De 
observe how these fish, when not too strongly mixed with the Shetland race, preserve 
their peculiar composition in this respect. Thus in 1911 there was a single predominant 
year class (1904) as we have seen in the foregoing chapter. 
ATARI) 
I (m - - | 
5 oY 
\ 50 %, 40% 
rd 
zn 
iA UGUST \ 
\SEPTBR | 
Fig. 38. Percentage of fish of 1904 year class in certain samples from the North Sea (1911). 
2) That the autumn spawning ocean herring exhibit, from Shetland to the Dogger, 
on the Jutland Bank, and off the coast of Bohuslän, the same distinct peculiarity as 
regards the 1906 year class, and the table on page 63 as well as closer observation of the 
Che 
