216 



Distances travelled — 10 miles and under. — Ten, or 23' 2 per cent., were re- 

 captured at distances of from 2 to 10 miles, 3 males (16"6 per cent.), with an average 

 of 5*3 miles, and 7 females (28 per cent.) with a mean of 7-6 miles. All the males 

 and 5 of the females were found to the north and west, 1 female to the north and 

 east, and 1 to the south and west. 



10 <o 20 miles. — Five, or ll'G per cent., were got at distances of from 12|^ to 

 15^ miles, 2 males (ITl per cent.), with an average of 14 miles, and 3 females 

 (12 per cent.), with an average of 13'5 miles. One male and 2 females were found 

 to the north and west, 1 male and 1 female to the south and west. 



Thus, under 20 miles from the station, the number recaptured was 15, or 34-9 

 per cent., viz. 5 males (27-7 per cent.), with an average of 8*9 miles, and 10 females 

 (40 per cent.), with a mean of 9-4 miles. 



20 to 50 miles. — 19 of the marked plaice, or 44*2 per cent., were recovered at 

 distances of from 21 to 48 miles, 7 males (38'8 per cent.), with an average distance 

 of 42 miles, and 12 females (48 per cent.), with an average of 32 miles. All the 

 males and 6 of the females were found to the south and west, and 6 females to 

 the north and west, 



50 to 100 miles. — Four, or 9-3 per cent., were taken at distances of from 52| 

 to 74^ miles, 2 males (11"1 per cent.), with an average of 66 miles, and 2 females 

 (8 per cent.), with a mean of 52-7 miles ; 1 male migrated north and west, and 

 the other and both females to the south and west. 



Over 100 miles. — Five fish, or ir6 per cent., were recaptured at distances of 

 from 106 to 150| miles, 4 males (22'2 per cent.), with an average of 121-5 miles, 

 and 1 female (4 per cent.), which migrated 110 miles. All these iish were taken 

 to the north and west. 



Maturity. 



Males. — Tne condition of the testes was recorded for 17 of the 18 males 

 recaptured. 



Five were " spawning " ; 4 were taken to the north and west, and 1 to the 

 south and west, the latter in March 1914, north-east of St. Abb's Head, at a distance 

 of 45 miles ; 1 of those which migrated to the north and west was taken at a 



