APPENDIX 



A RECORD OF SALMON-MARKING OBSERVATIONS 



IN SCOTLAND PREVIOUS TO THE OPERATIONS 



OF THE FISHERY BOARD IN 1896. 



Marking salmon for the purpose of gaining information as to 

 their migratory movements and their increase in weight has been 

 practised for a considerable time. Izaak Walton in his " Compleat 

 Angler" (1653) alludes to experiments of this kind in which 

 ribbons were tied to the tails of young salmon, and by which it 

 was ascertained that salmon return to the same locality after 

 visiting the sea. Writers of a later date do not always specify 

 the method of marking, although they state results which would 

 be of great interest were the proofs of their infallibility absolute. 

 A considerable amount of reliable information has, however, been 

 obtained from time to time in Scotland — exclusively, I think, on 

 migration and increase of weight — and I have attempted to collate 

 this information in the form of a list with tables. I omit from 

 the list references to smolt mai'king, as well as any records which 

 are without such particulars as alone can render them of value. 



Previous Scottish Salmon Marking. 



1823. In March, Mackenzie of Ardross marked a grilse kelt of 



d^ lb. The mai"k was of brass wire. 



In twelve months the fish was recaptured as a salmon 

 of 7 lb., showing an addition of 3| lb. in weight. 



1824. Mackenzie of Ardross marked a salmon kelt. The mark 



was wire round the tail. 



In 1825 he reports it as having been recaptured 

 "double the size." 



