■ 281 



I uas caught off Noss Head, 24 miles to the north and (.'ast, and the other north- 

 east of Kmuaird Head, 43 miles to tlie south and east. 



In December, a female was rcca])tured on Smith Bank, at a distance of 8 miles 

 to the south and east. 



In this quarter, 11 of the marked plaice, or 19-6 per cent., were recovered, 

 positions being known for 8, or 14-3 per cent., and of these, 7 (87-5 per cent.) were 

 taken to the south and east, and 1 to the north and east. The migration Unes 

 oji the chart all pass from the station towards the outer waters to the eastwards, 

 none going towards the coast. 



Second Quarter. — In January 1912, a female was recaptared far offshore, 82 

 miles to the north and east. 



In February, 5 malps and 1 female were recaptured, the female in the Dornoch 

 Firth, 33 miles to the south and west ; 1 of the males was also takeiT to the south 

 and west, at a distance of 10 miles ; 2 of the males were recaptured on the same 

 day, off Cl}i:hness, 5 miles to the north and west ; a male was taken on the north 

 coast, north-west of Dunnet Head, at a distance of 58 miles to the north and west ; 

 the remaining male was recaptured 5i miles E. J N. of Cape Wrath, at 894 miles 

 distant. 



Four males and 5 females were caught in March, the place of capture of 1 male 

 and 1 female not being ascertained, and 1 of the females being vaguely described as 

 having been recaptured in the " Moray Firth," and landed at Ostend ; 1 male was 

 captured on Smith Bank, at a distance of 3 miles to the north and west ; another 

 was taker 23 miles to the westward, north of the Dornoch Firth ; the remaining 

 male was captured at the mouth of the Dornocli Firth, 28| miles to the south 

 and west ; 2 females were taken in the Dornoch Firth, 36 miles to the south and west, 

 and the remaining female ol^' Duncansby Head, 31 miles to +he north and east. 



In the second quarter, therefore, 16 fish, or 28*6 per cent., were recaptured, the 

 position being known for 13, or 23*2 per cent. Of these, 5 (38-4 per cent.) were 

 found to the south and west, 4 (30-8 per cent.) to the north and east, 3 (23-1 per 

 ceiit.) to ttie north and west, and 1 directly westward. The migration chart shows 

 the opposite condition from that for the first quarter, only 1 of the fish having 

 migrated eastward, all except 3 being found nearer the coast than the station 

 where they were liberated. 



Third Quarter.— In April, 5 males and 4 females were recaptured, the position 

 of capture of 1 of the males not being ascertained. One male was taken 13 miles 

 to the north and east, off Noss Head ; 1 of the males was got 6 miles to the south- 

 w^est, and the other 2, 2| and 13| nides to the north and west ; all tJie females were 

 caught to the north and east, 2 at a distance of 2^, 1 at 20 miles, and the other 45 

 miles, south-east of Auskerry. 



In May, 2 males and a female were recaptured : 1 of the males was got nort;h- 

 east of Kinnaird Head, at a distance of 47 miles to the south and east ; the female 

 was recaptured 22 miles to the north-east, off Noss Head, and the other male 

 north-east of Auskerry, at a distance of 63 miles to the north and east. 



In June, a female was recovered south-east of Auskerry, 52 miles to the north- 

 east, and a female 15 miles to the north-east, off Noss Head. 



In this quarter, 14, or 25 per cent., were taken, the position being known for 13, 

 or 23"2 per cent. Of these, 9 (69-2 per cent.) were found to the north and east, 2 

 (15'4 per cent.) to the north and west, 1 to the south and east, and 1 to the south 

 and west. The predominating feature of the migration lines in this period was a 

 movement to the northward of the station. 



Fourth Quarter — None of the marked plaice was recaptured during these 

 3 months, so that, in the first year following the liberation, 41 fish, or 73-2 per cent., 

 were recaptured, the position being known for 34 (60"7 per cent.). Of these, 14 

 (41-2 per cent.) were taken to the north and east, 8 (23-5 per cent.) to the south and 

 east, 5 to the north and west, 6 to the south and west, and 1 to the west. 



Of the remaining fish, 5 were recaptured in the remainder of 1912, and 10 in 1913. 



In October 1912, a male was taken 5 miles to the south and west, and a female 

 34 miles to the north and east. In November, 3 females were found, 1 on Smith 

 Bank, 8 miles to the south and east, and the other 2 to the north and east, 1 north- 

 east of Noss Head, at a distance of 30 miles, and the other 4 miles E. by S. from 

 Start Point, Orkney Isles, at a distance of 70 miles. 



