SEA-FISHERIES LABORATORY. 

 Table II. 



229 



1914. 



Percentage of 

 Males. 



Percentage of 

 Berried 

 Females. 



Percentage of 



Non-berried 



Females. 





29-2 



49-2 



21-5 







February (1) 



64-5 



18-0 



17-4 







March (2) 



74-5 



161 



9-2 







April (2) 



72-8 



15-8 



11-3 







May (2) 



58-9 



30-6 



10-4 







June (2) 



13-9 



66-2 



19-8 







July (2) 



16-5 



54-8 



28-6 







August ( 1 ) 



540 



16-7 



291 







September (2) 



50.1 



17-2 



32-5 







October (2) ... 



62-3 



5-4 



32-2 







November (1) 



17-5 



1-4 



80-9 



December (2) 



38-1 



7-0 



54-7 







Considering now the data given in the tables we may 

 make some conclusions with respect to the spawning period 

 of shrimps in the Mersey Estuary. 



v NON-Q£RRlll> FtMALES 



Males 



BE.RRIEP FEMALES 



JAN I FEB I MAR I APRIL I MAY IjUNE I JULY I AUC, IseFtI OCT I NOV I DEC I 



Fio. 1. Variations in the relativo numbers of males, non-berried females, and 

 berried females in the samples examined during 1914. 



