134 



1914, after 622 days, had moved only 11 miles. Of these fish, 2 were caught within 

 the limits of the spawning season, 1, measuring 33"5-33'8 cm., in January 1913, 

 after 42 days, at a distance of 17 miles, and the other, measuring 33-34-7 cm., in 

 April 1913, after 143 days, within the Firth of Forth, 32 miles distant. Six of the 

 immature males were taken to the south and west, at distances of from 5 to 18 

 miles. One, of 33-33-4 cm., was caught in March 1913, at a distance of 15 miles. 



Females. — Forty-nine of the recaptured fish were adult females, and the condition 

 of the ovaries was ascertained in 44 cases. Of these, 6 were " spawning " ; 2 were 

 captured in January 1914, after 411 days, both in the Moray Firth, near Banff ; 

 they measured respectively 42-5-46-7 cm. and 51-5-55-2 cm., the distances travelled 

 being 113 and 114 miles ; 2 were taken in February 1913, after 72 and 75 days, at 

 distances of 50 and 44 miles to the north and east, off the coast of Aberdeen ; 

 they measured respectively 46-46-2 cm. and 40-40 cm. ; 1, of 35-5-46 cm., was got 

 in December 1914, after 747 days, only 7 miles distant to the south and east ; 

 another, of 41-5-45-2 cm., was taken in March 1914, after 461 days, only 3^ miles 

 distant to the south and west. 



Four were " ripe." Of 2, taken in March 1914, 1 was captured 36 miles to the 

 north and east, after 457 days ; it measured 54-5-55-4 cm. ; the other was found 

 97 miles south and east, after 475 days ; it measured 42-45 cm. ; a third fish, 

 measuring 39-45 cm., was taken in February 1914, after 424 days, 186 miles to the 

 south and east ; the fourth was caught in April 1914, after 488 days, 64| miles to 

 the north and east, off the coast of Aberdeen ; it measured 36-5-42 cm. It is 

 interesting to note that 2 of these " ripe " females were recaptured at such con- 

 siderable distances to the south and east. 



Seven of the adult females were " spent." One was taken in June 1914, after 

 557 days, only 10 miles directly east ; it measured 31-5-44 cm. ; another, caught in 

 April 1915, after 846 days, was found in the Firth of Forth, near where it was 

 originally captured, at a distance of 29 miles ; it measured 45-51-4 cm. ; the re- 

 maining 5 fish were caught to the north-east ; 1, taken in April 1913, after 133 days, 

 was got off Rattray Head, 139 miles distant ; it measured 45-45-5 cm., was taken 

 in June 1913, after 198 days, 19 miles to the north-east ; 1, measuring 41-45-6 

 cm., was found in July 1914, after 579 days, also in the Firth of Forth, near the 

 place where it was originally captured ; 1, measuring 35-5-42-9 cm., was caught in 

 May 1914, after 531 days, off the Pentland Skerries, 152 miles to the north and 

 east ; the last fish, measuring 41-5-50-8 cm., was taken in July 1915, after 965 

 days, off the coast of Aberdeen, at a distance of 31 miles to the north and east. 



Five were "nearly ripe." One, of 35-39-2 cm., was taken in December 1913, 

 after 360 days, 67 miles to the north-east, off the coast of Aberdeen ; another, 

 measuring 41-5-44-6 cm., was caught in February 1914, after 437 days, in the Moray 

 Firth, 113 miles distant ; 1, of 44-5-44-3 cm., was recaptured in January 1913, 

 after 32 days, 3 miles to the south-east ; the fourth, of 43-43-1 cm., was caught 

 in February 1913, after 62 days, 12 miles to the south and west ; and the fifth, 

 measuring 42-5-46-7 cm., was taken in January 1915, after 785 days, only 15 miles 

 to the north and west. 



Five of the females were "advanced in maturitv," " three -rjuarters," or "fully 

 half-ripe." One, of 44-47-9 cm., was caught in July 1913, after 236 days, 3 miles 

 directly east ; another, 50-5-51-4 cm., was recaptured in December 1913, after 361 

 days, 43 miles south and west, in the Firth of Forth ; 3 remaining fish were caught 

 to the north and east ; 1, measuring 40-43 cm., in January 1914, after 411 days, 

 off Whitehills, in the Moray Firth, 114 miles distant ; another, 36-5-40 cm., was 

 taken in September 1913, after 272 days, 41 miles distant ; and the remaining 

 fish, 38-44-3 cm., was recovered in November 1913, after 341 days, off the coast of 

 Aljerdeen, 52 miles distant. 



Seventeen of the adult females were " immature." Those caught in the months 

 fro;n December to May were as follows : — One, of 40-5-39-7 cm., was got after 3 

 days, 5 miles to the south-west ; another, 45-5-45-4 cm., was taken in February 

 1913, after 78 days, off Buchanness, 68 miles to the north and east ; a third, of 

 39-5-40-3 cm., was taken in April 1913, after 129 days, 114 miles to the north and 

 east, in the Moray Firth ; the fourth, measuring 38-5-39-3 cm., was taken in March 

 1913, after 110 days, 29 miles to the north and east ; the fifth, 39-5-40 cm., was 

 taken in February 1913, 23 miles north and west, in the Firth of Forth, near the 



