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Principles Of Aquaculture Quiz 5 (27 MCQs)

Quiz Instructions

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1. ..... helps keep debris from adhering to eggs and larvae in the hatchery.
2. The ..... is the height of the levee above the normal water level, generally between 1 and 2 feet.
3. Which of the following chemical hazards occur when pH levels are less than 2.0 or above 12.5?
4. Having a market for fish that are produced is a prime consideration when:
5. What is the common name of Lates calcarifer
6. Rank the three primary forms of fishing we covered (Pole, trawling, and longline fishing) from highest to lowest rates of bycatch.
7. In shrimp, this infection causes a condition known as "milk" or "cotton" shrimp.
8. Which is NOT an artificial incubator?
9. Removing more organisms from a population than can be replaced
10. Removal of solid particles from the tank by using a sponge, net, gravel or screen.
11. In the Untied States, the blue ..... (mytilus edulis) is the only indigenous species cultured commercially.
12. Eyestalk ablation, removal of one of the female's eyes, is an effective method to induce spawners of ..... to early maturation.
13. Aquatic invertebrate with a shell Ex:oyster
14. A ..... is a prolonged period of below average precipitation in an area.
15. The ability to maintain an ecological balance in an ecosystem is
16. The proposed shoreline a pond should be excavated to provide a depth of at least 10ft around the edge of the pond.
17. What would you expect to find if the dissolved oxygen level in a recirculating tanks dropped below 3.0 ppm?
18. Most commercial levee-type fish ponds are
19. Amount of crops produced per unit area
20. The following are culture system that used in aquaculture industry EXCEPT
21. What is the primary method used to harvest catfish grown in a large pond?
22. Injection of 0.2 ml of N/10 ammonium hydroxide (NH4OH) solution into the ..... of the pearl oyster results in 48 % spawning.
23. The factor that will have the most impact on the successful operation of an aquaculture facility is:
24. The ..... is derived practically by the maximum weight of fish that can be raised in a raceway.
25. What would you expect to happen if you use tap water directly from the sink to do a water change in your aquarium, without letting the water sit for a few before adding it?
26. What type of aquaculture system was typically used in traditional Asia?
27. A ..... keeps the floating feed from washing through the cage sides.
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