232 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



3. Distribution of Plaice and Dabs. 



Some notes on this subject, derivable from the 

 trawling statistics collected by the officers of the Com- 

 mittee, may be of interest. I will take, first of all, all 

 the observations made on the distribution of immature 

 fishes on the Blackpool closed ground : — 



Date. 



July 14, 1903 

 Aug. 2, „ 



Dec. 11, „ 



*Feb. 12, 1904 



April 14, ,, 

 May 4, „ 



5> 31, >> 



June 10, „ 

 10, „ 



>> 31, ,, 



July 14, 1903 



tSept. 16, „ 



Nov. 13, „ 



Dec. 29, „ 



Jan. 12, 1904 



Feb. 5, „ 



March 15, „ 



„ 24, „ 



May 10, „ 



30, „ 



June 27, „ 



Dabs can glit. 



Plaice caught. 



740 



42 



1,350 



52 



18,050 



20 



2,685 



3 



3,429 



12 



390 



4 



514 



62 



78 



41 



534 



31 



200 



92 



72 



30 



1,479 



2,081 



1,270 



15,513 



3,893 



10,300 



390 



50 



73 



These 



hauls were 



made by 



Captain 



Wignall, 



using a 



shrimp 



trawl 



from the 



steamer. 



5 



7 



"l 

 7 



17 



47 



These 



hauls were 



made by 



Mr. J. 



Wright, 



using two 



shank nets 



from the 



sailing 



cutter 



" Piel 



Castle." 



* A shrimp shank net was used on this occasion, 

 f Only one shank net was used on this occasion. 



It will be seen from these figures that young plaice 

 are very scarce on the Blackpool closed ground, and that 

 dabs are relatively very abundant. Further, dabs are 

 extremely abundant during the cold winter months. 



