Table Ih: — The age, length at capture, and nunber of bluegllls reoovered 

 from area 3 in 19li8 and 191i9. 



Number Estinsated Percentage Ttttal length (inches) 



Tear of fish total number of total 



class aged in age group number Range 



Age 



group 



19lj8 



19h9 



Average 



Sauger; --Five age groups of saugers were 

 represented in the 1948 collection of 31 fish 

 (Tab.e 13). Age groups 1, 11, and 111 accounted 

 for 32.3, 22.6, and 16.1 psrcent, respectively, 

 of the total number. Excluding age group 0, 

 the specimens ranged from 6.4 to 14.5 inches 

 in length. In 1949 there were no young-of-the- 

 year among the 19 fish recovered and the 

 oldest specimen was of age group 111. The 

 1947 year class was represented by a like 

 number of fish in both years . 



Walleye ;- -Of nine fish recovered in 1948, 

 eight were of age group and one was of age 

 group V. The 1949 collection of 11 fish was 

 not aged, but six varied from 3.8 to 7.5 inches 

 and five from 17.2 to 22.2 inches in length. 



Panfish 



Bluegill : --Age groups 0-IV were present 

 in both years (Table 14). In the 2 years age 

 groups III and IV were represented by four and 

 one specimens , respectively. The difference 

 in numbers of young-of-the-year fish recovered 

 in the two years (399 in 1948; 3,103 in 1949) is 

 probably more apparent than real, since the 1949 

 collection vvas made approximately 1 month later 

 in the year and the water was lower and clearer 



than in 1948. This assumption is supported by 

 the fact that more than twice as many specimens 

 of the 1948 year class were recovered in 1949 

 as 1 -year-olds than were taken in the previous 

 season as young-of-the-year. Age group 11 was 

 more strongly represented in 1948 than in the 

 following year. The largest fish in 1948 and 

 1949 were 9.3 and 9.0 inches in length .respectively. 



Black crappie;--More black crappies of age 

 group I were collected in 1948 than in 1949 but 

 representatives of age group II were much more 

 abundant in the latter year than in the former 

 Table 15). The appearance of this strong 1947 

 year class in 1949 as age group II could not have 

 been predicted on the basis of recovery data of 

 1948 when the fish were of age group I. The 

 limited occurrence of fish of the 1945 year class 

 in 1948 is repeated in the 1949 collection. Only 

 four specimens of the 1944 year class were 

 taken in 1948 but nine appeared in the collection 

 a year later. This apparent strength of year 

 class is not shown in the data for any other pan- 

 fish species in either 1948 or 1949. A sharp 

 decline in representation of older age groups 

 was evident in both years. The largest fish 

 from the combined collection was 12.8 inches 

 in length. 



26 



