198 



TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



JOO • 



bSO- 



600 



650 



500- 



i+SO 



4-OC- 



A/ 



or 



th 



S 



ea 



I I 



46 



4-0 

 35 

 30 

 25 

 20 

 15 

 IO 



30 

 25 

 ZO 



15 



to 



I I 



1 I 



I r\i s 



i 

 I 



h | S\ea 



I l 



I I 



^EngNsH C l fia l nn l e/ 



i I i 



i i 



1 I 



1906 bj 



'od 



'og \1910 



11 



IB 



13 



74- 15 lb 77 16 19 '2o 



Fig. 15. Graph showing the change in the plaice fisheries in the North Sea, 

 English Channel, and Irish Sea. Based on official statistics. 



