1951 



\rt ' I ' I I I ' I ' I M ' I I I I I I I M I I M ' I 



Week No. 

 No Sample I.5 



•^ 





'°^l ■ I ■ I ^^1 . I ■ I ■ I ■ I ^ ■ Ii 



40 80 120 160 200 240 280 320 



10 

 10 



10 



10 



10 

 10 



10 



10 

 10 



10 

 10 

 10 



10 



2 



No Sample 



No Sample 



V ' I ' I ' I ' I ' I ' I ' M I I I ' I I I M ' I I I 'I 



2 26 



27 



. 2 8 



^29 



^30 



31 



^32 



^33 



^34 



^35 



^36 



37 



^38 



39 



^40 



41 



No Soniple 



No Sample 



I 



No Sample 



283 



I 



No Somple 



I 



No Sample 



_42 

 _43-45 

 _46 

 47-52 



K' I.I.I. I I ■ 1 1 I 1 1 



40 80 120 160 200 240 280 320 



Length in Millimeters 



Figure 15 - Length frequency of downstream -migrant bluebacks in weekly 

 Si-aiples, 1951. 



23 



