Aquaculture Technician Industry Certification Practice Test

These questions are part of the practice quiz. Start practicing

• Which environmental benefit is associated with aquaponics?
• Carbon dioxide concentration is lowest in the morning. True or False?
• Which group includes aquarium species such as guppies and swordtails?
• Alligators and crocodiles belong to which order?
• Alligator eggs less than 24 hr old are slimy.
• BMP in aquaculture stands for what?
• Nitrification oxidizes ammonia and nitrite into ______?
• Aquaponics is important to the future of food production because it allows a grower to produce a large quantity of food in small space using minimal resources.
• In a typical alligator diet, which nutrient is most abundant?
• What is the primary purpose of monitoring water quality in an aquaponics system?
• This salmon is the largest of the Pacific salmon, averaging about 24 pounds when it returns to its natal river to spawn.
• ___________ acts as a powerful oxidizing agent, and it is toxic to fish at concentrations of less than 0.05 mg/L
• Successful introduction in the retail channel also requires the manufacturer to provide advertising. This is known as
• Which statement is true about the expiration of the aquaculture certificate?
• Which early morning condition lowers dissolved oxygen in outdoor ponds?
• The nitrogen cycle in an aquaponics system has three living organisms.
• How are alligator enclosures normally heated?
• What is the purpose of liming a pond with limestone?
• Which group nests use bubble nests and sticky mucus to stay together?
• Phytoplankton increase the oxygen content of the water in a pond.
• Shrimp can eat other shrimp.
• Which of the following is a fixed cost?
• Stress and/or poor water management may lead to brown spot disease in
• Which mosquito-borne disease is cited as affecting alligators?
• What saltwater pH range is considered ideal in aquaculture?
• _________ are the basic units of inheritance.
• Which type of fish would not be good for an aquaponics system?
• Shrimp are the most commonly cultured crustacean in the United States.
• Which term describes the ionized form of ammonia in water?
• What is the basic/alkaline range?
• Plants that attach themselves to the ground or bottom are referred to as what?
• 15 parts per million (ppm) is equivalent to which concentration in milligrams per liter?
• This term relates to the lower abdominal surface.
• Whirling disease is caused by which type of organism?
• Salmon are ______; they hatch in freshwater, migrate to saltwater, and return to freshwater to spawn.
• In freshwater systems, which nitrate level is ideal?
• Which pigment is commonly included in ornamental fish feed to promote bright coloration?
• All of the following are variable costs associated in an aquaculture business except
• In marine aquaculture, what is the typical salinity expressed in ppt?
• The difference between soft-shelled and hard-shelled crawfish is determined by environment management.
• A ______ is a specific process or activity that requires a certain amount of risk to make a profit.
• What average Fahrenheit temperature is used to incubate alligator eggs?
• Monitoring nitrite levels in water helps prevent which condition?
• What term refers to the money currently available in a business to pay salaries, expenses, dividends, and to purchase equipment?
• Which agency renews the aquaculture cert of registration?
• This infection affects oysters.
• Crawfish have a few diseases.
• The salinity of saltwater ranges from ______ parts per thousand?
• Which harvesting method is used for ornamental fish?
• A space for a 2-4 ft alligator is
• Which organism serves as a vital food source for all fish fry?
• Which hatch rate range best represents what producers expect for alligator eggs?
• Aquatic plants used for food could include all the following except
• The toxicity of carbon dioxide is greater than 20 mg/L. True or False?
• The two most common fish in this group are the kissing gourami and the Siamese fighting fish (betas).
• What does ras stand for in aquaculture?
• Which of the following is not a primary source of dissolved oxygen in outdoor systems?
• Which reproductive strategy describes fish that lay eggs and do not give birth to live young?
• Aquaponics is the integration of which pair?
• Where do alligators lay their eggs?
• Net Worth is defined as which of the following?
• An increase in pH means that water is more acidic.
• What term describes a juvenile oyster that has recently settled on a substrate?
• Alligators become easily stressed in captivity.
