2. World Fisheries
• We have lost at least 2000 species due to
overfishing with 70% of fish stocks overfished
and endangered of collapse
3. • Because we are so efficient at catching. No
longer “fishing”
4. • There are enough 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
#1 Portugal 178 lbs/person/ year
#2 Japan 155 lbs/person/year
#3 Singapore 133 lbs/person/year
• USA 16lbs/person/year
6. • Healthy, we aren’t going to stop eating it
• 2 Billion more people will be here in 20 years
• How do we feed them And us?
11. What is needed for Aquaculture
• Organism capable of reproducing or growing
in the captive system
• Beneficial bacteria
• Good water quality
• Good food
• Oxygen
12. • Aquaculture provides nearly 50 percent, of the
annual world fisheries production of 110
million tonnes of food fish in 2006.
13. • Half of all 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.
14.
15.
16. Most popular aquacultured species in
the US
• #1 Catfish
• Tropical fish
• Water plants for ponds and lakes
• Clams, oysters, mussels,
• Tilapia
• Baitfish
17. Hydroponics
• The growing of plants in nutrient solutions
with or without an inert medium (as soil) to
provide mechanical support
28. Aquaponics
What is needed for Aquaponics?
• Fish
• Fish feed
• Beneficial nitrifying bacteria
• Plants
• Good Water Quality
• Oxygen
29. Why?
• 90% less water 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.
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
38. Media
• Supports/protects the roots
• 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
41. Light
• Only light the 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 of growing systems
• Nutrient Film Technique
Guideline:
~3lbs fish / 11sq ft
