Table 10 --Frequency of number of spines in the first dorsal fin of young striped bass 

 of the 1954 year class from the tributaries of Chesapeake Bay 



Table 11 . --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 



(except James R.) 

 James R. C 



537 1 13 228 292 3 

 X z 150.32, significant at the 1 percent level 



11.53 



No . of specimens 



Anal soft rays 

 8 9 10 11 12 



Mean 



171.858 



S(x-x) 2 



E . Shore tributaries A 578 



W . Shore tributaries B 614 



(except James R.) 

 James R. C 442 1 



X 2 = 86.48, significant at the 1 percent level 



102 



