160 



INDEX 



Meischer Ruesch, absence of food in 



Rhine fish, 110 

 Migrations, peculiar, 79 

 Migratory movements on coast, 50, 82 



NESS and Garry temperatures, 135 



Netting, importance of moderation in 



rivers, 76 



of salmon in sea, 77 

 and reduction of stock, 17 



Noel Paton, fresh water origin of 



salmon, 44 

 satiety of fish, 42 

 and Dunlop, nutrition, 118 



Nutrition of salmon leaving sea, 43 



PETER of the pools," 2 

 Parr, descent of on Pacific coast, 11 

 descent of at Stormont field, 2 

 scales of Norwegian, 11 

 of upper tidal water, varied size, 



21 



and smolts, feeding habits, 114 

 Patterson, J. Hume, salmon disease, 

 107 



REARING of smolts, 4 



Rutter, on parr of Pacific coast, 11 



SALMON, small spring, 39 



probable marine origin, 44 



entering other rivers, 78 



return to their own rivers, 78 



marks now in use, 58 



marking, 56 



small spring, scales of, 40 



disease, 107 



record weight of Scottish, 106 



fishing by set lines in Baltic, 35 



Salmonidae, majority marine, 44 



Saprolegnia ferax, 107 



Scales, development of in fry, 95 

 of salmon as records of life, 93 

 of marked smolts and spring fish, 



100 



of marked smolts and grilse, 99 

 lines of growth, 104 



Sea lice, life of in fish in rivers, 145 

 trout smolts, 5 



Smolts, uniformity in nature, 18 

 prevented from migrating, 7 

 destruction of at river mouth, 21 

 congregate in upper tidal waters, 



19 



two years in fresh water, 7, 17 

 eggs from ripe females, 8 

 or young grilse iu sea, 25 

 autumn migrations of, 22 

 confined in sea ponds, 9 

 food of in sea, 24 

 habits in sea, 27 

 marking in Tay, 29 

 scales, lines of growth, 98 



Spawning seasons of salmon, 12 

 habits of salmon, 14 

 annual and biennial, 60 

 mark on scales, 97 

 infrequency of, 102, 105 



Spring fish, ascending habits of, 89 

 spawning habits, 106 



Stormontfield experiments, 2 



Sutherlandshire rivers, temperature 

 of, 129 



TABLES of salmon marking results, 



63 



Tay, records of marked salmon, 70 

 Temperature of rivers, 123 

 Thurso, temperatures In spring, 130 

 Tosh and Grey, Tweed grilse, 42 



feeding of Tweed salmon, 113 

 Tributaries, entrance of by salmon, 



139 



Trout, feeding in estuaries, 5 

 in New Zealand, 6 

 estuarial varieties, 6 

 Tweed Commissioners, marking ex- 

 periments, 57 



WATER temperatures, 125 



Weight, increase between spawning 



periods, 84 

 Willis Bund, proportion of grilse in 



Tweed, 51 



^Printed by BALLANTYNE & Co. LIMITED 

 Tavistock Street, London 



