- 1. Aquaponics is a sustainable farming method that combines aquaculture (raising aquatic animals) and hydroponics (growing plants in water) in a symbiotic environment. In aquaponics, fish waste provides nutrients for the plants, and the plants filter the water, creating a closed-loop system that is efficient and environmentally friendly. This system mimics natural ecosystems and can be used to grow a variety of plants and fish, making it a versatile and innovative approach to food production. Aquaponics requires less water and space compared to traditional farming methods, and it can be done on a small scale in home gardens or on a larger commercial scale. By utilizing natural processes and reducing the need for synthetic fertilizers and pesticides, aquaponics offers a more sustainable and organic way to produce fresh food.
What is aquaponics?
A) A system that combines aquaculture and hydroponics.
B) A form of seaweed cultivation.
C) A type of fishing technique.
D) A method of growing plants in soil.
- 2. What is the primary nutrient source in aquaponics?
A) Volcanic rock dust.
B) Chemical fertilizers.
C) Rainwater.
D) Fish waste.
- 3. What is the role of bacteria in an aquaponic system?
A) To regulate the water temperature.
B) To convert toxic ammonia into nitrates for plants.
C) To scare away pests.
D) To provide shade for fish.
- 4. What is important to consider when selecting fish for aquaponics?
A) Their size and color.
B) Their ability to perform tricks.
C) Their age and gender.
D) Their waste production and compatibility with the system.
- 5. What is the role of aeration in an aquaponic system?
A) To reduce nutrient levels.
B) To cool down the water temperature.
C) To provide oxygen for fish and beneficial bacteria.
D) To circulate water between the fish tank and grow bed.
- 6. Which nutrient is crucial for plant growth in aquaponics?
A) Calcium.
B) Iron.
C) Nitrogen.
D) Vitamin C.
- 7. What is the nutrient deficiency called when plants lack iron in aquaponics?
A) Cytoplasm.
B) Chlorosis.
C) Photosynthesis.
D) Mitosis.
- 8. What do plants in an aquaponic system absorb from the water?
A) Oxygen.
B) Nutrients.
C) Salt.
D) Sunlight.
- 9. Which of the following is NOT a main fish grown in aquaponics?
A) Barramundi
B) Catfish
C) Tilapia
D) Salmon
- 10. Which of these is a main plant produced in aquaponics?
A) Rice
B) Lettuce
C) Corn
D) Wheat
- 11. What type of system uses perforated floating rafts with net plant pots?
A) Nutrient film technique
B) Vertical farming
C) Media-based grow bed
D) Deep water culture
- 12. In which aquaponic system type are roots partially immersed in a thin layer of streaming water?
A) Nutrient film technique
B) Hydroponics
C) Deep water culture
D) Media-based grow bed
- 13. Which material is NOT typically used in deep water culture systems?
A) Pumice
B) Rockwool
C) Coco
D) Clay
- 14. Which of the following plants is typically grown using aquaponics?
A) Barley
B) Potatoes
C) Cucumbers
D) Oats
- 15. Which of these is a common plant medium used in deep water culture systems?
A) Loam
B) Rockwool
C) Sandy soil
D) Clay pellets
- 16. Which ancient civilization is credited with cultivating agricultural islands known as chinampas?
A) Indians
B) Chinese
C) Aztecs
D) South East Asians
- 17. What is the Chinese term for 'framed paddy' used in floating raft rice cultivation?
A) Jiatian (架田)
B) Wangzhen
C) Fengtian (葑田)
D) Niqiu
- 18. What was the primary source of nutrients for plants in traditional Chinampa systems?
A) Commercial fertilizers
B) Fish waste from integrated fish culture
C) Manure from livestock
D) Eutrophic or semi-eutrophic lake sediments
- 19. Where has an integrated system of aquaculture and agriculture where fish are grown in rice paddies been employed since the 1930s?
A) New Alchemy Institute
B) South Carolina Agricultural Experiment Station
C) North Kerian area of Perak in Peninsular Malaysia
D) German aquaponics research centers
- 20. In which year did Scherb and Braun provide detailed studies on raising rainbow trout in recirculating systems?
A) 1977
B) 1973
C) 1965
D) 1971
- 21. What species were used by Loyacano and Grosvenor to clean fish ponds using water chestnut plants?
A) Common carp
B) Channel catfish
C) Tilapia
D) Rainbow trout
- 22. Which of these is an optional component that can be used to circulate treated culture water back to the rearing tanks?
A) Settling basin
B) Rearing tank
C) Biofilter
D) Sump
- 23. Which city is known for entrepreneurs using vertical designs in aquaponics?
A) Chicago
B) New York City
C) Miami
D) Los Angeles
- 24. Where is an aquaponic gardening system developed for use on rooftops?
A) Jerusalem
B) Hebron
C) Ramallah
D) Gaza City
- 25. What type of grow beds did Mark McMurty's research at North Carolina State University utilize?
A) Sand-based grow beds
B) Gravel bed
C) Deep water culture hydroponic grow beds
D) Floating rafts
- 26. What is a method of feeding fish using composting grub growers?
A) Using synthetic feed pellets.
B) Feeding with chemical supplements.
C) Growing black soldier fly larvae.
D) Providing only plant-based food.
- 27. What did Balarin and Haller study in aquaponic systems?
