Course Content
Introduction
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General characteristics of fishes
Fisheries
Desirable characteristics of fish for culture
Attributes of common carp that makes it suitable for culture
Biology of cultivated indigenous and exotic fish species
Importance of fish
Water Quality
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Temperature
Thermal stratification
Water temperature and fish growth
Temperature management in fishponds
Principle sources and sinks of oxygen in water
Measurement of dissolved oxygen
Dissolved oxygen requirements to fish
Solutions for maintaining dissolved oxygen in pond
Turbidity
Measurement of turbidity
Turbidity management in fish pond
pH
Phytoplankton and Zooplankton
Pond Management
0/11
Site selection for pond construction
Advantages of liming in pond
Inorganic fertilizers
Fertilization level depends on secchi disk transparency value
Application of organic and inorganic fertilizers
Feed formulation
Wild and predatory fishes
Problems of wild and predatory fishes in aquaculture
Aquatic Plants and their control
Classification of aquatic plants
Control of aquatic plants
Fish farming system
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Classification of fish farming system
Extensive fish farming system
Semi-intensive fish farming system
Monoculture
Polyculture
Conditions of fish for polyculture
Pond culture
Silent features of fish for cage culture
Management of cage fish culture
Pen Culture
Construction of pen culture
Raceway culture
Rice-fish farming
Suitable varieties of rice for Rice-Fish culture
Other types of cum fish farming
Fish breeding
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Selection of brood stock
Sex identification
Source of brood stock
Feeding
Care and management
Induced spawning or hypophysation
Breeding season of cultivated fishes in Nepal
Fecundity
Latency period
Spawning
Breeding of common carp
Stages of fish transportation
Stages of fish transportation
Conditioning of fish
Methods of packaging and transportation of fish
Fish Disease and Parasites
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Signs of sickness of fish
Fungal diseases of fish
Bacterial disease
Protozoan disease
Disease caused by worms
Disease caused by crustaceans
Asphyxiation
Learn Principles of Aquaculture with Rahul
About Lesson

The breeding season of cultivated fishes in Nepal

Fish species

Breeding season

Common carp

Feb.-March; Sept.-Oct.

Silver carp

May-July

Bighead carp

May-July

Grass Carp

April-May

Rohu

June-August

Mrigal

June-August

Catla

June-August

Nile tilapia

Year-round except in winter
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