488 



IIKPOIIT OX TKAWLING AND OTHEI! INVESTIGATIONS 



Table XXVI., showing the Ch'oiuth of marked Plaice, classified according to 

 (1) season of liberation, (2) original size on liberation, and (3) jicriod 

 of growth in months of thirty days. 



It will be seen from the table that for many of the months the 



number of records is too small to enable an accurate curve to be drawn 



representing the increase in size through each month of the year. 



A considerable number of fishes, however, were recaptured during the 



sixth month after liberation, and a fair number about the twelfth 



month. In the latter case, however, the records for the eleventh and 



thirteenth months may also be taken into consideration in order to 



enlarge the field from which the average for twelve months' growth 



may be derived. The following table, based on this method, shows the 



average increase in lengtli for the plaice recovered after six months' 



and a full year's growth respectively. 



* Brass label (Batch VIII.). % Bone label (Batch IV.). 



t Record doubtful, possibly 334, in which case the increment would be onl}' 60 cm. 

 ^^ Record doubtful, the date of capture l>eing given as April 4th, 1902, in one place, and 

 April 4th, 1903, in another. The latter, from other evidence, appears to be correct. 



