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Site Selection

Site Selection. Developed by the Harbor Branch ACTED staff. What is the perfect site?. Location Climate Culture. Site Selection. Location of culture facility Type of culture system Species selected Biophysical requirements Processing & Marketing Legal Restrictions Economic Climate.

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Site Selection

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  1. Site Selection Developed by the Harbor Branch ACTED staff

  2. What is the perfect site? • Location • Climate • Culture

  3. Site Selection • Location of culture facility • Type of culture system • Species selected • Biophysical requirements • Processing & Marketing • Legal Restrictions • Economic Climate

  4. Production Methods • Ponds • Raceways • Cages • Bottom culture • Net pens • Recirculating systems

  5. US Farms by Method of Aquaculture Production Used

  6. Levee Pond Culture • Levee ponds are the most common fish production method • Common food species • catfish • hybrid striped bass • tilapia

  7. Levee Ponds • Site selection • topography • pesticides • utilities • drainage • wetlands • clay content • Construction • levee • depth • slope • water • drains • Production rates 500 – 3000 kg/acre

  8. Site Selection • Time spent analyzing a site is time well spent • Many problems associated with levee ponds can be traced back to poor site selection

  9. Raceways Water supply • use large quantities of water • gravity springs are most economical Location • near water supply Photograph by HBOI

  10. Cages Photograph by HBOI • Site selection • water sources • water quality • Types • round • rectangular

  11. Cage Placement Specifications • open areas of water to allow good circulation • provide space between cages • number depends on size of pond (carrying capacity)

  12. Net Pens • Organisms are reared in natural systems • No diversion or pumping of water • Monitoring water quality is essential • Environments with high flow rates disperse fish wastes • Requires daily servicing of cages • High risk in hurricanes and tropical storms

  13. Net Pens Photograph by HBOI

  14. Recirculating Systems Site components • building • tanks • filtration • pump house • emergency generator • 3 phase electricity • bulk feed storage • oxygen supply Photograph by HBOI

  15. Building Construction Photograph by HBOI Photograph by HBOI Enclosed & Semi-enclosed Photograph by HBOI

  16. Culture Tanks Photograph by HBOI Photograph by HBOI

  17. Water Flow Photograph by HBOI Photograph by HBOI

  18. Water Requirements • Ponds • 10 – 25 gallons per minute per surface acre • Raceways • 500 gallons per minute • Recirculating Systems • Daily exchange rate average of 10 – 20%

  19. Species Selection • Biological Considerations • - Water Temperature & Water Quality • - Fresh, Brackish, Saltwater • - Growth Rate • - Feeding Habits • - Reproduction • - Hardiness • - Productivity • Marketing • Economics

  20. Always Remember Your Production Strategy: “to produce the optimal quantity of an proper sized animal in the shortest period of time by proper husbandry and stock manipulation”

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