Brackish Water Aquaponics PDF
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Brackish Water Aquaponics Anthony Adams*, Andrew J. Ray Graduate Student The Division of Aquaculture Kentucky State University, Land Grant Program [email protected] Inland Production of L. vannamei • Salinity range 1 to 20 part per thousand (ppt.) • Indoor and high tunnels recirculating aquaculture systems (RAS) • Two phase • Nursery • Grow out • Harvesting at 90 day Biofloc & RAS (BF) • Biofloc systems • High turbidity (NTU) • Microbial community • Algae • Bacteria • Protozoans • Uneaten feed and other organic matter • Benefits • Nitrification • Provide supplemental nutrition • Reduction in filtration • Requires high aeration, more inconsistent water quality Water Quality As water is reused, nitrogen Water is a resource accumulates • Constantly adding saltwater • Water changes Nitrogen impact on • Filter discharge shrimp • High mortality Solutions • Stunted growth and • More time spent monitoring varying sizes during water harvest • Large water change • Costly • Reduction in stocking density • Better filter • Aquaponics Aquaponics The marrying of aquaculture and hydroponics practice to produce a wonderful baby. • Fish and Feed • Nutrients form Aquaculture • Structural design of Hydroponics • Deep Water Culture • Ebb and flow • Nutrient Film Techniques • Coupled vs. decoupled Decoupled Aquaponics Aquaponics broken down to its base parts • RAS • Hydroponics • Remineralization Benefits • Reduced Stress on Aquatic organisms • Control of independent systems • Temperature independent • Warm-water shrimp and cool weather crops • Optimization of systems Trial materials • 16-24 buckets with, 3-4 plant per buckets and Polystyrene foam board • Seeds and planting trays • Airline and airstone • 10 mL to 18 L of treatment water (fresh, salt, shrimp biofloc) • 0-50 mL liquid fertilizer • 24 day timer and LED lights • Box fans • Randomize treatment • Grow media • Rockwood cube • Perlite • Vermiculite • Net cup • GrowGrips Plants Cochlearia (Scurvy Grass) Beta vulgaris (Swiss chard) Scurvy Grass What is the salinity tolerance of Scurvy grass? • Germination successfully in perlite with freshwater 5 days • Place under LED light for 12 hrs. a day • 10 days later plants were give liquid Fertilizer at (3-2-6 NPK) 5 days later plants were transferred to grow grips and placed • in floating polystyrene of 6 flats • Mixed solution of 50mL liquid fertilizer per 18L • 300 mL of water • LED scheduled drop to 10 hrs. a day Scurvy Grass What is the salinity tolerance of Scurvy grass? Salinity adjustment occurred at 28 day from germination • Rate of 5 ppt. per day increase until treatment range was obtained • Treatment trials 0, 5,10, 15, 20, and 25 ppt. salinity
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