 and preventing fishing during the breeding 

 season. Both methods have been tried, 

 and hatcheries are proved to be, with most 

 species, far more efficacious. It is the old 

 story over again ; in America research 

 helps the industry, in England everybody 

 is -pursuing old methods, and science is 

 considered unnecessary. Thus the ultimate 

 welfare of the industry is neglected. State 

 assistance in installing hatcheries is of 

 great interest to the British fisheries, but 

 it will be impossible unless the other 



