76 



77 



78 



79 



80 



n 82 



YEAR 



83 



84 



85 



86 



87 



Fig. 9. Grubby larval abundance estimates and 95% confidence intervals based on the re parameter from the Gompertz 

 function for stations EN and NB. 



was concurrent with larger catches and suggested 

 higher recruitment of young. 



TABLE 18. Seasonal 5-mean catch (CPUE) and 95% con- 

 fidence intervals of grubby caught by trawl at selected stations 

 during each report period (June-May). 



Season used for calculating the 5-niean was December- 

 June at IN and year-round at JC and NR (June-May). 



Except at NR, no long-term changes in mean 

 length or abundance indices occurred for the 

 grubby, even though it was a dominant taxon in 

 both entrainment and impingement. The esti- 

 mated number impinged has declined since 1985, 

 but there has been no decline in trawl catch, in- 

 dicating this was probably a result of physical 

 changes (removal of the cofferdam) near the Unit 

 2 intake. Impingement impacts for the grubby 

 have been reduced with the addition of sluiceways 

 at MNPS. The grubby is a hardy species and had 

 high sluiceway survival of 74% at Unit 1 and 

 97% at Unit 3 (NUSCO 1988). 



Tautog 



The tautog is found from New Brunswick to 

 South Carolina, but is m.ost common from Cape 

 Cod to the Delaware Capes (Cooper 1965). Its 

 distribution is limited primarily to inshore regions 

 with individual populations being highly localized 

 (Cooper 1966). They are commonly found in 



278 



