!■' 



Grade 



ip 



05 



!95l 

 ->- 1952 



I9i3 

 ^1954 

 Wii 



Ml V U 



1951 



^ _._ 1952 

 ' ^^ 1953 



I II III IV \i w VII VIII a X M A/r / // /// IV V VI VII viu it i u x/i 



Figure 6. Graphs of indices of the physiological condition of adult Atlantic -Scandinavian 



herring throughout the year. A. average weight of food in the stomach of feed- 

 ing herrings;^ . average stomach fullness grade for herrings in different years; 

 B. average fatness grade; P* . chemical analysis of fatness (flesh) of herring in 

 1953 expressed as % and nutritional condition factor for five age groups of herr- 

 ing in 1954; Jl . variation in the weights of herring of different size groups 

 throughout the year; E. maturity factor (K3). 



158 



