FISHES AND MANKIND 



385 



give it a more pleasing name, and it was marketed in England 

 as "Flake," in Canada and the United States as "Gray-fish," 

 and in Germany as "See-Aal" (Sea Eel). Chemical analysis of 

 the flesh has shown that it is highly nutritious and easily digested, 

 but so far its consumption has been limited largely to the 

 poorer classes of the community, large quantities being used 

 by the estabhshments supplying fried-fish dinners. In this 

 country Dog-fish is eaten fresh, but abroad there are consider- 

 able tinning and preserving industries. Another fish which 



AVERAGE ANNUAL LANDINOi 



BRITISH VESSELS 



1925-1929 



Fig. 136. 



Diagram illustrating the relative importance of different kinds of British Food- 

 fishes. 



has come in for a good deal of unfair unpopularity is the 

 Cat-fish or Wolf-fish {Anarrhichas) , chiefly on account of its 

 tough skin and ugly head. Here, again, it has been found 

 convenient to market this perfectly wholesome fish under a 

 more pleasing name, and, deprived of its head and skin, it is 

 sold as "Rock Salmon," or, in Scotland, "Rock Turbot." 



The sea fisheries of the world may be roughly divided into 

 deep-sea and inshore fisheries, the former being very much more 

 valuable. The deep-sea fisheries of the continental shelves 

 and the banks of the great oceans lie almost entirely within the 

 limit of a depth of two hundred fathoms, and the majority 



2B 



