TABLE 24. Estimated date of peak abundance for cunner 

 eggs based on the inflection point of the Gompertz function 

 for station EN. 



Year 



EN 



1979 

 1980 

 1981 

 1982 

 1983 

 1984 

 1985 

 1986 



Jun 12 

 Jun 14 

 Jun 8 

 Jun 18 

 Jun 14 

 Jun 9 

 Jun 7 

 Jun 5 



The a parameter from the Gompertz function 

 was used to estimate annual egg abundance and 

 all R^ values exceeded 0.98. Annual egg abun- 

 dances peaked during 1985 and declined to a his- 

 torical low in 1986 (Fig. 13). This low abundance 

 was reflected in the annual entrainment estimates 

 with the 1986 estimate among the smallest, even 

 with the additional cooling water demands of 

 Unit 3 (Table 25). Similar to tautog, cunner larval 



TABLE 25. Annual entrainment estimates and 95% confi- 

 dence intervals for cunner eggs at MNPS. 



Revised estimate due to error in previous calculations 

 (NUSCO 1987b). 



entrainment estimates based on median densities 

 could not be calculated because larvae were in- 

 consistently found in samples collected during 

 their period of occurrence. The seasonal 5-mean 

 density of larvae in 1986 was one of the lowest 

 at both EN and NB (Table 26). Abundances 



60 



50 



40 



30 



20- 



10 



79 



80 



32 83 



YEAR 



85 



Fig. 13. Cunner egg abundance estimale.s and 95% confidence intervals ba.sed on the a parameter of the Gompertz 

 function for station EN. 



284 



