May, 1945 



Bennett: Overfishing, Onized Lake 



401 



Table 29. — Age-length frequencies of the 90 golden shiners collected from Onized Lake in the 

 census of June 24-28, 1941. The census was made about l'/2 months after the spawning season, 

 and the lengths shown for each age include the growth increment for the early part of the 1941 

 season. 



Length in Inches 



Age in Years 



1 ... 

 i 



2 • • ■ 



2 ... 



1 



'> . . . 



3"... 

 1 



4"... 

 1 



s' ... 



1 

 2 • • • 



6 . . . 



1 



1' ... 

 1 



8"... 

 1 

 2 • ■ • 



9 ... 



Total. 



4 

 2 



3 



1 



18 



14 



1 



-Desirable Size- 



38 



6 

 19 

 9 

 3 

 1 



38 



1 

 1 

 1 

 1 

 1 

 1 

 6 



Table 30. — Average calculated total lengths in inches of 87 golden shiners collected from 

 Onized Lake in the census of June 24-28, 1941. 



Brood 



Number 



OF 



Fish 



Average Calculated Lengths by 

 Years of Life 



1 



Average Total 



Length at Time 



of Collection 



1938 5 



1939 36 



1940 38 



1941 8 



Total 87 



Average 



2.76 

 4.24 

 3.31 



3.70 



6.28 

 6.82 



6.75 



7.51 



7.51 



1 .16 

 7.19 

 5.25 

 2.20 



Table 31. — Size frequencies for each group of female golden shiners taken from the Huron 

 River at Ypsilanti, Michigan, May 19, 1934 (from Cooper 1935, rearranged). 



Age in Years 



Number of Fish 



Average 

 Standard Length 



Millimeters 



Inches 



Average 



Total Length, 



Inches* 



1 127 



2 83 



3 37 



4 10 



5 2 



70.7 



93.4 



104.3 



120.8 



126.5 



2.78 

 3.68 

 4.11 

 4.76 

 4.98 



3.48 

 4.60 



5.14 

 5.95 

 6.23 



♦Standard length converted to total length by the formula- 

 of Illinois golden shiners. 



T.L. 

 S.L. 



= 1.25. The formula is based on measurements 



