160 



BIOLOGY OF THE SEAS OF THE U.S.S.R. 



70° 75° 20° 10° 0° 10°20°30°40° 50" 60° 70° 



10° 20° 30° 



Fig. 62a. Distribution and spawning places of Norwegian 

 and Murman herring (Tikhonov, 1939). 1 Murman herring; 

 2 Norwegian herring. 



Fish feeding. The quantitative method of analysis offish feeding for the Barents 

 Sea was first worked out at the Oceanographic Institute, and later applied to 

 other bodies of water of the Union. Before this there had been only qualita- 

 tive evaluations of the diet of fish in the Barents Sea. At present we have a 

 fairly complete quantitative analysis of the feeding of cod, haddock, herring, 

 caplin, launce, long rough dab, catfish and a series of abundant, non-com- 

 mercial fish. 



V 



4 S Ц 



Z — N \ j 



С \ 



Fig. 62b. Chart of drift of larvae and distribution of herring young- 

 of-the-year in the Barents Sea (Marti, 1939). 1 Spawning sites; 2 Lar- 

 vae up to 20 mm; 3 Up to 30 mm; 4 Up to 40 mm; 5 Up to 50 mm; 

 6 Young-of-the-year. 



