121 



A summary of tlie resultant direction and distance in each quadrant is as 

 follows : — 



Distances travelled. — The majority of the marked fish did not move far from 

 the station. Of the 76 recaptured, 39 (or 52-7 per cent.) were recovered at distances 

 of 10 miles or less, the average being 6-2 miles, viz. the 8 immature females (100 per 

 cent.), 8 males (40 per cent.), 22 adult females (48-9 per cent.), and the fish of 

 unknown sex. Ten (13-5 per cent.) were recaptured between 10 and 20 miles 

 distant, 3 males (15 per cent.) and 7 females (13-2 per cent.). Thus, 49 fish, or 

 66-2 per cent, of all those recaptured, were got wdthin 20 miles of the station, 

 11 males (55 per cent.), 37 females (69-8 per cent.), and 1 of unknown sex. 



20 to 50 miles. — Thirteen (17-1 per cent.) were recaptured, viz. 4 males, or 

 19 per cent, of all the males recaptured, and 9 females, or 16-7 per cent. 



50 to 100 miles.— ^ix fish (7-9 per cent.) were got between 50 and 100 miles 

 from the place of Uberation, 2, or 9*5 per cent., being males, and 4, or 7-4 per cent, 

 females. 



Over 100 miles. — Six (7-9 per cent.) were recaptured at distances over 100 miles ; 

 3, or 14-3 per cent., were males, and 3, or 5-6 per cent., were females. 



Of the 12 fishes (15-8 per cent, of all recaptures) which had migrated 50 

 miles or over, the 5 males had gone distances of from 71 to 156 miles, all north- 