• What is the most commonly cultured crustacean in the United States?
• A process that removes particulate waste from aquarium water is called?
• When should a producer collect alligator eggs?
• Crawfish disease presence is known to be non-existent.
• Is the ideal nitrite level in freshwater 0 mg/L?
• Seed stock for alligators on farms is commonly sourced from which combination?
• Which anatomical structure enables clams to burrow into the substrate?
• Alligator farmers expect which hatch rate range to occur?
• During daylight, what is the effect of phytoplankton activity on dissolved oxygen in the pond?
• A pH water tester measures for _______ ions in the water?
• Which two bacteria are involved in the two-step nitrification process in aquatic systems?
• Antibiotics like oxytetracycline in the diet are used to treat which pathogen category?
• An aquatic plant used in wastewater treatment is which plant?
• Eggs should be gathered within how many hours after laying for optimal collection?
• The two main products of alligator culture are _____ and _______.
• Which feeding strategy do oysters primarily use?
• _____ is what business owns.
• Incubation is the time between which two stages?
• The primary purpose of aeration in aquaculture is to increase what aspect of water quality?
• A condition in which the blood cannot carry sufficient oxygen due to a deficiency in red blood cells is called?
• Which structure on a fish senses vibrations in the water?
• What is another term for a young oyster?
• ______ is the amount of money received periodically in return for goods, labor, or services.
• What processes in water produce carbon dioxide and what process uses it?
• Whirling disease in trout is caused by a protozoan parasite Myxobolus cerebralis. It affects the nervous system. Which disease is this?
• What is the primary function of the byssus in certain mollusks?
• The cost of feed represents a fixed costs.
• What is the scientific name for the American alligator?
• Denitrification results in release of which gas?
• Anchor parasite is caused by which type of organism?
• In aquaculture water quality, which statements are true?
• High dissolved oxygen in outdoor pond systems is caused by which condition?
• Which statement describes sources of dissolved oxygen in indoor fish systems?
• What is the average time to grow an alligator to harvest size?
• Seed stock for alligators on farms is commonly sourced from which combination?
• Which statements correctly describe the roles of Nitrosomonas and Nitrobacter in nitrification?
• What is the ideal saltwater pH for aquaculture?
• Which term describes equity provided by family members, reinvestment of retained earnings, lease agreements and loans?
• What is the term for the shells or substrate on which oyster larvae settle?
• The water depth to prevent drowning in baby alligators is 16 inches.
• Compared to traditional farming, aquaponics systems generally require:
• The aquaculture cert of registration expires on June 30th every year.
• In oyster production, what does the term clutch refer to?
• Carrageenan is an important chemical obtained from aquatic plants.
• Which statement about carotenoids in ornamental fish feed is true?
• Crab meat is not high priced.
• What does DO stand for in water quality terms?
• In general, an alligator diet is high in which nutrient and low in which nutrient?
• Which fish is commonly recommended for aquaponics systems due to hardiness and fast growth?
• Which infection is described as affecting oysters and is mentioned in the material?
• Myxobolus cerebralis causes which fish disease?
• Fish showing a general cotton-like appearance and color matching suspended materials in water indicates which condition?
• Chronic exposure to low levels of ammonia can lead to which of the following outcomes?
• If you have fifteen aquariums at home and do not sell any fish, do you need an aquaculture cert of registration?
• On an alligator farm, an alligator two feet long requires approximately how many square feet of space?
• In freshwater aquaculture, what is the ideal nitrate level?
• If you own several submerged land lease sites for shellfish culture, how many aquaculture certificates are required?
• By using a sticky mucous, the ____ fish group's nests will stay together.
• The difference between soft-shelled and hard-shelled crawfish is primarily due to management practices.
• Fish are ____ meaning their body temperature matches the environment.
• Which of the following is listed as a sign of stress in alligators?
• The ____ group includes guppies, swordtails, mollies, and platies.
• In an aquaponics system, which statement best describes the overall concept?
• Which statement about white bands around eggs is true?
• What structure allows fish to regulate their buoyancy in water?
