204 



Shelby D. Gerking 



calculated to solve the formula : F = COJ^ ; where F = fecun- 

 dity in thousands of eggs; 0^^ = ovary weight in grams. C and 

 n are empirically determined constants. 



The advantage of this computation is that it is possible to 

 judge whether fecundity is increasing in a linear fashion in 



Table IV 



COVARIANCE ANALYSIS OF REGRESSION OF BODY WEIGHT IN GRAMS AND 

 FECUNDITY IN THOUSANDS OF EGGS IN PLAICE (PleurOliecteS platCSSO) OF VARIOUS 



AGES. Calculated from data of Simpson (1951) 



relation to ovary weight or whether it is increasing more 

 rapidly or less rapidly. The exponent, n, would not deviate 

 significantly from 1 in the first case, would be < 1 in the 

 second, and > 1 in the third. The solution of the equation 

 was: F = 7'14 OJ^'^'^^^ with 95 per cent confidence limits of 



