201 



and the female, the condition of whose ovaries was not recorded, 29 miles to tlie 

 south and west, offshore, to the east of the Bell Rock. A male and a female were 

 taken in February, the male at a distance of 10 miles to the north and west, and 

 the female at 15i miles distant in the same direction ; both were " spawning," the 

 male measuring 36-5-36-8 cm., and the female 44-44-3 cm. Three females were 

 caught in March, but the position of capture of 1 was not recorded. One of the 

 others, of 42-5-43'4 cm., was taken at a distance of 8 miles to the north and west, 

 and was " spawning " ; the other, measuring 38-37'8 cm., and " rather immature," 

 was got nearly at the same place. 



In this quarter, 7 were recaptured, or 17'5 per cent., the positions being 

 recorded for 6 (15 per cent.), and of these 5 were found to the north and west, at an 

 average distance of 15 miles, the mean direction being N. 25° W. ; the other fish 

 was taken to the south and west. The chart shows the radiating lines going to 

 the north and west, 5 of the 6 fish being taken to the northwards. 



Third Quarter. — Two males and 3 females were taken in April 1913, but the 

 position of capture of one of the females was not ascertained. One female was 

 found lOi miles to the west, and the other 6 miles to the north and west ; one 

 of the males was taken 12 miles to the north and west, and the other 15 miles to 

 the south and west ; all these fish were " immature." A female, of 45-46 cm., 

 was caught in May off Eattray Head, at a distance of 48 miles to the north and 

 west, and was " spent." 



In this quarter, 6 fishes, or 15 per cent., were taken, the positions being known 

 for 5 ; 3 were found to the north and west, and 1 each to the south-west and the 

 west. 



Fourth Quarter. — A male and a female were recaptured in July 1913, the male 

 18 miles to the south and west, and the female to the east of the Isle of May, at 

 a distance of 51 miles to the south and west. Two females and a male were taken 

 in August, the male at 7 miles and one of the females at 14| miles to the north 

 and west, and the other female 13J miles to the north and east. 



In this quarter, 5, or 12*5 per cent., were caught, 2 to the north and west, 2 to 

 the south and west, and 1 to the north and east. 



Thus, in the 12 months immediately following the liberation of the fish, 

 30 marked plaice were recovered, or 75 per cent., but the positions of 2 were not 

 recorded. Of the remaining 28, 13 (46-4 per cent.) were found to the north and 

 west, 9 (32-1 per cent.) to the south and west, 3 (10-7 por cent.) to the north and 

 east, 2 to the west, and 1 to the south and east. 



[Table. 



* 



