Sustainable Marine Food Production Systems - 6 MCQ

Test your knowledge with important Sustainable Marine Food Production Systems - 6 MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Sustainable Marine Food Production Systems - 6 MCQs on Bissoy. Bissoy App

• ______________ is not an effect of presence of humic substances in aquaculture.
  ক

  Fungistatic

  খ

  Brown coloration of soil

  গ

  Increased fish infection

  ঘ

  Protection against toxic metals
• Humic substances are _________________
  ক

  organic compounds

  খ

  chemical substances

  গ

  bacterial communities

  ঘ

  pathogenic flocculation
• _________________ is used as carbon source by denitrifying bacteria in zero-water exchange systems.
  ক

  Volatile fatty acids

  খ

  Molasses

  গ

  Ethanol

  ঘ

  Methanol
• Nitrate removal is conventionally done by __________________
  ক

  filter sterilization

  খ

  dilution

  গ

  autoclaving

  ঘ

  chemical oxidation
• In aquaculture ozonation cannot cause ___________________
  ক

  autotrophic growth

  খ

  oxidative stress

  গ

  histopathological damage

  ঘ

  bromate production
• _______________ can be used to improve performance of micro-screen filters.
  ক

  Ozonation

  খ

  Foam fractionation

  গ

  Floatation

  ঘ

  Biofilter
• Cartridge filtration is used for ___________________
  ক

  nitrification

  খ

  suspended solid removal

  গ

  fine solids removal

  ঘ

  sulfide bioremediation
• Which is not a sign of fine solids accumulation in RAS?
  ক

  Decrease in pH

  খ

  Increase in turbidity

  গ

  Hampered visual inspection

  ঘ

  Imbalance in photoperiod control
• For anammox reaction to take place addition of organic carbon is required.
  ক

  True

  খ

  False
• Anammox is _____________________
  ক

  ammonia removal pathway

  খ

  oxygenation device

  গ

  bacterial consortium

  ঘ

  dropping of pH
• Low dissolved oxygen concentration can be achieved using low-head oxygenators.
  ক

  True

  খ

  False