116 



A summary of the mean direction and distance in each quadrant is given in the 

 following table : — 



Distances travelled. — Twenty-five of the fishes, or 35-2 per cent, of the total 

 recaptured, were taken at distances not exceeding 10 miles from the place of 

 liberation. Five (38-5 per cent.) were males, the average distance being 6 miles, 

 and 20 (34-5 per cent.) were females, the average distance being 6-1 miles. 

 Of the total, 18 went south and west, 5 north and west, and 2 south and east. 

 Between 10 and 20 miles, 20 fishes were recaptured (28*2 per cent.), 4 (30-8 per 

 cent.) being males, and 16 (27-6 per cent.) females ; the average distance for the 

 males was 14-1 miles, and for the females 14-7 miles. Five moved to the south 

 and west, 11 to the north and west, three to the north and east, and 1 to the south 

 and east. Thus, 48 of the fishes, or 67-6 per cent, of all recaptured, were taken 

 within a distance of 20 miles of the station. 



20 to 50 miles. — Eighteen, or 25-3 per cent., were found between 20 and 50 

 miles, 2 (15-4 per cent.) males, and 16 (27-6 per cent.) fen.iales, the average distance 

 for the former being 33*7 miles, and for- the latter 31-7 miles. Six had moved 

 north and west, all into the Firth of Forth, to the neighbourhood of the locality 

 where they were originally caught ; 1 moved south and west, also into the 

 Firth of Forth, 1 south and east, and 10 north and east, to the coasts of Forfar- 

 shire and Aberdeenshire. 



50 to 100 miles. — Four fishes (5*6 per cent.), all females, were recaptured at 

 distances of from 79 to 96 miles from the station, the average distance being 



