225 



Distances migrated — 10 miles and under. — Five fisli, or 35*7 per cent., were 

 recaptured at distances of from 5 to 8 miles, 2 males (28"6 per cent.), with an 

 average of 7"25 miles, and 3 females (42 'B per cent.), with an average of 5-6 miles ; 



1 male was found to the north and east, and 1 to the south and west, while all 

 the females were taken to the south and east. 



None was taken between 10 and 20 miles. 



20 to 50 miles. — Five, or 35*7 per cent., were found at distances of from 20 to 

 47 miles, 3 males (42 "8 per cent.), with an average of 33 miles, and 2 females (28'6 

 per cent.), wath an average of 32 miles ; 1 of the males was found to the north, 

 and all the other fish to the south and west. 



50 to 100 miles. — One male was recaptured ofi Noss Head, 56 miles to the 

 south and west. 



Over 100 miles. — Three, or 21*4 per cent., were taken at distances over 100 

 miles, including the male taken by the Cuxhaven trawler above referred to, and 



2 females which migrated, 1, 133 miles to the south, and was caught off Aberdeen, 

 and the other on the west coast at 136 miles distant. 



Maturity. 



Males. — The condition of the testes was ascertained for 6 of the 7 recaptured. 

 One taken in May 1912, near Foula, 47 miles to the northwards, was "spawning." 



Two were " ripe " ; 1 taken in March 1911, ofi Noss Head, 56 miles to the 

 south and west, the other in June 1911, 8 miles to the north and east. 



One caught in June 1911, 32 miles to the south and west, east of the Orkneys, 

 was " spent." 



