M N 



> ao -6 andei- Ss cm 

 f ^m boven 3Scm 

 -iO ■ mo% .«; 33 em 

 ' - g % z^ SSam 

 30.^0% ^ 2S cm 



20 . jc % -C it on 

 10 - to % 7 JS on 



Figure 10.— Distribution of plaice of various sizes in the 

 North Sea, ^q 



