7. Why is mud crab fattening the most suitable method for small scale
aquaculture?
a. Cannibalism is dramatically increased.
b. Lower survival rate for fattening.
c. Fattened crabs can be stocked at lower densities.
d. The period between investment and returns is short.
8. Although fish culture provides many benefits to people, it also poses adverse
impacts on environment, people and the community. Which of these impacte
a. decline in local food crops
b. displacement of native species
c. loss of mangrove ecosystem
d. water and soil salinization
9. Population numbers of some wild stocks of some species are in danger of being
depleted due to overfishing. How does fish farming help in the preventing the
depletion of wild stocks from the sea?
a. Fish farming provides more hiring possibilities and more jobs,
b. Fish farming provides extra income to supplement the earnings of
the family
c. Fish farming provides alternative sources instead of fishing the same
species from the sea.
d. Fish farming buffer zones that protects the rest of the sea from
pollution from the land.
10. The culture of this fish in brackish water ponds and penis is an age-old and
traditional practice in many tropical countries. Due to its non - cannibalistic
nature, stocking density can be high in culture conditions compared to other
finfishes,
ACadish
b. Grouper
CMilkfish
d. Tilapia