Table 48. — Comparisons of the total number of glU rakers of striped bass from 

 the Chesapeake Bay and the Delaware River ^ 



A 



Locality 



Total No. Gill Rakers 

 22 23 24 25 26 2? 



No. 



Mean 



S(X - x) 



^^2 



York-Rappeihannock 

 Delaware 



t = 7.18** 



9 20 36 30 5 

 - U 34 44 44 



100 24.020 105.960 

 138 24.986 141.971 



B 



Locality 



Total No. Gill Rakers 

 21 22 23 24 25 26 27 



No. 



Mean 



S(X - x) 



^^2 



Upper Chesapeake Bay 1 7 78 293 287 75 5 1^6 24.478 576.157 

 Delaware - - 11 34 44 44 5 138 24.986 l4l.971 



t = 6.08** 



C 



Locality 



Total Ho. Gill Rakers 

 22 23 24 25 26 27 28 



No. 



Ifean 



S(X - x)2 

 80.753 



James 

 Delaware 



t = 1.72 N.S. 



1 2 U 42 23 h 2 

 - 11 34 44 44 5 



85 25.224 

 138 24.986 141.971 



Delaware River sample included young and yearling specimens of the 1951> 1952 

 and 195^ year classes. Chesapeake Bay samples are young striped bass of the 

 1955 yesu: class. 



53 



