Title: Explain recirculating systems.
Course: Aquaculture Infusion Units (AIU) > Section: Comparing Types of Aquaculture Operations

Explanation should include

- design of recirculating systems (e.g., silo, circular tanks)
- site selection
  - water sources/availability
  - access to energy
  - effluent

- species suitability
- essential components
- aeration
- removal of particulate matter
- biological filtration
- engineering/construction
  - address given formulas and a case situation
  - determine the size for a flow-through system including shape, capacity, depth, and construction

- maintenance
- preventive controls/biosecurity (BMPs)
- advantages of recirculating systems
- disadvantages of recirculating systems
- stocking densities based on species and size of recirculating system
- factors of production.

Process/Skill Questions:

- What are the advantages and disadvantages of using a recirculating system vs. using a pond or raceway system?
- Why is maintenance important?
- What are some causes of crop loss in recirculating systems?
- What are some preventative measures for reducing crop loss in recirculating systems?