Page 247 - NS-2 Textbook

242 NAUTICAL SCIENCES

C. How can this phenomenon affect naval opera- Vocabulary
tions?
marine biology aquaculture
22. What is the most serious effect of marine fouling and
zooplankton oyster bed clutch
deterioration for the Navy?
lanra, larvae habitat
23. What are the two categories of marine species that
nutrients deep scattering layer
can be dangerous to people?
decompose upwelling
24. What are the four groups of stinging marine animals
protein marine fouling
that can injure humans?
guano teredo worm
25. What are the four species of poisonous fish that are
hydrogen sulfide gribbles
particularly dangerous to people?
Callao Painter mollusks
26. A. What does SCUBA mean? EI Nino sea anemone
B. Before divers use scuba geaI~ what qualifications Red Tide hydroid
should they have? food cycle jellyfish
27. What is the purpose of a bathyscaphe? chlorophyll sea urchin
28. What are the seven main groups of sea pollutants? carnivore vertebrate
29. A. What are the main causes of petroleum pollution predator dorsal
in the sea? kelp scorpionfish
B. Where is the most danlage caused by an oil spill? algae SCUBA
30. What is the particular danger of heavy metal pollu- diatoms bathyscaphe
tion? protozoan aquanaut
31. How does pollution by synthetic compounds affect lamprey pollution
natural reproduction of seabirds and aninlals? brackish water pesticide
32. How do radioactive pollutants affect marine life and flukes radioactive
humans? baleen whale biphenols
33. How does domestic sewage upset the natural eco- endangered species biodegradable
system in enclosed ·water areas? purse seiner ecosystem
34. What are two forms of biological pollution that have stingray litter
found their way into u.s. waters in recent years? ballast water bioluminescence