118 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Comparison by weight of the respective samples. 



About 60 fish, were taken from each sample and weighed 

 fresh. The results were : — 





June Sample. 



September Sample. 



Mean 



Length [T] 











Frequency. 



Av. Wt. 



Frequency. 



Av. Wt. 



mm. 





in grms. 





in grms. 



205 



1 



74 







215 



10 



78 







225 



20 



88 



2 



103-5 



235 



26 



97 



1 



96* 



245 



7 



103 



4 



148 



255 



1 



130 



6 



146 



265 



1 



132 



1 



169 



275 







18 



198 



285 







18 



215 



295 







7 



228 



Totals 



66 





57 





Spent. 



Comparison of stages of maturity. 



Sample. Fre- I. 

 queney. 



II. 



III. 



IV. 



V. i VI. VII. 



Undeter- 

 mined. 



1 % 



June 214 49-53 



September , 242 j ... 



% 

 39-24 



/o 

 7-47 

 0-83 



°/ 

 /o 



1-86 

 0-41 



/o 



0-47 

 90-41 



% % 

 3-72 | 4-54 



/o 

 1-40 



Where a fish is between two stages it has been placed under 

 the higher stage. 



Sex composition of the two samples. 



Sample. 



Frequency. 



^ i 



? 



Undetermined. 





214 

 242 



% j 

 57-00 

 53-3 ! 



% 

 41-59 

 46-70 



% 

 1-40 



September 





