Competitors for nutrition 15 , 34., 192 



Ccjciplete and specialty managements 70 



Compost 172 



Conochilus 32 



Constitution 6 



Constructive metabolism (anabolism) 1, 24 



Consumers , intermediate 28 



Consumption of oxygen 49 



Conveying belt , , 178« 



Cooking of the food 134, 135 



Coopers ' reed 42 



Copepods (hoppers) 13, 32 



Copper sulphate 157 



Corixa 13, 34, 35 



Corn 133, 137, 138 



Cornea, inflariimation of the 205 



Costia 84, 203, 204, 211 



Costs of production , , 189 



Costs , working , 189 



Counting of fish brood 173 



Counting of fish eggs 119 



Counting plate, Brandstetter's 119 



Counting plate , source of supply for Brandstetter' s 119 



Cover growth of algae 44. 



Cow dung 144 



Crabs, see shrimps 95, I33, I34, I36, 142 



Crane flies ( Tipulidae ) 36 



Cress, bitter 152 



Cress, swamp 152 



Crows 193 



Crucian carp and its culture 15, 91, 191 



Crude fiber 24 



Crude protein 18 



Crushing of food seeds 133 



Crustacea, bivalve (Ostracoda) 11, 12, 13, 32 



Crustaceae, shore 11 



Crustacean-parasitic diseases 210 



Crustaceans 32, 95, 191 



Cryptochironomus 33 



Cultivation of the pond bottom 85, I58 



Cultivators , 160 



Cultivators, disc type , IbO 



Cultivator machines (Pulverizers ) 160, Ibl-i*, 162 



Culture of pike 14, 91, 93, 106, 112, 191 



Culture, pnire 74 



Curds of milk 133, l^^Z 



Current-loving cold v/ater fishes 31 



Cybister (juggler) 34 



Cyclochaete 203, 211 



Cyclops 11, 13, 32, 35 



Cyclops species larvae of (NAUPLIAE) 32 



Cyprinides, nutrition intake , I5 



Cyprinus carpio, see carps 72* 



Cypris 11, 12 



Dactylogyrus 63, 84, 85, 208 



Dam breaks I5I 



Dam construction 63 



Dam destruction 192 



Dam pouring , , 64 



Dani, profile of 63 



Dam, protection by emergent water plants 41 



Damming (sluice) board 68 



235 



