Space quotient l^ 



Spawn carps, age of 77 



Spawn maturity, beginning and duration 96, 99, 100, 102 



Spawn trout 98, 99, 100, 101, 102, 105 



Spawn trout, age of 103 



Spawn weed (Pot-amogeton species ) 13, 171 



Spawn-trout pond, stock strength , 99 



Spawning carps, growing of 78 



Spawning of brook (brown) trout 95 



Spawning of carps , 81 



Spawning pond for carps 80, 82# 



Spawning ponds 80 



Sftawning trout, care of 100 



Spawning trout, feeding of 98, 99, 133 j 14-3 



Spawning trout, injury of 102 



Spawning trout, male 100, 101 



Spawning trout, selection and rearing 98 



Spawning trout, size of , , 102, 10^, 105 



Specialized and main managements 69, 70 



Specialty and complete managements 70 



Specialty management ••..•...... 89, 125, 190 



Sphaerium 33, 35 



Spider, water- 192 



Spiders , V^, 35 



Spleen 133, 13A, UO, La 



Spleen, dry \12 



Spleen feeding, sieve boxes for Li9 



Spring fish-out of one-year carps 86 



Spring trap 192 



Spring water , 152 



Stable manure 172 



Stagnophile animals , 31 



Standing barrels 18^, 185 



Starvation 6, 7 



Steamers (cookers) 135, 136{t 



Steaming I3/,, I35 



Steelhead trout 95 , 96 



Sterility of old trout 105 



Stickleback 14 



Stillwater loving animals (stagnophiles) 31 



Stimulating substances iS 



Stock calculation ..» 126 



Stock density, see stock strength 39, ^0, 127 



Stock fishes, management for 89 



Stock fishes, procuring of 78, I9I 



Stock, mixed 129, 130 



Stock number 128 



Stock number with feeding 130 



Stock numbers, average 130 



Stock numbers for tench , 90 



Stock spawn-carps 80, 81 



Stock strength and nutrient-animal production , 39, ^0 



Stock strength and nutrition evaluation 12, 38, 39, 39«- 



Stock strength of carp brood extension ponds 87 



Stock strength of carp nursery ponds 85 



Stock strength of fish transport utensils 186, 187 



Stock strength of hibernation ponds 183, 184. 



Stock strength of spawn-trout ponds 99 



Stock strength of the brood boxes 122 



Stocking 130 



Stocking, excessive I30 



Stocking, guide figures for I30 



255 



