106 



The mean direction taken, and the mean distance gone in each of the quadrants 

 is shown in the following table : — 



Distances travelled. — Nineteen of the fishes recaptured (or 52-8 per cent.) of 

 those about which particulars were ascertained, were taken at distances not ex- 

 ceeding 10 miles from the station, viz. 9 males (56-2 per cent.) and 10 females 

 (52-6 per cent.), the average distance for the males being 5-7 miles, and for the 

 females 6-1 miles. Eight, or 22-2 per cent., were recaptured between 10 and 20 

 miles, viz. I male and 7 females, the average distance being I5J miles. Thus, 

 27 or 75 per cent., were caught within 20 miles of the station. 



20 to 50 miles. — Between 20 and 50 miles, 5 were recaptured (13-9 per cent.), 

 2 males at 23 and 44 miles, 2 females at 45 and 43 miles, and 1 of unknown sex 

 at 26 iniles, all north and east. 



50 to 100 miles. — Between 50 and 100 miles, 2 males were recaptured, at 55 and 

 56 miles, both to the north of the station. 



Over 100 miles. — Over 100 miles, the recaptures consisted of 2 males, both of 

 which had migrated to the north, and were taken in the Moray Firth, 1 at 137 

 miles, and the other at 144 miles distant. 



Maturity. 



Males. — Of the 16 adult males recaptured, the condition of the testes was 

 ascertained in 12. Two were " ripe," viz. the one caught in February 1912, in the 

 Moray Firth, at a distance of 144 miles, and the other the one caught on 2nd July 

 1911, after 13 days, 6 miles to the south and west. 



