site selection developed by the harbor branch acted staff
TRANSCRIPT
Site SelectionSite Selection
Developed by the Harbor Branch ACTED staff
What is the perfect site?What is the perfect site?
• Location• Climate• Culture
Site SelectionSite Selection• Location of culture facilityLocation of culture facility
• Type of culture systemType of culture system
• Species selectedSpecies selected
• Biophysical requirementsBiophysical requirements
• Processing & MarketingProcessing & Marketing
• Legal RestrictionsLegal Restrictions
• Economic ClimateEconomic Climate
Production MethodsProduction Methods
Ponds Raceways Cages
Bottom culture Net pens Recirculating systems
US Farms by Method of Aquaculture US Farms by Method of Aquaculture Production UsedProduction Used
Levee Pond CultureLevee Pond Culture
Levee ponds are the most common fish production method
Common food species– catfish– hybrid striped bass– tilapia
Site selection– topography– pesticides– utilities– drainage– wetlands– clay content
Construction– levee– depth– slope– water – drains
Production rates500 – 3000 kg/acre
Levee PondsLevee Ponds
Time spent analyzing a site is time well spent
Many problems associated with levee ponds can be traced back to poor site selection
Site SelectionSite Selection
RacewaysRaceways
Water supply– use large
quantities of water
– gravity springs are most economical
Location– near water supply
Photograph by HBOI
CagesCages Site selection
– water sources– water quality
Types– round– rectangular
Photograph by HBOI
Cage PlacementCage Placement Specifications
– open areas of water to allow good circulation
– provide space between cages
– number depends on size of pond (carrying capacity)
Net PensNet 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
Net PensNet Pens
Photograph by HBOI
Recirculating SystemsRecirculating SystemsSite components
– building– tanks– filtration– pump house– emergency generator– 3 phase electricity– bulk feed storage– oxygen supply
Photograph by HBOI
Building ConstructionBuilding Construction
Enclosed & Semi-enclosedPhotograph by HBOI
Photograph by HBOIPhotograph by HBOI
Culture TanksCulture Tanks
Photograph by HBOIPhotograph by HBOI
Water FlowWater Flow
Photograph by HBOI
Photograph by HBOI
Water RequirementsWater Requirements Ponds
– 10 – 25 gallons per minute per surface acre Raceways
– 500 gallons per minute Recirculating Systems
– Daily exchange rate average of 10 – 20%
Species SelectionSpecies Selection• Biological Considerations
- Water Temperature & Water Quality- Fresh, Brackish, Saltwater- Growth Rate- Feeding Habits- Reproduction- Hardiness- Productivity
• Marketing• Economics
Always Remember Your Production Strategy: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”