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Intro to aquaponics occ
- 1. Inspiring Passion andpurpose through the discovery of arts and sciences.
- 2. World Fisheries • Wehave lost at least 2000 species due to overfishing with 70% of fish stocks overfished and endangered of collapse
- 3. • Because weare so efficient at catching. No longer “fishing”
- 4. • There areenough long line hooks “catching” to circle the globe 550 times • You could fit 13 jumbo jets through the mouth of the largest trawling nets.
- 5. Top consuming countries #1Portugal 178 lbs/person/ year #2 Japan 155 lbs/person/year #3 Singapore 133 lbs/person/year • USA 16lbs/person/year
- 6. • Healthy, wearen’t going to stop eating it • 2 Billion more people will be here in 20 years • How do we feed them And us?
- 9.
- 10. Aquaculture: The growing ofaquatic organisms
- 11. What is neededfor Aquaculture • Organism capable of reproducing or growing in the captive system • Beneficial bacteria • Good water quality • Good food • Oxygen
- 12. • Aquaculture providesnearly 50 percent, of the annual world fisheries production of 110 million tonnes of food fish in 2006.
- 13. • Half ofall aquaculture production is finfish, a quarter is aquatic plants and the remaining quarter is made up of crustacea (such as shrimp, prawns, crabs) and molluscs such as clams, oysters and mussels.
- 16. Most popular aquaculturedspecies in the US • #1 Catfish • Tropical fish • Water plants for ponds and lakes • Clams, oysters, mussels, • Tilapia • Baitfish
- 17. Hydroponics • The growingof plants in nutrient solutions with or without an inert medium (as soil) to provide mechanical support
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- 20. What’s needed forHydroponics • Nutrients • Water • Light • Aeration around their roots • NO SOIL!!!!
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- 25. • Lettuce andtomatoes are the top “legally” grown hydroponic plants in the US
- 26. What is Aquaponics? •Aquaponics, the combination of Aquaculture and Hydroponics, is an integrated, soiless system for growing fish and plants.
- 27. • Aquaculture +Hydroponics
- 28. Aquaponics What is neededfor Aquaponics? • Fish • Fish feed • Beneficial nitrifying bacteria • Plants • Good Water Quality • Oxygen
- 29. Why? • 90% lesswater used • Year round production • Clean, sustainable, food production • Intensive production in small space • No weeding, no gophers, no snails or slugs, no bending over • Aquaponic systems can also be ornamental with Koi and flowering plants to brighten an outdoor living space.
- 32. Fish • Ornamental orFoodfish? Guideline: 1lb / 8-10 gallons of water
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- 34. Components • Fish tank •Grow tank/ media for plants • Mechanical Filtration • Biological Filtration • Aeration • Water pump • Pipes for water flow • Sun or lighting
- 35. 3 crops- fish,plants, and beneficial bacteria Fish system Grow bed (Filter) Circulation
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- 38. Media • Supports/protects theroots • Can be the filter for the system • Provides surface area for bacteria • Remineralization At least 12” Deep
- 39. Water Chemistry is IMPORTANT •pH 6.5-7.0 • Ammonia <1ppm • Nitrite <1ppm • Nitrate 20-80ppm • Alkalinity >20 • Phosphorus 30-60ppm, iron 1-3ppm, calcium (watch for deficiencies) slow fruit set or yellowing leaves • Potassium 100ppm • Dechlorinated water
- 40. Oxygen • Critically important! •>5ppm • Diffusers, or break surface tension ( waterfalls)
- 41. Light • Only lightthe plant growing area- NO ALGAE • Plants need light and dark • Artificial light costs $ and generates heat • Many different choices for lighting including: Incandescent, fluorescent, High intensity Discharge lights(HID), LED, metal halides Important to know the life span of your bulbs
- 42. Different types ofgrowing systems • Nutrient Film Technique Guideline: ~3lbs fish / 11sq ft
- 44. Media beds Guideline: ~1lb fish/1 sq ft Surface Area At least 12” deep if filtering
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- 48. Raft Systems Guideline: ~4lbs of fish/ 10 sq ft raft
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- 53. 14 heads oflettuce every 30 days with 3 pounds of fish
- 54. 80 heads ofKale 30 lbs fish
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- 60. Inspiring Passion andpurpose through the discovery of arts and sciences. Next Class 12/6/14