Photograph by HBOI Mariculture The husbandry marine organisms (the care, cultivating and breeding of crops and animals) Photograph by HBOI The husbandry of animals and plants together Photograph by HBOI Fisheries stock enhancement Bait production Ornamentals Biomedical Photograph by HBOI How many of you eat seafood? Aquaculture production in North America is valued at $1.5 billion About 40% of the seafood we eat is from aquaculture farms About 40% of the seafood we eat is from aquaculture farms Commercially Cultured Species Photograph by HBOI Catfish Tilapia Trout Salmon Striped Bass Oysters Clams Shrimp Research and Development Species Photograph by HBOI Snapper Cobia Flounder Pompano Sturgeon Tuna Conch Lobster Phases of Aquaculture BroodstockManagementBroodstockManagement HatcheryProductionHatcheryProduction NurseryProductionNurseryProduction Grow-outGrow-out Harvest & Market Aquaculture Systems Aquaculture systems: Open Aquaculture systems: Semiclosed Aquaculture systems: Closed Photograph by HBOI Water Systems Aquaculture systems: Flow-through Pretreatment Water Source Rearing Tank Effluent Photographs by HBOI Flow-through aquaculture systems Advantages Lower cost Simplicity Provides ambient food Requires lower skill level Aquaculture systems: Recirculating Pretreatment Rearing Tank Water Source Post treatment Effluent Water treatment Biofiltration Disinfection Recirculating aquaculture systems Advantages Environmental control Free of outside contaminants Fewer regulatory constraints Methods of Cultivation Extensive vs. Intensive Intensive = Maximize production Limited space High density Complete diet High water exchange