102 



The summary of the resultant direction and distance in each quadrant is as 

 follows : — 



Distances travelled. — The number recaptured within 10 miles of the station 

 was 9, or 39'1 per cent, of those whose position of capture was known, viz. 1 male 

 and 8 females, the average distance being 5*1 miles. The number recaptured 

 between 10 and 20 miles was 2, 1 male and 1 female. Thus, 11 of the 23 fishea 

 recaptured, whose positions were known, or 47'8 per cent., were taken within 20 

 miles of the station, 2 (28"6 per cent.) being males, and 9 (56"2 per cent.) females. 



20 to 50 miles. — The number recaptured between 20 and 50 miles was 5, or 

 21-7 per cent., viz. 1 male and 4 females, the average distance being 29'6 miles. 



50 to 100 miles. — Three were recaptured within these hmits, namely, a male 

 at 56 miles, and 2 females at 59 and 85 miles, all to the north-east. 



Over 100 miles. — Four were recaptured at distances of over 100 miles (17"4 per 

 cent.), viz. 3 males (42*9 per cent.) and 1 female. The males migrated distances 

 of 151, 126, and 176 miles respectively, the average being 151 miles, and the female 

 migrated 174 iriiles. 



Maturity. 



Males. — The condition of the testes was ascertained in only 5 of the 9 males 

 recaptured. Two were " nearly ripe," viz. the 1 taken at Orkney, 176 miles 

 distant, in February 1912, and the 1 taken off St. Andrew's Bay, in November 

 1911. One was "three-quarters ripe," viz. the fish caught in December 1911, 

 56 miles to the north, off the coast of Aberdeen. 



The other two males were " immature," and were both caught in June 1911, 

 to the south-west of the station ; 1 measuring 34-4 cm., at a distance of 19 miles, 

 the other, of 35-1 cm., 5 miles distant. 



