245 



the experiment was recovered in October 1914 ; it was a female which was got off 

 Grimsby, Orkneys, 56 miles to the south and west. 



The following table shows how all the fish of the experiment were distributed 

 in each quadrant : — 



Distances {ravelled — 10 miles and under. — Only 1, a female, was found under 

 10 miles ; it had moved 9 miles to the north and west. 



10 to 20 miles. — Six, or 20 per cent., were taken between 11 and 17 miles, 3 

 males (20 per cent.), with an average of 13-3 miles, and 3 females (20 per cent.), 

 with an average of 13 miles. Two of the males and 2 of the females were found 

 to the north and west, one male to the south and west, and 1 female to the north 

 and east. 



Thus, 7 fish, or 23-3 per cent., were captured under 20 miles. 



20 to 50 miles. — Eight, or 26-6 per cent., were found at distances between 27 

 and 46 nules, 3 males (20 per cent.), with a mean of 39-6 miles, and 5 females 

 (33-3 per cent.), with an average of 38-6 miles. All the males and 2 of the females 

 were found to the south and west, 2 females to the south and east, and 1 to the 

 nor til and west. 



50 to 100 miles. — Nine, or 30 per cent., were recaptured at distances of from 

 51 to 93 miles, 4 males (26-2 per cent.), with an average of 83-7 miles, and 5 males 

 (33-3 per cent.), with an average of 70-2 miles. Three of the males and 3 of the 

 females migrated to the south and west, 1 male and 1 female to the south and 

 east, and 1 female to the north and west. 



Over 100 miles.— ^ix, or 20 per cent., were found at distances exceeding 100 

 miles, 5 males (33-3 per cent.), with an average of 144-4 miles, but this includes 

 a fish said to have been captured at the Great Fisher Bank, and 1 female which 

 was found 114 miles to the south and west. All the males went to the south and 

 west, except the 1 described as caught on the Great Pisher Bank, 



