R. Charlie Shultz
Transcript of R. Charlie Shultz
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R. Charlie Shultz
North Central Aquaculture Conference
Feb 23, 2014
Toledo, OH
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Environmental Pollution
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Recirculating Aquaculture
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University of the Virgin Islands
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Kentucky Aquaponics
Kentucky State University
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Lethbridge College
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What is Aquaponics?
Not Just Hydroponics plus Aquaculture
Balanced or De-Coupled
Commercial or Smaller
Don’t ask the Regulators or Inspectors! Educate them.
Associations
Certification
Is it Organic?
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Development of a Mature Ecosystem
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Aquaponics vs. hydroponics
Yield 2003
Tomatoes Cucumbers 0
10
20
30
40
50
60
Yie
ld, kg
/m2
70
80
Aquaponics
Hydroponics
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Aquaponics vs. hydroponics
Yield 2004
Tomatoes Cucumbers 0
10
20
30
40
50
60
Yie
ld, kg
/m2
70
80
Aquaponics
Hydroponics
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Aquaponics Hydroponics
Rosemary
roots
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Balanced Aquaponic Systems
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Hydroponic tanks
Rearing tanks
Effluent line
Sump
Clarifier
Filter tanks Return line
Base addition
Degassing
UVI System Layout
Total water volume - 29,000 gallons Land area - 1/8 acre
2,300 ft2 plant area
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Keep Feed Input Relatively
Constant Provides a constant level of nutrients for plant growth
Two methods:
(1) Multiple rearing tanks and staggered production Example: UVI system, 4 rearing tanks, 24-week production cycle, one tank harvested every 6 weeks, feed input decreases ~80% in harvested tank, feed input to system decreases 25-30% at harvest Advantages: saves labor, good control of stock Disadvantages: wasted space, higher capital cost
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Keep Feed Input Relatively Constant
(2) A single rearing tank with multiple size groups of
fish (sequential rearing):
Example: 6-month production cycle, 6 size groups,
monthly harvest of large fish with grader,
restock equal number of fingerlings
Advantage: conserves space, reduces capital costs
Disadvantage: increases labor costs, increases
mortality, disrupts feeding, stunted fish
accumulate
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De-coupled Aquaponic Systems
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Alberta, Canada
Lethbridge College
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Current Prairie Fishermen Corp Noblesford, AB
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Education Conferences
Specialized Courses
Internet
Books
Extension specialists
Internships
University
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Marketing the Story
• Tell the Positive Attributes
• Ecotourism
• Niche Crop Mix
• Do Your Market Homework First!
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It’s a Great Story!
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Which species of fish?
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Sludge Management Discharge it Mineralize it (zero-discharge)
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System Design
NFT
Media
Deep Water Culture
Aeroponics
Hybrid
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Nutrient Film Technique (NFT)
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Media Based Systems
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Deep Water Raft Culture (DWT)
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Controlled Environment Option
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Urban Aquaponics Aquagrowers (Livonia, MI) Foodchain (Lexington, KY)
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Fish, Plant and Human Health Non-approved inputs NOT allowed
IPM and Biological Controls for Plant Pest Management
Best Husbandry Practices and Quality Diet for Fish
Maintain optimal WQ conditions for both fish and plants
Food Safety must be addressed
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Vendors
Supplies
Courses
Fish
Plants
Pest Control
Greenhouse
Heat/Cooling
Lighting
Processing/Marketing
Beware of the Aquashyster!
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Are You Making Money? Economies of Scale
Analyze Financial Statements
Do an Energy Audit
• You Don’t Make Money Growing Fish and Plants…
• You Make Money SELLING them!