xiv. CONTENTS. 



CHAPTER XIV. MANAGEMENT OF MATURE TROUT. 



Maturity considered How mature trout are dealt with The net 

 Its use Emptying the pond Business pond differs widely 

 from a lake or river Trout eating trout Sorting the fish 

 Food The maggot factory Tadpole rearing Frogs and toads 

 considered Trout get very tame Approach of spawning time 

 Can trout hear Do fishes sleep The senses of taste and smell 

 Varieties of colour and markings How many species Selec- 

 tion and crossing of races Trout anadromous in New Zealand 

 Reversion to type Square tail and forked tail ... ... 261 



CHAPTER XV. SALMON CULTURE. 4 



Great loss in nature Large number of eggs deposited Bad 

 management of our rivers Some evils may be remedied- 

 Poachers considered Impounding salmon Where to get the 

 best eggs Nature's discrepancies provided for More about 

 poachers Fate of the eggs Falling off in catch of salmon 

 Rate of natural increase considered Feeding of salmon 

 Migration Experiments Smolts and grilse The United States 

 Salmon of Alaska Alaskan and British salmon compared 

 Saprolegnia ... ... ... ... ... ... 279- 



