1952 



^ ' I ' I ' I ' I ' I ' I ' 1 ' I ' I ' I ■ I ' I ' I ' I 









10 

 10 

 10 



10 

 10 

 10 

 10 

 ID 

 10 

 10 

 10 

 10 

 10 



80 

 60 

 40 

 20 



120- 

 100- 



80 - 



60- 



40 



20 



80 

 60 

 40 

 20 



Week No. 



No Sample 



No Sample 



W^ 



Jl 



2 



_2 



_3 



4 



_6 

 7 



JO 

 J I 



J 2 



J3 



J4 



15 



16 



17 



,18 



240 



220 



200 



180 



:60 



140 



120 



100 



80 



60 



40 



20 



60 

 40 

 20 



10 

 10 



10 

 10 

 10 

 10 

 10 

 10 



10 

 10 



"V'! ' I ■ I ' I ' I ' I ' I ' I ' M I i | ' I ■ 1 I I 



r^V^ 



3 



■-n ■-. 



J. 



xiL 



2 



JH 



No Sample 



I 2 



No Sample 



No Sample 



No Sample 



19 



_20 



_2I 



_22 



_23 



_24 



_25 



_26 



_27 



_28 



_29 



_30-32 



_33 



_34 



_35- 39 

 _40 



_4 1 - 52 



■ I . I . I ■ I . I - 1 ■ I ■ I ■ I ■ I ■ I -I ■ I i I 



i, I ■ I . J I . I . h-O-i I w-n I ■ I 1 1 .III"-* wLi. 



^^O 80 120 160 200 240 280 320 Iw 80 120 160 200 240 280 320 



Length in Millinnefere 



Figure 16. - Length frequency of downstream -migrant bluebacks in weekly 

 samples, 1952. 



24 



