Unit 4195: Comprehensive Aquaculture Practices

1. Introduction to Aquaculture

• Definition and scope of aquaculture
• Historical development and evolution
• Importance of aquaculture in global food security and economy
• Types of aquaculture systems:
  • Marine vs freshwater
  • Extensive, semi-intensive, and intensive systems

2. Aquaculture Species Selection

• Criteria for species selection:
  • Market demand and economic value
  • Environmental requirements (temperature, salinity, pH)
  • Growth rates and reproductive biology
  • Disease resistance
• Commonly farmed species:
  • Fish (e.g., tilapia, salmon)
  • Crustaceans (e.g., shrimp, crab)
  • Mollusks (e.g., oysters, clams)
  • Aquatic plants

3. Aquaculture Habitat Management

• Importance of habitat management
• Maintaining optimal water quality parameters
• Substrate and shelter considerations
• Environmental sustainability practices
• Managing natural and artificial habitats

4. Aquaculture Feeding and Nutrition

• Basic nutritional requirements of aquatic species
• Feed formulation principles:
  • Protein, lipids, carbohydrates, vitamins, minerals
  • Feed ingredients and their sources
• Feeding strategies:
  • Frequency, quantity, and methods
  • Automated vs manual feeding
• Impact of nutrition on growth and health

5. Aquaculture Disease Management

• Common diseases in aquaculture species
• Disease prevention strategies:
  • Quarantine, sanitation, biosecurity
• Diagnosis methods:
  • Clinical signs, laboratory testing
• Treatment options:
  • Chemical, biological, and management-based treatments
• Biosecurity measures to minimize outbreaks

6. Aquaculture Water Quality Management

• Key water quality parameters:
  • Temperature, dissolved oxygen, pH, ammonia, nitrites, nitrates
• Monitoring techniques and tools
• Maintaining optimal water conditions:
  • Aeration, filtration, water exchange
• Impact of poor water quality on species health

7. Aquaculture Production Systems

• Overview of production systems:
  • Ponds
  • Tanks
  • Raceways
  • Cages
• Design considerations for each system
• Operational procedures
• Advantages and limitations of each system

8. Aquaculture Sustainability Practices

• Resource conservation:
  • Water, feed, energy
• Waste management:
  • Solid waste, effluent treatment
• Ecosystem health and biodiversity considerations
• Promotion of environmentally friendly practices:
  • Integrated Multi-Trophic Aquaculture (IMTA)
  • Use of renewable resources

9. Aquaculture Harvesting and Processing

• Harvesting techniques:
  • Netting, draining, trapping
• Post-harvest handling:
  • Transport, storage, immediate care
• Processing methods:
  • Cleaning, packaging, value-added processing
• Quality control and safety standards
• Product diversification and marketing