The revised third edition is a comprehensive and better illustrated book covering the major aspects of freshwater aquaculture within Asiatic region with particular focus on the Indian context. In the present revised edition, an attempt has been made not only to update the information but also three additional chapters such as Biotechnology in Aquaculture, Fisheries Extension Education and Ornamental Fish Production and Management are incorporated for the graduate and postgraduate students in the subject concerned. Hope this book would facilitate the teaching of the subject in Colleges and Universities as per their syllabi.

Contents:
1. I. General Considerations in Aquaculture - Introduction; History of Aquaculture; Development of Fish Culture; Purpose of Aquaculture; Importance of Aquaculture; Advantages of Finfish Culture; Categories of Farms; Categories of Fish Farming System; Basic Considerations in the Selection of Species for Culture; Cultivable Freshwater Finfishs.

II. Biology of Cultivable Finfishes - Biology of Carps; Biology of Important air breathing fishes; Biology of Important Catfishes; Notes on Important Larvicidal Fishes; Notes on exotic Food Fishes in India; Food and Feeding Habits; Factors influencing feeding; Reproduction.

2. Aquatic Environment- Introduction; Productivity and ecological bioenergetics; Water quality and Soil Conditions of Fish Ponds; Nutrient dynamics; Micro-organisms and nutrient cycles; Management of soil and water for aquaculture

3. Predatory and Weed Fishes - Introduction; Examples of Predatory and Weed Fishes; Role of Predatory and weed fish in Pond; Eradication of Predatory and Weed Fishes; Methods of Eradication.

4. Aquatic Insects and Their Control - Introduction; Aquatic insects; Control of predatory insects.

5. Common Freshwater Aquatic Weeds - Introduction; Aquatic Weeds; Control Measures.

6. I. Artificial Propagation - Introduction; Structure of Ovary; Development Stages of Ovary; Structure of the testes; Development Stages of testes; Age at Maturity; Fecundity; Factors affecting Fecundity; Fecundity of Cultivable Carps; Ecological Conditions in gonad Development; Relation between endocrine system and reproduction in fishes; Pituitary Gland; Interrenal/Corpuscles of Stannius; Thyroid; Adrenal gland; Granulosa Cells; Urophysis; Pineal; Ultimobranchial gland; Pancreas; Types of hormones.

II. Hypophysation - Introduction; Pre-requisites for induced spawning of Carps; Inducing agents; Methods of injection; Specification of needle and procedure for administration of injection; Seasons for inductions of spawning; Alternative inducing agents; Response time; Spawning enclosures; Estrous and Spawning; Artificial fertilization; Methods of degumming and Stripping; Methods of Stripping; Comparison between two Fertilization methods; Bundh breeding; Techniques of breeding operation; Collection and hatching of eggs; Factors influencing carps in bundh breeding; Additional features adopted in-dry bundhs; Problems encountered in bundh breeding; Production of catfish Seed in bundhs.

7. Embryonic Development and Incubation - Embryonic development; Incubation; Indices used in incubation; Management; Carp seed transportation.

8. Structural Features of a Fish Farm - Construction of a Fish Farm; Site Selection; Size and depth of the ponds; Dyke; Ratio between different ponds; Pond renovation; Maintenance; Placement of different types of ponds in a Fish Farm.

9. Pond Fertilization - Significance; Organic manures; Varieties of Inorganic fertilizers.

10. Fish Feed - Introduction; Nutritional requirement of finfish; Physiological approach to nutritional bioenergetics; Varieties of fish feeds; Formulated Feeds; Diet Processing; Management of Feeding; Nutritional diseases.

11. Fish Diseases and Fish Health Management- Introduction; Major types of fish diseases; Significance of fish diseases control; Principles of fish health management.

12. Application of Genetics and Aquaculture - Introduction; Genetic improvement of stock; Selection; Basis for Selection; Methods of Selection; Response to Selection; Different methods of breeding; (1) Mendel’s law; (2) Genetics of qualitative phenotypes; (a) Possibilities of Genotype phenotype in F1 and F2 generations; (b) Linkage; (c) crossing Over; Sex linked genes; Sex-limited phenotypes; Genes with multiple alleles; Genes exhibit pletrophy; Quantitative phenotypes; Hybridisation; (a) Sex manipulation; (b) Chromosomes; (c) Chromosomal aberation; Fish genomic; Chromosomal manipulation; Gene engineering; Genetic markers; Genetic conservation of fish.

13. Global Scenario - Introduction; Finfish production; Crustacean production; Molluscan production; Seaweed production; System of freshwater fish culture; Carp culture; Sewage fed Fish culture; Water logged and Swamps for air breathing fish culture; Fish culture in cages and pens; Running water Fish Culture; Fish culture in rice fields; Freshwater prawn culture; Freshwater Pearl culture; Integrated fish culture; Economic efficiency; Management; Organic aquaculture.

14. Pollution - Introduction; Types; Sources; Effects; Cause of pesticide pollution; Preventive measures and recommended limit.

15. Fisheries Extension Education - Introduction; Definition; Key element in non formal education; Need of aquaculture extension; Objective; Functions of extension; Principles of extension; Scope of extension; Extension efforts - A review; Qualities of an ideal extension officer; Principles of diffusion of technology; Diffusion of technology system (DTS); Diffusion method; Aquaculture extension schemes; Concept of rural sociology; Psychology; Principles of extension programme planning; Participatory approach in extension; Shift from culture to livelihood security; Emerging issues of extension; Use of modern technologies in extension; Significance of ITK (Indigenous technical Knowledge); New strategies in extension; Conclusion.

16. Biotechnology in Aquaculture - Importance; Development; Study of genetic variation; Isozymes; DNA Markers; Characteristics of marker; Studies in India; Genotoxicity assays; Sperm crypreservation Protocol; Fish transgenesis; Scope; Progress in India; Steps for production of transgenic; Interest genes for transgenic fish; Benefits of transgenic Organisms; Issues of genetically modified organisms; Biotechnological prospects in aquaculture.

17. Ornamental Fish Production and Management - Introduction; Important consideration; Ornamental fish resources; Breeding; Strategies for development; Brackish water ornamental fishes; Marine ornamental fishes; Aquarium setting; Ornamental fish trade; Conservation Strategies; Marine Aquarium council (MAC); Role of MEPDA; Constraints.