Contents 前言 Unit 1About Aquaculture1 Unit 2Water Environment for Aquaculture4 Section 1Introduction4 Section 2Temperature6 Section 3Salinity7 Section 4pH9 Section 5Dissolved Oxygen10 Unit 3Basic Biology of Aquatic Species12 Section 1Characteristics of Fish Flesh12 Section 2Basic Biology of Fish15 Section 3Growth23 Section 4Reproduction26 Unit 4Aquaculture Genetics and Breeding32 Section 1Introduction32 Section 2Current Status of Aquaculture Genetics34 Section 3New Biotechnologies in Breeding40 Unit 5Nutrition and Feeding47 Section 1Introduction47 Section 2Nutrient Requirements for Aquatic Animals48 Section 3Broodstock and Larval Nutrition54 Unit 6Diseases and Health Management in Aquaculture60 Section 1Introduction60 Section 2Diseases in Aquaculture62 Section 3Health: a Constraint to Aquaculture65 Section 4How to Minimize Disease Risks67 References75 Appendix79