146 



TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Table XII. Comparison of Catches made with different 

 trawi-meshes ; Mersey Area. 1908-1913. 



Mean 

 length. 



4 // -mesh. 



6"-mesh. 



7 ,/ -mesh. 



/ 



f°l 



J 1 00 



/ 



• f°l 



J 1 oo 



/ / /oo 



10-5 

 11-5 

 12-5 

 13-5 

 14-5 

 15-5 

 16-5 

 17-5 

 18-5 

 19-5 

 20-5 

 21-5 

 22-5 

 23-5 

 24-5 

 25-5 

 26-5 

 27-5 

 28-5 

 29-5 

 30-5 

 31-5 

 32-5 

 33-5 

 34-5 

 35-5 

 36-5 



1 



"*16 



82 



262 



420 



418 



342 



296 



202 



234 



220 



242 



186 



123 



102 



46 



37 



17 



16 



7 



2 



4 



1 



2 



0-2 



*6-3 



31-5 



97-1 



144-2 



141-9 



106-9 



86-7 



56-8 



72-7 



62-4 



64-8 



43-6 



301 



251 



9-7 



91 



3-9 



31 



1-4 



0-4 



0-8 



0-2 



0-2 



7 



24 



80 



133 



222 



388 



421 



359 



368 



300 



283 



209 



191 



125 



96 



68 



37 



22 



11 



9 



3 



2 



3 



*3-7 



7-3 



23-6 



41-9 



700 



1260 



1380 



110-3 



108-7 



82-9 



78-0 



54-2 



48-0 



321 



25-2 



20-9 



10-4 



7-3 



4-3 



31 



1-6 



0-9 



1-6 



1 



2 



8 



29 



54 



108 



138 



113 



115 



119 



146 



110 



82 



63 



35 



17 



7 



4 



11 



3 



2 



0-8 



1-7 



6-9 



24-8 



46-3 



92-5 



118-2 



96-8 



98-5 



1020 



125-7 



94-3 



70-3 



540 



30 



14-2 



60 



34 



9-4 



2-5 



1-7 





3,277 



999-1 3,361 



i 



1000-0 



1,167 



1000-0 



