Table 7 shows average calculated total lengths of these original breeder bluegllls 

 for each year of life. Their average measvired total lengths when taken from Fork Lake in 

 1939 are underscored. It will be noted that each brood showed unusually large growth dur- 

 ing the year they spent in Fork Lake. The average increase in length of these fish during 

 this time was about 2 inches for all ages. 



TOTAL LENGTH OF FISH, INCHES 



FIG. 7. — The relationship between increase of body length and anterior radius of 

 scales in bluegllls. 



Growth in weight is a better measure of fish production than growth In length, espec- 

 ially when fish of different sizes are being compared. The breeder blueglll lengths shown 

 in table 7 have been translated into weights to show the illative growth in these fish 

 while in Homewood Lake and In Fork Lake. Average weights for each brood at the end of 

 each year of life are shown in fig. 8. Average actual weights were used for these breeder 

 bluegllls after their year In Fork Lake. Calculated lengths for earlier years were trans- 

 lated into calculated weights by using average Indices of condition for Homewood Lake blue- 

 bills, as shown in table 8. 



TABLE 8. —AVERAGE INDICES OF CONDITION, "C,' 

 BLUBGILl^, JUNE, 1938. 



FOR HOMEV/OOL LAKE 



Additional comparison is furnished in fig. 8 by including the average weights of the 

 1938 brood of bluegllls at three seasons during 1939. It will be noted that these yearling 

 bluegllls from Fork Lake averaged larger than fish ranging from 2 to 5 years old from Home- 

 wood Lake. 



11 



