This quiz works best with JavaScript enabled. Home > Agriculture > Aquaculture > Principles > Principles Of Aquaculture – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Principles Of Aquaculture Quiz 2 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Aquatic arthropods with modified appendages Ex:Lobster A) Shellfish. B) Crustacean. C) Fish. D) Aquatic plants. Show Answer Correct Answer: B) Crustacean. 2. Sexes of mud crabs are separate and it can be distinguished based on the shape of abdominal flap, A) Adductor muscle. B) Abdominal flap. C) Thelycum. D) Eye stalk. Show Answer Correct Answer: B) Abdominal flap. 3. What activities are restricted in marine reserves? A) Swimming. B) Diving. C) Commercial Fishing. D) Filming and Taking pictures. Show Answer Correct Answer: C) Commercial Fishing. 4. Used to form a shallow, segregated area of water. A) Reef. B) Everglades. C) Nets. D) Marsh. Show Answer Correct Answer: C) Nets. 5. Scientific name of spiny lobster A) Panulirus polyphagus. B) Thenus orientalis. C) Panulirus homarus. D) Panulirus ornatus. Show Answer Correct Answer: C) Panulirus homarus. 6. Which of the following are harmful effects of agriculture? A) Algal blooms due to fertilizer runoff. B) Climate change associated with methane emissions from livestock and rice paddies. C) Pesticide residue in food, water, and air. D) All of the above. Show Answer Correct Answer: D) All of the above. 7. First larval stage of penaeus monodon A) Mysis. B) Metazoea. C) Zoea. D) Nauplius. Show Answer Correct Answer: D) Nauplius. 8. This pump is the second-most efficient emergency aeration device. A) Paddlewheel. B) Relift. C) Diffused air systems. D) Re-oxygenator. Show Answer Correct Answer: B) Relift. 9. Which of the following colors on a safety label indicates a health hazard? A) White. B) Blue. C) Red. D) Yellow. Show Answer Correct Answer: B) Blue. 10. ..... aerators use low-pressure air blowers that force air through stones to release air bubbles at the pond bottom or several feet below the water surface. A) Paddlewheel. B) Bubble. C) Relift. D) Diffused air systems. Show Answer Correct Answer: D) Diffused air systems. 11. Growing of two items at one time. A) Polyculture. B) Aquaculture. C) Monoculture. D) Agriculture. Show Answer Correct Answer: A) Polyculture. 12. Excess food or faeces in an aquaculture system can lead localised what? A) Resistance. B) Bioaccumulation. C) Biomagnification. D) Eutrophication. Show Answer Correct Answer: D) Eutrophication. 13. For crustaceans to grow, they must shed their hard outer shell ..... the exoskeleton. This process is known as? A) Exo-shedding. B) Molting. C) Shedding. D) Dredging. Show Answer Correct Answer: B) Molting. 14. This freshwater culture requires warm temperatures of about 82 Fahrenheit, saline waters for larval stages, and fresh or slightly saline waters for grow out. A) Shrimp. B) Prawns. C) Crwafish. D) Lobsters. Show Answer Correct Answer: B) Prawns. 15. Ponds are typically how deep? A) 2-4 feet. B) 3-5 feet. C) 4-6 feet. D) 12 inches. Show Answer Correct Answer: B) 3-5 feet. 16. Which of the following are environmental impacts of extensive aquaculture? A) Spread of disease. B) Pollution. C) Introduced species. D) All of the above. Show Answer Correct Answer: D) All of the above. 17. Which type of fish have long barbels on their upper lip? A) Tilapia. B) Carp. C) Trout. D) Catfish. Show Answer Correct Answer: D) Catfish. 18. The largest and most commercially important species of abalone, ..... abalone occurs mostly in California waters. A) Green. B) Red. C) Nothern hard. D) Blue. Show Answer Correct Answer: B) Red. 19. Agriculture can be harmful to the lithosphere because fertilizers and ..... can pollute the water. A) Hydrofracking. B) Pesticides. C) Monoculture. D) Uranium. Show Answer Correct Answer: B) Pesticides. 20. Organs of interdependent organism and the environment they inhabit. A) Bacteria. B) Adaptation. C) Photophores. D) Protozoa. Show Answer Correct Answer: C) Photophores. 21. The biggest aquaculture earner in WA is A) Barramundi. B) Pearls. C) Mussels. D) Oysters. Show Answer Correct Answer: B) Pearls. 22. Snails are fed a finely ground dry meal with a high concentration of A) Protein. B) Saturated fatty acids. C) Unsaturated fatty acids. D) Calcium carbonate. Show Answer Correct Answer: D) Calcium carbonate. 23. A bunch of silky threads secreted by certain mollusks and serving as a mean of attachment to an object. A) Mussel. B) Mucus. C) Byssus. D) Foot. Show Answer Correct Answer: C) Byssus. 24. Scientific name of rainbow trout A) Onchorhynchus clarki. B) Salmo trutta. C) Onchorhynchus mykiss. D) Salmo platycephalus. Show Answer Correct Answer: C) Onchorhynchus mykiss. 25. The photic layer of the open ocean is the area with the greatest amount of? A) Oxygen. B) Light. C) Nutrients. D) Carbon dioxide. Show Answer Correct Answer: B) Light. 26. A place where fish eggs are incubated and hatched by artificial means is known as what? A) Hatchet. B) Aquacrop. C) Hatchery. D) Fry. Show Answer Correct Answer: C) Hatchery. 27. Benefits of intensive systems are A) Having a high level of control over the system. B) Excess food decomposing in the water. C) High costs of running. D) None of above. Show Answer Correct Answer: A) Having a high level of control over the system. 28. When one is establishing an aquaculture operation, the need for more time to develop markets for the aquaculture products is the main reason to: A) Begin with multiple production facilities. B) Develop long-range expansion goals. C) Invest heavily in the operation. D) Start with a small operation. Show Answer Correct Answer: D) Start with a small operation. 29. Which type of fishing has the greatest level of bycatch? A) Demersal long-line. B) Purse seine. C) Pelagic long-line. D) Shrimp trawl. Show Answer Correct Answer: D) Shrimp trawl. 30. A significant reduction in temperature in an aquarium that holds warmwater fish will cause the fish to: A) Automatically die. B) Get sick. C) Grow faster. D) Stop eating. Show Answer Correct Answer: D) Stop eating. ← PreviousNext →Related QuizzesAquaculture QuizzesAgriculture QuizzesPrinciples Of Aquaculture Quiz 1Principles Of Aquaculture Quiz 3Principles Of Aquaculture Quiz 4Principles Of Aquaculture Quiz 5 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books