what is aquaculture. photograph by hboi mariculture the husbandry marine organisms photograph by...
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What is Aquaculture
Photograph by HBOI
Mariculture
The husbandry marine organismsPhotograph by HBOI
Aquaponics
The husbandry of animals and plants together
Photograph by HBOI
Aquaculture is Agriculture
The husbandry of freshwater and marine organisms is no different than their terrestrial counterparts.Engineering, nutrition, health management, system and personnel management, marketing and business planning are comparable.
Fisheries stock enhancementBait productionOrnamentalsBiomedicalPhotograph by HBOIPhotograph by HBOIPhotograph by HBOIPhotograph 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
Commercially Cultured Species Photograph by HBOICatfishTilapiaTroutSalmon Striped BassOystersClamsShrimp
Research and Development Species SnapperCobiaFlounderPompanoSturgeonTunaConchLobsterPhotograph by HBOI
Phases of AquacultureBroodstockManagement
Aquaculture SystemsOpenNetpens, cages, longlines, bottom cultureSemi-closedPonds, raceways, tanksClosedraceways, tanks
Aquaculture systems: OpenOrganisms are reared in natural systemsNo diversion or pumping of waterFloating netpens, floating racks, longlines, on-bottom culture
Aquaculture systems: SemiclosedOrganisms are reared in manmade impoundmentsWater is diverted from natural flows or pumpedExamples are ponds and raceways
Aquaculture systems: ClosedWater is reused - little or no effluent Sophisticated water filtration and treatmentRecirculating aquaculture systems, aquariumsPhotograph by HBOI
Water SystemsFlow-through: one time use of water
Recirculation: reuse of water
Aquaculture systems: Flow-throughPretreatmentWaterSourceRearingTankEffluentPhotographs by HBOI
Flow-through aquaculture systemsDisadvantagesNo environmental controlSource of contaminants, pollutantsGreater regulatory constraints
Advantages Lower cost Simplicity Provides ambient food Requires lower skill level
Aquaculture systems: RecirculatingPretreatmentRearingTankWaterSourcePost treatmentEffluentWater treatment Biofiltration Disinfection
Recirculating aquaculture systemsDisadvantagesHigher costsHigher skill levelComplex system, potential problemsMust provide all feed Buildup of toxins & pathogens
Advantages Environmental control Free of outside contaminants Fewer regulatory constraints
Methods of Cultivation Extensive vs. IntensiveExtensive = Utilize natural productivityLow densityNo or supplemental feedsLow water exchangeIntensive = Maximize productionLimited spaceHigh densityComplete dietHigh water exchange