• Fish that retain their eggs inside the body and give birth to live, free-swimming young.
• What freshwater pH range is considered ideal in aquaculture?
• What is the optimum pH range for plant species in aquaculture water?
• Which tract extends from the mouth to the anus and is the body's main digestive tube?
• Profitability is defined as subtracting all costs from expected revenues.
• Which option is not a listed group of states allowed to collect wild alligator eggs?
• Which statement about the early appearance timeline of alligator eggs is accurate?
• Incubation duration for alligators is typically between which pair of day ranges?
• What water depth prevents drowning for baby alligators?
• Compared to other systems, how much water quality monitoring does aquaponics require?
• Nitrobacter bacteria break down ___________ into ____________ in an aquarium or aquaponics system
• Which states allow collection of wild alligator eggs for farming?
• Which term refers to the silky threads mollusks secrete for attachment?
• Which type of filter in an aquarium houses beneficial bacteria to break down fish waste into nitrate?
• Shrimp are capable of cannibalistic feeding on conspecifics.
• Crab meat is not high priced.
• GAqPs stands for what in the context of aquaculture?
• Neutral pH is 7.
• What effect does increased water temperature have on oxygen content in the water?
• Which disease is spread by mosquitoes and alligators are highly susceptible to?
• A process by which air is circulated through water, usually through movement or air stones, is called?
• All of the following are methods to harvest ornamental fish except which?
• Plants that float freely are called what?
• Unionized ammonia nitrogen is lethal at which pair of mg/L values?
• In a basic aquaculture husbandry protocol, how often should alligators be fed?
• What is the ideal freshwater pH for aquaculture?
• Which term describes stress when an alligator looks toward the sky?
• Assets minus liabilities equal what measure?
• Which structure do clams use to burrow into the substrate?
• What Fahrenheit temperature is used for incubating alligator eggs by producers?
• Which statement correctly describes the typical time to reach harvest size?
• Which of the following is NOT a component of the nitrogen cycle described in the material?
• A white band forms around alligator eggs several days after hatching.
• What sign of stress occurs when an alligator looks toward the sky?
• Dissolved oxygen is lowest in the afternoon. True or False?
• An aquatic plant used as food and mulch is which plant?
• Which statement correctly describes carbon dioxide toxicity thresholds?
• Low dissolved oxygen in outdoor systems is caused by which condition?
• What is considered the most effective diet for alligators?
• GAqPs are commonly interpreted as what?
• Which option lists the two main products produced by alligator culture?
• Having sufficient means to pay all debts or a firm's ability to pay all obligations if assets were liquidated is called
• The average clutch size for alligators is approximately which range?
• Stress and poor water management may lead to brown spot disease in which animals?
• A normal space for a 2-4 ft alligator is
• What type of climate is necessary for a successful shrimp or prawn culture?
• The process mainly due to the metabolism of a gas from anaerobic bacteria producing nitrogen gas that is released into the atmosphere is called?
• What is not a benefit of aquaponics system?
• In shrimp, this infection causes a condition known as 'milk' or 'cotton' shrimp.
• Which term involves selecting the market that provides the greatest return on investment to the producer?
• Gas bubble disease results from exposure to which gas?
• ______ aerators use low-pressure air blowers that force air through stones to release air bubbles at the ponds bottom or several feet below the water surface.
• With two submerged land leases for shellfish culture, do you need a cert for each lease or a single cert listing both?
• In a recirculating aquaculture system, what TAN level is acceptable?
• What are the basic units of inheritance?
• Which of the following is not a standard stage in clam production?
• When starting a business, items such as the fry or fingerling (Seed), processing and storage, feed mixtures and electricity or fuel power are all examples of
• "Thermal stress" can occur when temp changes more than 2-3 F in 24 hours.
• Dissolved oxygen in outdoor systems is produced by which processes?
• Brown spot disease in the material is associated with which condition?
• Oysters are primarily what type of feeders?
