Table 12. --Frequency of number of spines and soft rays in the dorsal and anal fins 

 in composite samples of young striped bass of the 1954 and 1955 year 

 classes from Chesapeake Bay tributaries arranged geographically from 

 north to south 



170.57, significant at the 1 percent level 



Second dorsal soft ravs 

 No. of specimens 9 10 11 12 13 14 



Mean 



S(x-x)' 



Table 13 . --Frequency of number of spines and soft rays in the dorsal and anal fins of 



young striped bass of the 1954 year class from the Hudson and James Rivers 



Hudson 1486 3 5 19 574 880 5 10.57 469.145 



James 216 12 54 159 -- 10.72 53.773 



X = 15.12, significant at the 1 percent level 



103 



