Water Quality Management in Aquaculture Quiz

What is the most important factor affecting fish health in aquaculture production systems?

• Water quality

• Water temperature

• Oxygen concentration

• Salinity

What is the optimum pH range for pond fish production?

• 7.0 to 8.0

• 5.0 to 9.0

• 6.5 to 8.5

• 4.5 to 10

Which of the following is a method to measure turbidity in pond water?

• Chemical testing kits

• Stretching an arm into the water

• Electrical oxygen meters

• Using a thermometer

What should be done if the pH of pond water is below 6.5?

• Reduce fish stocking density

• Increase water temperature

• Use lime and alkaline fertilizers

• Add acid fertilizers

What is the recommended maximum concentration of un-ionised ammonia in pond water?

• 0.8 mg/l

• 0.2 mg/l

• 1.0 mg/l

• 0.5 mg/l