Size composition of ages 



The effect of culling on the different ages of haddock is shown more 

 graphically by the size composition of the ages in the discarded and landed 

 portions of the catch. These size compositions are presented in table 10 

 and figijre 12. Referring to figure 12, the dominance of the I9U8 year class 

 in the landings is strikingly evident. Also clearly shovm is the division 

 of the 19h9 year class between the discards and the landed fish, with the 

 smaller of these being rejected and the larger included in the marketed group. 



The size conposition curve for the 19h9 year class as shown for the 

 total catch is markedly different from that of other year classes in that it 

 exhibits two definite widely separated peaks. At first, it was thought that 

 this might be due to sampling errors, but examination of this same year class 

 a year later (in 19^2) showed this same type of size distribution. The rea- 

 son for this unusual size distribution of the I9U9 year class cannpt be 

 explained at this time. 



TABLE. 9. --Percentage of each age discarded on the averafc:e Georges 



27 