A) Biofiltration techniques
B) Hydroponic solar ponds
C) Thermal dynamics
D) Nutrient dynamics
- 28. What did Dr. Nick Savidov's team discover about aquaponics systems in Brooks, Alberta?
A) They cannot be automated
B) They are ineffective with trout
C) They require high pH levels for plant growth
D) They can efficiently operate at low pH levels
- 29. What initiative did Barbados create to start home aquaponics systems?
A) The vertical garden
B) The hydroponic kit
C) The aquaponic machine
D) The organic farm
- 30. What is the origin of the suffix 'ponics' in terms like hydroponics and aquaponics?
A) Greek word 'ponos', meaning 'work'
B) French term for 'cultivation'
C) Spanish word for 'growth'
D) Latin word for 'water'
- 31. Which of the following helps make micronutrients available to plants in aquaponics?
A) Organic matter like humic acid
B) Pure water
C) Inorganic salts
D) Chemical pesticides
- 32. In what year did James Rakocy and his team begin experimenting with media beds in aquaponics at the University of the Virgin Islands?
A) 1986
B) 2009
C) 1997
D) 1979
- 33. Which plant can be grown with an aquaponics system to feed the same fish?
A) Potatoes
B) Tomatoes
C) Carrots
D) Duckweed
- 34. What term became more widely used after the Aquaponics Journal began publication in 1997?
A) Integrated fish/vegetable co-culture system
B) Combined fish and vegetable production in greenhouses
C) Aquaponics
D) Deep water culture
- 35. What is a significant factor that complicates the assessment of aquaponic profitability?
A) Fish growth rates
B) Energy expenses
C) Plant color variations
D) Soil quality
- 36. Which organization in Omaha, Nebraska uses aquaponics to provide food for disadvantaged communities?
A) Nebraska Food Bank
B) Whispering Roots
C) Omaha Community Foundation
D) Food Bank of the Heartland
- 37. Which type of tank was used to collect larger solid waste in Rakocy's initial aquaponics system?
A) Sand-based grow bed
B) Conical filter settling tank
C) Floating raft
D) Deep water culture tank
- 38. Which method of fish stocking involves moving fish between tanks using swimways and hatches?
A) Sequential rearing
B) Batch rearing
C) Stock splitting
D) Multiple rearing units
- 39. What is considered the most effective organic pesticide in aquaponics?
A) Diatomaceous earth
B) Pyrethrin
C) Spinosad
D) Neem oil
- 40. What material were the floating rafts constructed from in Rakocy's aquaponics experiments?
A) Polystyrene
B) Gravel
C) Expanded clay
D) Sand
- 41. What type of compounds are essential for plant growth in an aquaponic system?
A) Inorganic nutrients alone
B) Organic compounds produced by microbial decomposition
C) Synthetic hormones
D) Chemical fertilizers
- 42. What is the maximum bio-mass of fish recommended per gallon in aquaponic rearing tanks to reduce stress and promote healthy growth?
A) 0.5 lbs
B) 1.0 lb
C) 0.25 lbs
D) 0.75 lbs
- 43. Which bacteria are responsible for oxidizing ammonia into nitrite?
A) Nitrobacter
B) Escherichia coli
C) Lactobacillus
D) Nitrosomonas
- 44. Where did the first aquaponics research in Canada begin?
A) University of the Virgin Islands
B) Lethbridge, Alberta
C) North Carolina State University
D) Brooks, Alberta
- 45. Who led the team to create a low-cost aquaponics system in Bangladesh?
A) Prof. L. Ahmed
B) M.A. Salam
C) S. Rahman
D) Dr. R. Kumar
- 46. What type of control measures are highly proficient for pest and disease prevention in aquaponics?
A) Chemical treatments
B) Mechanical barriers
C) Genetic modification
D) Non-chemical prophylactic measures
- 47. Which scientist published 'Combined Production of Fish and Plants in Recirculating Water' in 1977?
A) Sengbusch
B) Ludwig C.A. Naegel
C) Muir
D) Ronald Zweig
- 48. Who conceptualized the Integrated Aqua-Vegeculture System at North Carolina State University?
A) Dr. Nick Savidov
B) Mark McMurtry
C) Tom Speraneo
D) James Rakocy
- 49. How long do some researchers propose it takes for aquaponics to achieve financial equilibrium?
A) Two years
B) One year
C) Six months
D) Five years
- 50. What is the foundation for what later became known as deep water culture?
A) Water chestnut plant integration
B) Activated sludge systems
C) Thermal dynamic studies
D) Floating raft systems
- 51. What is one result of automating processes in aquaponic systems?
A) Increased manual labor requirements.
B) Higher resource wastage.
C) Decreased efficiency.
D) Better crop yields.
- 52. Which of the following crops is profitable in aquaponic systems?
A) Wheat
B) Chinese cabbage
C) Corn
D) Potatoes
- 53. What percentage less fertilizer do aquaponic systems use compared to hydroponic systems?
A) 5%
B) 25%
C) 14%
D) 50%
- 54. What institute was founded by John and Nancy Todd and William McLarney in 1969?
A) German Aquaponics Research Facility
B) South Carolina Agricultural Experiment Station
C) North Kerian Aquaculture Center
D) New Alchemy Institute
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