of the Fishery Board for Scotland. 15 



At the end of each month the herrings are skimped, and the characters 

 of each class are then shown in general and discnssed. A table gives the 

 weights in grammes of all the herrings at each centimetre size, the weights 

 in grammes of the pair of reprodnctive organs (ovaries or testes), the 

 breadth of the reprodnctive organs in mm., and the diameter of the eggs 

 in mm. All the herrings examined in the month are not included, 

 because these data were nob noted on eveiy herring. 



The herrings of each class have been arranged together for each month, 

 and have been grouped in the tables given on pp. 59 to 62. 



The Samples of Herrings. 

 January. 



Clyde. — Campbeltown, Macrinnan's Pt., 18th January 1906: — 16 

 W. Spr. F., 23 to 31 cm.: eggs, 1-1-1-3 mm. : o, 25-35 mm.; t, 20-30 

 mm. These herrings had their stomachs full of schizopods. 



Clyde. — Campbeltown, Mouth of Harbour, 20th January 1 909 : — 

 9 Imm., 19 to 23 cm. : eggs, "12, '15 mm. : o, 3-4 mm. : t, 1-5, 3 mm. : 

 fat, large quantity ; 20 Imm. dev , 18 to 24 cm. : eggs, "2, -3 mm. : o, 3-5 

 mm. : t, 3-4-5 mm. : fat, large quantity ; 15 W. Spr., 19 to 25 cm. : eggs, 

 •4-"8 mm.: o, 7-15 mm.: t, 10-20 mm.: fat, a little, a large quantity; 

 2 S. Spr. $, 21, 25 cm.: eggs, "15, "35 mm. : o, 3, 4 mm.: fat, large 

 quantity ; 1 S. Spt. S, 25 cm. : t, 4 mm. 



Clyde. — Campbeltown, Kildalloig Bay, 22nd January 1907 : — 15 W. Spr. 

 F., 26 to 32 cm. : eggs, M, 1-2 mm. ; o, 22-32 mm. : t, 26-35 mm. : fat, 

 none. They all, with two exceptions, had food in their stomachs. Two 

 stomachs were empty ; the majority of the remainder were distended with 

 copepods. This sample includes some herrings three years old. 



Clyde. — Campbeltown, Kildalloig Bay, 24th January 1907: — 55 W. Spr. 

 F., 23 to 31 cm. : eggs, 1-0-1 '3 mm. : o, 20-34 mm. : t, 20-43 mm. ; fat, 

 none or merely a trace. Most of these herrings had remains of food in 

 their stomachs. Some stomachs were filled with copepods, while others 

 were empty. 



Clyde.— Off Largs, 16th January 1907: -50 W. Spr. 23, to 28 cm.: 

 eggs, -4-1-2 mm. : o, 6-23 mm. : t, 12-29 mm. : fat, much, none; 1 S. Spt. 

 S, 24 cm. : t, 8 mm., shrunken : fat, none : this is possibly an autumn 

 spent. In most cases there were remains of food (schizopods) in the 

 stomachs ; some stomachs were empty. 



Clyde. — Gareloch, 22nd January 1907 :— 2 Imm. dev., 20, 23 cm. : 

 eggs, -25 mm. : o, 3-5 mm. : t, 3 mm, : fat, large quantity ; 40 W. Spr., 20 

 to 26 cm. : eggs, -6-1-1 mm. : o, 8-24 mm. : t, 7-25 mm. : fat, very little, 

 large quantity. Stomachs empty. 



Clyde. — Loch Fyne, Ardrishaig, January 1906 : — 6 W. Spr., 25 to 32 

 cm. : eggs, "9-1 "3 mm. 



West Coast. — Stornoway, 2-3 miles off Tolsta Sands, 15th January 

 1907 :— 37 W. Spr., 27 to 30 cm. : eggs, -8-1-2 mm. : o, 10-30 mm. : t, 

 20-34 mm. : fat, none or only a trace. Some stomachs contained the 

 remains of food (crustacea) ; others were empty. 



West Coast. — Loch Broom, 26th January 1905 : — 12 Imm., 19 to 25 

 mm. : eggs, not yolked : o, small ; t, small, pink in colour ; 13 S. Spr., 20 

 to 25 cm. : eggs, up to '35 mm, getting yolked : o, small, developing : t, 

 small, white ripening; 18 W. Spr., 22 to 30 cm. : eggs, •5-1-2 mm. ; 5 

 Spt., 26 to 29 cm. : eggs, -2, -25 mm., not yolked. 



East Coast. — Firth of Forth, 3rd January 1908: — 112 Imm. and^Imm. 

 dev., 11 to 22 cm. : eggs, -1-2 mm. : o, l'25-4 mm. : t, 1-4 mm. : fat, 

 large quantity, a little. The herrings from 15 cm. upwards show eggs -17 



