134 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



or it may be said that the percentage of these plaice 

 recaught depends entirely on the amount of fishing being 

 carried on in the neighbourhood of the place of liberation. 

 But it is obvious that these two statements mean exactly. 

 the same thing. 



Influence of Different Methods of Fishing. 



Most of the marked fishes returned during 1907 were 

 caught by 1st and 2nd class sailing trawlers. The following 

 list is compiled from the tables of particulars of fishes 

 returned : — 



Caught by 1st class sailing trawlers ... ... 78 



Do. 2nd class do. ... ... 36 



Do. steam trawlers ... ... ... 10 



Do. trammels, stake nets, " draw nets," &c. 15 



Information not given, or doubtful ... ... 10 



Rate of Growth of Marked Plaice. 



Only the results of Experiment 1 in 1907 can be 

 utilised to deduce the variation in the rate of growth from 

 month to month throughout the year. The numbers of 

 fishes returned during the separate months were, however, 

 small, and it does not appear useful to tabulate them here. 

 I have examined the numbers, and the results are very 

 much the same as those given in the last annual report, 

 except that the increase in growth during the summer 

 months does not appear to have been as rapid as is repre- 

 sented in the curve given in the last annual report. The 

 numbers of fishes returned are, however, too small to 

 justify any general conclusions as to a difference in the 

 rate of growth between then and former years. 



