396 



Illinois Natural History Survey Bulletin 



Vol. 23. Art. 3 



Table 23. Age-length frequencies of the 1,638 warmouth bass collected from Onized Lake in 



the census of June 24-28, 1941. The census was made about 1 Vi months after the spawning 

 season, and the lengths shown for each age include the growth increment for the early part of 

 the 1941 season. 



Age in Years 



Length in Inches 



1 



2 .... 

 1 



2 • ■ • • 



3 .... 

 1 



2 . . . . 



4 .... 

 1 



2 ■ ■ • ■ 



5 .... 

 1. 



2 • • • • 



6 .... 



1 



2 • • • 



7 ... 

 1 



2 ■ ■ • 



8 ... 



Total. 



33 



555 



474 



56 



47 



-Desirable Size- 



1,165 



64 



169 



179 



40 



- 2 



3 



1 



466 



2 

 3 

 1 

 1 



Fig. 8 — Average rate of growth of warmouth bass in Onized Lake and in Reelfoot Lake , 

 The warmouth bass in Onized Lake grew at approximately the same rate as the green sunfish:] 

 lig. 9, and neither of these species was of great importance in the hook-and-line catch. 



