1. The Distances Travelled. 



In each experiment, a summary was made of the distances migrated, irrespective 

 of the time taken, of each of the marked plaice recaptured. In some cases, the fish 

 were recaptured at the place where they were liberated. In the accompanying 

 table are given the numbers of the marked plaice taken at various distances from 

 the place of Uberation. It will be seen that the largest proportion were recaptured 

 between 20 and 50 miles, and that this was the case both with the males and the 

 females. The males, on an average, moved farther than the females, 35' 1 per cent, 

 being taken at a distance exceeding 50 miles, as compared with 28 per cent, of 

 the females. At distances of from 150 to 200 miles, 5*1 per cent, of the males were 

 recaptured, as compared with 1*8 per cent, of the females, and at distances exceed- 

 ing 200 miles, 1"9 per cent, of the males, as against "9 per cent, of the females. 



Forty-eight of the fish, or TS per cent., were recaptured, at distances exceeding 200 

 miles, and 6 at distances over 300 miles, although some of these may be regarded 

 as doubtful. In one case, where the fish was liberated in the Firth of Forth, it 

 was said to have been recaptured near the Goodwin Sands, and landed at Ramsgate, 

 and inquiry confirmed the accuracy of the record. The farthest distance indicated 

 was 472 miles ; 't refers to a fish liberated off Kinnaird Head, or, the east coast 

 of Scotland, and reported, as recaptured, in Morecambe Bay, Lancashire, but it is 

 open to considerable doubt. 



2. The Direction op the Migrations. 



(1) FIRTH OP PORTH REGION. 



This region comprises the. experiments (1) between Elie and Fidra, (2) 3 miles 

 off Fidra Light, (3) 20 miles east of the Isle of May, (4) 40 miles east of the Isle ot 

 May, (5) 50 miles east of the Isle of May, and (6) St. Andrews Bay. 



The directions of migration in each of the experi)nents conducted at these 

 stations are discussed in the body of the Report, and here it will suffice to sum- 

 marise some of the results. It is best to consider, first of all, the offshore station, 

 20 miles east of the Isle of May. 



(a) 20 Miles East of the Isle of May. 



An examination of the charts showing the lines of migration proves very clearlv 

 in this case that the predominant migration is to the north. Thus, of a total of 643 

 of the marked plaice recaptured, only 9, or r4 per cent., were taken to the south 

 of Latitude 56° N., which is only 17 imles south of the station, whereas, no less than 

 78 were recaptu -ed north of Rattray Head, which lies about 80 miles to the north 

 of the station. In four of the experiments, none of the fish recaptured was taken 

 to the south of 56° N. 



