Advanced Aquaculture Science

Aquaculture

A comprehensive examination of high-school level aquaculture principles, covering biological, chemical, and industrial aspects.

Biology Environmental Science Agriculture

15 Questions Hard Ages 15+ Sep 17, 2026

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About this Study Set

This study set covers Aquaculture through 15 practice questions. A comprehensive examination of high-school level aquaculture principles, covering biological, chemical, and industrial aspects. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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Browse all 15 questions from the Advanced Aquaculture Science study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 In Recirculating Aquaculture Systems (RAS), which process is primarily responsible for the conversion of toxic ammonia into less harmful nitrate?

A Denitrification
B Nitrification
C Photo-oxidation
D Chemosynthesis

2 What is the primary function of a 'protein skimmer' or foam fractionator in a saltwater aquaculture system?

A Removal of dissolved organic compounds
B Oxygenation of the water column
C Reduction of water temperature
D Sterilization of pathogenic bacteria

3 Which term describes the phenomenon where nitrogen gas concentrations in water exceed atmospheric pressure, potentially causing gas bubble disease in fish?

A Hypoxia
B Hypercapnia
C Supersaturation
D Eutrophication

4 In salmonid aquaculture, what is the specific term for the physiological transition where a parr undergoes hormonal and morphological changes to survive in seawater?

A Metamorphosis
B Smoltification
C Estivation
D Gametogenesis

5 Which of the following describes the 'Feed Conversion Ratio' (FCR) calculation in aquaculture?

A Total weight gained divided by total feed fed
B Total feed fed divided by total weight gained
C Total fish harvested minus mortality rate
D Total protein intake divided by total water volume

6 What is the limiting factor in most intensive pond aquaculture systems that necessitates mechanical aeration?

A Dissolved oxygen levels
B Carbon dioxide concentration
C Total suspended solids
D Nitrogen gas pressure

7 In molluscan aquaculture, what is the primary cause of 'spat' mortality during the nursery phase?

A Viral hemorrhagic septicemia
B Vibrio bacteria infections
C Thermal shock from solar radiation
D Excessive silicate concentration

8 What is the purpose of 'triploidy' induction in commercial oyster farming?

A To increase the growth rate by inhibiting sexual maturation
B To change the shell color for market appeal
C To increase resistance to ocean acidification
D To improve the nutritional content of the mantle

9 Which chemical parameter must be monitored to ensure the efficacy of biological filters in a RAS environment?

A Alkalinity
B Salinity
C Turbidity
D Conductivity

10 In aquatic pathology, what does the term 'ELISA' refer to as a diagnostic tool?

A Enzyme-Linked Immunosorbent Assay
B Electrolytic Liquid Ion Sampling Apparatus
C Endogenous Larval Infectious Symptom Analysis
D External Lesion Identification Scanning Array

11 Which type of aquaculture system utilizes integrated nutrient recycling where fish waste provides fertilizer for hydroponic crops?

A Pond monoculture
B Aquaponics
C Cage culture
D Raceway system

12 Which gas, if present in high concentrations in recirculating water, acts as a potent anesthetic and can suppress fish growth?

A Carbon dioxide
B Argon
C Neon
D Helium

13 What is the role of 'zooplankton' in the larval rearing of marine fish species?

A They act as a primary source of essential fatty acids for larvae
B They are used to filter bacteria from the water column
C They provide structural support for the larval development
D They act as a biological control for fungal infections

14 Which of the following is considered an 'allochthonous' input in an intensive aquaculture pond ecosystem?

A Phytoplankton growth
B External commercial pelleted feed
C Decomposition of benthic algae
D Photosynthetic oxygen production

15 In the context of aquaculture sustainability, what does the 'Fish In-Fish Out' (FIFO) ratio measure?

A The mass of wild-caught fish used in feed vs the mass of farmed fish produced
B The number of fish eggs placed in a hatchery vs the number of fingerlings
C The total number of fish in a cage vs the water volume
D The ratio of male to female fish in a breeding program

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