• Point where income is equal to the total of the fixed costs and variable cost of doing business is known as
• In outdoor ponds, which condition is associated with higher dissolved oxygen in the afternoon?
• How is ammonia/ammonium introduced into an aquarium or aquaponics system?
• Which statement best describes dissolved oxygen in aquaculture systems?
• When does a chalky white dot appear on alligator eggs?
• The health and growth of alligators is independent of their environmental temperature.
• Crawfish have a few diseases.
• Which sequence correctly lists the chemical symbols for nitrite, nitrate, unionized ammonia, and ionized ammonia?
• Which group is best known for forming surface bubble nests used to protect eggs?
• Shrimp culture can occur in warm climates.
• _______ is a group of minute plants, and _____ is a group of minute animals important as food sources.
• When must a tag be put in an alligator?
• What does DO stand for in water quality terms?
• The difference between soft-shelled and hard-shelled crawfish is primarily due to management.
• At what age can baby alligators be introduced to water?
• In marketing, the term for a demand-driven approach where promotions entice consumers to ask retailers for products is called
• _______ aerators have been used on catfish farms for many years.
• Tetras, barbs, and danios are the most common fish in which group?
• The most effective alligator ration is
• Which term refers to funds used to start a business or to acquire assets?
• The easiest way to avoid ammonia toxicity is
• How do fish help plants in an aquaponics system?
• In distribution channels, which term describes the activity of moving goods from producers to retailers or customers?
• Which pigment is used to promote bright coloration in ornamental fish?
• The average clutch size for alligators is typically in which range?
• What is the best time to collect alligator eggs?
• Is a home aquaculture operation with 15 tanks and no sales required to hold an aquaculture certificate?
• Antibiotics like oxytetracycline in the diet are used to combat which?
• Alligator eggs orientation: which statement is correct?
• The eggs and fry for which group are usually very small, making it hard to feed the newly hatched fish?
• What document is required for anyone raising aquatic species for commercial sale?
• Which are the best types of plants to grow in an aquaponics system?
• This is estimated by subtracting all costs from the expected revenues.
• In an aquaponics system, what is the primary source of nutrients for the plants?
• What should the level of dissolved oxygen be in a pond?
• Nitrosomonas bacteria break down ____________ into _____________ in an aquarium or aquaponics system
• Hole in the head lesions between the eyes in fish are caused by which disease?
• Warm climate is necessary for a successful shrimp or prawn culture.
• The minimum level of dissolved oxygen in water to prevent stress or death is 4–5 mg/L.
• Which group is minute animals important as food sources?
• Alligator eggs must be laid with their long axis parallel to the ground.
• Which aeration method involves surface spray or vertical pumps?
• Which gas is required for most aquatic animal life?
• Which group scatters eggs in the environment?
• Which bacteria are primarily responsible for the first step of nitrification, converting ammonia to nitrite?
• Which method best removes fine and dissolved solids that are not easily removed by sedimentation or mechanical filtration?
• _____ equity provided by family members , reinvestment of retained earnings, lease agreements and loans
• On an alligator farm, space per a two-foot-long animal is typically about how many square feet?
• Chronic low-level ammonia exposure can inhibit growth and increase susceptibility to disease.
• What is the annual cost of the aquaculture cert of registration?
• What does TANF stand for in aquaculture water quality measurements?
• Acid and alkaline death points for fish are approximately pH?
• This disease is caused by a parasitic crustacean (copepod).
• In a Florida example, which agency renews the aquaculture certificate of registration?
• Tan is the byproduct of __ metabolism
• Which category do cichlids, including angelfish, primarily belong to?
• ______ means the number of fish in a pond or raceway.
• Which analysis determines the number of units that must be sold to cover total costs?
• This physiological system is helpful for obtaining food and oxygen.
• In aquatic systems, which gas is produced by respiration and used by photosynthesis?
• In saltwater systems, which value best represents the ideal salinity level?
• In recirculating systems, what is the acceptable TAN level?
• Gas bubble disease in fish is caused by too much which gas?
• What is the minimum harvest size for alligators?