16 
MIGRATIONS OF INSHORE FLAT FISH. 
A turbot which was marked in August, 1907, at Skate Roads, 
was recaptured in July, 1909, 48 miles E.f S. from Aberdeen. It 
measured 29 cm. (Ilf in.) when liberated, and 43‘8 (17f in.) when 
recovered. During the two years, therefore, this example, a 
female, has grown 14-8 cm. (5f in.) It would have weighed about 
1 lb. in 1907, and it weighed 3 lbs. 9 oz. when recaptured. From 
what has already been said in previous reports with regard to the 
growth of the turbot, it is evident that this one was over three 
years old in 1907, and over five years old in 1909 when it was 
recaptured. 
On July 28th, 1909, 2 turbot (Nos. 304, 350) and 54 plaice 
(Nos. 305 — 349, 351 — 359) were marked and liberated at Skate 
Roads. The turbot have not been recovered, but particulars are 
given in the accompanying table of the plaice which have been 
recaptured. 
The last one was evidently one which had been marked, for the 
wound made by the fastener was still visible. 
It is interesting to note the northerly migration of the female, 
which from its size was evidently becoming mature. All the others 
were immature when recaptured. 
I wish to take this opportunity of thanking Professor D’Arcy 
W. Thompson, and also the fishermen for returning the marked 
fish. 
