Table 16. Frequencies of Proctoeces maculatus infection in Myti 1 us edul is 

 maintained at Rlr, WLISrN, WLISc and 500MW from June 1984 through - March 1985. N = 

 sporocyst, L = 1-9 sporocysts, M = 10-99 sporocysts, H>100 sporocysts per section. 



Proctoeces Infection % Proctoeces Infection 



Station 



N L M+H Totals N L M+H Totals 



Rlr 



70 



16 



18 



104 



67.3 



15.4 



17.3 



100 



WLISrN 



65 



19 



20 



104 



62.5 



18.3 



19.2 



100 



WLISc 



73 



22 



13 



108 



67.6 



20.4 



12.0 



100 



500MW 



66 



13 



14 



93 



71.0 



14.0 



15.0 



100 



G-test Statistics: G=1.9670, d.f.=6, x 2 Q g75( 6 ) =1 - 237 ' p<0 - 975 



39 



