Table 8s — Age-class distribution and average total length at each annulus 

 for 259 shortnose gar collected in June, Lewis and Clark Lake, 

 1962 



Age group 



Year class 



Age distribution 

 (percent) 



Average length 

 (inches) 



I 

 II 



III 



IV 



V 



VI 



VII 



1961 

 1960 

 1959 

 1958 

 1957 

 1956 

 1955 



12 

 12 

 23 

 36 

 10 

 6 

 1 



16.4 

 19.1 

 21.1 

 23.1 

 23.8 

 26.4 

 28.9 



Table 9: — Age*class distribution of gizzard shad, in percent of sanple 

 aged, Lewis and Clark Lake, 1956-62 



Age group 



Year of collection 



1956 



1957 



1958 



1959 



1960 



1961 



1962 



I 



II 



III 



IV 



V 



VI 



100 14 



86 31 

 69 



25 

 70 



38 



38 

 24 



58 

 42 



No. fish aged 0— ' 



1/ 



35 



21 



77 



20 



12 



y All fish young-of-the-year 



10 



