of the Fishery Board for Scotland. 



105 



In 1896, my predecessor, Mr. Archer carried on netting in the Spey 

 during the close season, for the purpose of marking clean early running 

 fish. Since, however, spawning fish were also marked, I am able to 

 add these to the Tay returns of unspawned and spawning fish. In the 

 case of all other rivers, kelt marking has alone been carried on, and I 

 am therofore restricted in the bulk of returns to data bearing upon the 

 period after spawning when, it would appear, the habit of the male kelt 

 is different from that of the female. 



Unspawned and Spawning Fish. 



River. 



Date. 



Total. 



Males. ' 



Females. 



Approximate 

 Proportion of Sexes. 



Tay - - 

 )> 



Spey- 



Nov. 1901. 

 „ 1902. 

 „ 1903. 

 „ 1896. 



22 

 246 

 369 

 128 



3 



100 

 123 

 24 



19 

 146 

 246 

 104 



If females to 1 male. 

 2 „ „1 „ 

 H „ „1 „ 



Kelts. 



Tay - 



Spey- 

 j) 



Deveron - 



Thurso - 

 Helmsdale 



Brora 

 > > 

 j > 



Shin - 

 Annan 



November. 



January. 



Feb & Mar. 



April. 



December. 



January. 



February. 



March. 



February. 



March. 



April. 



November. 



January. 



February. 



March. 



April. 



February 



March. 



April. 



55 

 237 

 259 

 52 

 80 

 227 

 209 

 49 

 29 

 60 

 39 

 272 

 57 

 59 

 54 

 18 

 86 

 275 

 93 

 40 

 121 



5 



20 

 26 

 5 



27 

 73 

 118 

 14 

 4 

 6 

 4 



197 



24 

 23 

 22 



7 

 23 

 38 



9 

 20 

 15 



50 

 217 

 233 

 47 

 53 

 154 

 91 

 35 

 25 

 54 

 35 

 75 

 33 

 36 

 32 

 11 

 63 

 237 

 84 

 20 

 106 



10 females to 1 male. 



W „ „ 1 „ 

 9 „ 1 ,', 



n >, » i 



2 „ „ 1 

 2 „ „ 1 , 

 1^ males to 1 female. 

 2\ females to 1 male. 

 6£ „ „1 „ 

 9 „ »$ , 



8i „ „i „ 



2^ males to 1 female. 

 If females to 1 male. 

 1| „ 1 » 



H » „ i „ 

 m „ „ i » 



6i „ „ 1 „ 



9^ ;, i „ 



1 ,5 „ 1 „ 

 „ » 1 



Totals, 



3136 



930 



2206 





