20 



and 3 on the north coast of the Firth, at 153 to 168 miles distant ; 1 between the 

 Orkney Islands, at 192 miles ; 1 to the east of the Orkneys and south of Fair Isle, 

 at 195 miles ; 2 on the north coast of Scotland, at distances of 208 and 225 miles ; and 



1 at Loch Inchard, on the west coast of Scotland, at a distance of 256 miles. The 

 3 fish which were taken to the south and east had also travelled long distances. 

 The first was caught 32 miles E.S.E. of Longstone Light, at a distance of 75 miles; 

 the second 24 miles E. by S. of Hartlepool, at 122 miles distant ; and the third 21 

 miles E. of Flamborough Head, at 161 miles distant. Of these, the sex of the first- 

 mentioned was unknown, the second was a female, and the third a male. 



It is of interest to note that plaice from the Firth of Forth migrated to the 

 Moray Firth to spawn, and some of them did so with considerable speed. Thus, 



2 liberated in November 1910, between Elie and Fidra, were recaptured, 1 off 

 Banff, in January 1911, after 55 days, and the other off Lossiemouth, in March 1911, 

 after 104 days, the rates of movement being respectively 24-7 and 15-6 miles per 10 

 days. The fish recovered at Loch Inchard was taken in March, after 114 days, 

 the rate of speed being 22-4 miles, and 1 of those recaptured on the north coast was 

 taken also in March, after 106 days, the rate of travel being 21-2 miles. 



From the station, 3 miles from Fidra Light, 11 " spawning " plaice were 

 recaptured, all to the north and east. Ten of these were from the first experiment 

 on 5th December 1912, and of these 1 was taken off Fife Ness, at a distance of 

 11 miles ; 2 were recaptured north-east of the Bell Rock, at distances of 33 and 

 40 miles ; 2 south-east of Aberdeen, at distances of 68 and 69 miles ; 1 south-east 

 of Buchanness, at a distance of 99 miles ; and 2 near Buchanness, at distances of 

 84 and 91 miles ; the remaining 2 fish were found in the Moray Firth, 1 off Banff, 

 at a distance of 145 miles, the other off Dunbeath, on the north coast, at a distance 

 of 166 miles. A fish, Hberated on 30th May 1913, at this station, was recaptured 

 to the south-east of Aberdeen, at a distance of 67 miles, in January of the next year. 



From the experiment in St. Andrew's Bay (3rd December 1913), two " spi. • ning " 

 males were recaptured, at 17 and 20 miles eastwards, south of the Bell Rc( k. 



From the experiments at 40 miles east of the Isle of May, 12 "spiwning" 

 plaice were recaptured, 8 to the north and east, at distances of from 31 to 194 

 miles ; 3 were recaptured in the neighbourhood of Aberdeen Bank, at distances 

 of 31, 36, and 37 miles, 4 in the MoraV Firth, 2 of them off Banff, at 108 and 109 

 miles distant, a third in the Dornoch Firth, at a distance of 139 miles, and the 

 fourth off the Ord of Caithness, at 151 miles, 1, 30 miles E.N.E. of Sule Skerry, 

 to the west of the Orkneys, at a distance of 194 miles. Four were taker to the 

 north and west, 1 at Aberdeen Bay, 52 miles distant, another 5 miles E.N.E. of 

 Stonehaven, 45 miles to the westward, and 2 E.N.E. of May Isle, at distances of 

 18 and 24 miles. 



From the experiments at 50 miles east of the Isle of May, 7 " spawning " plaice 

 were recaptured. One w^as taken 20 miles eastwards of the Isle of May, at a distance 

 of 32 miles from the station ; 3 were recaptured south-east of Aberdeen, near 

 Aberdeen Bank, at 25 and 37 miles to the north and east, and 38 miles north ; 

 1 was found 8 miles south-east of the Bell Rock, 36 miles to the west and north ; 

 another, in Eddrachilles Bay, Sutherland, on the west coast of Scotland, at a 

 distance of 236 miles ; and the last, 27 miles E. by S. of Hartlepool, 103 miles to 

 the south and west. 



Only one " spawning " plaice, a male, was recaptured from the experiments 

 at 100 miles east of the Isle of May (Experiment II.) ; it was taken on Aberdeen 

 Bank, 50 miles to the north and west of the station. • 



(2) GREAT FISHER BANK. 



One " spawning " female was recaptured from the experiment at Great Pishei 

 Bank in July 1911 ; it was taken 99 miles to the north and west. 



(3) TOD HEAD. 



One "spawning" fish, a male, was recovered from the experiment made off 

 Tod Head in July 1912 ; it was taken 38 miles to the north and east, offshore, 

 eastwards of Aberdeen. 



