■44- 



Table 11 « White crappie growths at Heyburn and Upper Spavinaw compared with 

 growths made in other new Oklahoma reservoirs. ■'• 



Size No. Dates 

 Nams of Cond- in of coil- 

 reservoir ition acres fish ected 



Average calculated total length 

 in inches at end of year 



Heyburn Muddy 1,070 446 52-55 



Upper Spavinaw Clear 3,192 304 52-55 



Ft= Gibson Clear 19,100 479 52-53 



Tenkiller Clear 12,500 139 52-53 



Canton^ Inter- 4,900 1,552 48-53 



mediate 



Wister3 Inter- 4,000 346 49-52 



mediate 



12.5 



11.7 

 12.6 



1 Comparative data from Hall, Jenkins and Finnell (1954). 



2 Represents only four individuals, 



3 Growths from Canton and Wister Reservoirs were based on calculated body-scale 

 relationships and probably average slightly higher in the younger age groups 

 than if calculated by the direct proportion method used in the other calculations. 



traps, and in both years it was outnumbered only by the gizzard shad in the 

 rotenone samples. In spite of this prominence the population was not considered 

 large. By weight it was less prominent, ranking seventh in the rotenone collections 

 for both years. 



The Heyburn white crappie population resembled that of the largemouth bass 

 with a pronounced and unusual dominance of older fish, indicating again that 

 natural reproduction was severely restricted. Orr collected and aged 234 white 

 crappies in 1953 of which only 10, or less than 5 percent, were of the 1952 year- 

 class at a time when this age group should have dominated the returns. In 1954, 

 the 1952 year class represented a much greater percentage of the sample, and 

 the 1953 year class was atypically scarce with only 8, of this age group among 



