Eggs, stripping of sticky 109 



Eggs , supporting of 110 



Eggs, temperature variations with carp 82 



Eggs, testing of fertilization in 116 



Eggs, trout 1U«, 196 



Eggs , unpacking of fish 118 



Eggs, von dem Home's apparatus for hatching small 112 



Eineria 205 



Electrical fish trap 174 



Elephant Crustacea (Bosmina) 11, 32 



Elodea 43 



Emaciation 6, 7 



Ehaclation during hibernation 6, 7 



Bnergency nutrition 11, 12 



Einergent plants , 41 



Emergent water plants and evaluation of nutrient-animals 42 



Endochironomus 33 



Enemies, brood 121, 164, 192 



Enemies of fishes , , 192 



Energy content of the nutrition 19 



Energy conversion , 2, 4 



Energy conversion and temperature 4 



Energy requirement , total , 3 



Enrichment with lime 55 



Environmental factors , rule of action of 30 



Enzymes (ferments) 16, 17 



Ephemera 34, 35 



E^hemerides , 12 



Epidemic diseases 201 



Epidemics , red 201 



Equisetum (horsetail) 42 



Ergasilus 211 



EsQX lucius, see pike 14, 92, 93, 106, 112, 191 



Eudorina 84 



Burycercus, see lentil crab ,. 11, 12, 32, 34 



Eurytype 94 



Eutrophy 30, 32, 59 



Evaluation of food animals .->... 40 



Evaluation of lime content , 57, 58 



Evaluation of nutrient-animals and emergent water plants 41 



Excretion factor 110 



Exhausting of food supply 38 



Explosions 193 



Extension ponds 88 



Extensive operation 70 



Extractive substances, nitrogen-free 17, 18 



Eye dependence of fishes 15, 16 



Eye point stage 115 



E^re, worm cataract of the 192, 208 



Factor of space 47, 83, 99, 124 



Factors of growth , 5, 6 



Factors, paratypical * 6 



E^llowness 158 



F^llowness , s\immer 158 



Fallowness , winter 158 



Fat 17, 18, 19, 23 



F/b coefficient, yearly fiah flesh production to average amount of bottom animals .. 40 



Feeding-competent trout brood, setting out 121 



Feeding, excessive 198 



Feeding, initial Ill, 121, 149 



Feeding of brood, see trout brood feeding 149, 150» 



Feeding of parent fishes 77, 98, 99, 100 



238 



