LANCASHIRE SEA FISHERIES 



71 



Schematic representation of the general movements in the sea of marked 

 plaice liberated off the shores of N.W. Wales in the areas indicated by shading. 

 The widths of the tracks are proportional to the number of plaice taking part 

 in the subsequent movements. 



(From Report by R. J. Daniel and R. A. Fleming, Lancashire Sea-Fisheries Report for 1932.) 



