IN THE BAYS ON THE SOUTH-EAST COAST OF DEVON. 



469 



In the following table the seasonal duration of the trawling on each 

 station is indicated. 



Table XYI., shoiving the Amount of Trawling over each station in Teign- 

 mouth Bay for each quarterly period. 



Totals 



21 50 



20 20 







It will be observed that while Stations VII. and VIII. were investi- 

 gated for fairly similar periods in the summer of 1901 and spring of 

 1902, Station VII. monopolised two-thirds of the time in the autumn 

 of 1901, and only one-fourth of the total time allotted to the stations 

 in the summer of 1902. Station IX. does not appear at all in the 

 records for the autumn and winter, and received relatively more 

 attention in the summer of 1902 than in the corresponding season 

 of the previous year. 



The following table shows the general averages for the five seasons : — 



Table XYII., shotvin.g,for Teignmonth Bay, the Average Catch of Plaice 

 per Hour, and the Percentage Frequency of each size, for each quarter 

 of the year over all the stations combined. 



In the case of Teignmouth Bay it is not possible to draw a com- 

 parison between the Oithona's records and those of Mr. Holt as regards 

 the abundance of fish in the summer quarter, since the latter was not 

 represented during the previous investigations. It is obvious, however, 

 that Teignmouth Bay is characterised, like Torbay, by the presence of 

 a large stationary population of plaice of the smallest size which, with 

 one exception, form the majority of the total catch in each season of 



The figures for the total catch per liour, and catch per hour of small plaice, during 

 the spring quarter, are unduly depressed by the exceptionally large amount of trawling which 

 took place over Station IX. If Station IX. be omitted, as in the two quarters preceding 

 it, the total catch per hour is raised to 25, and the other figures become 19, 2, 2, 2 re- 

 spectively. The percentage of small plaice also becomes raised to 76 per cent. 



