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Aquaculture

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Questions 10

Answers

1
The greater the density of fish in a system, the
the more difficult the management
smaller the tank
the higher the temperature
larger the fish
2
Water quality is less affected by
fish density
weather
fish species
chemical run-off
3
The yearly catch of fish natural waters is
hard to determine
mostly catfish
holding constant or decreasing
increasing
4
How are fish farms regulated to minimise environmental impact?
highlynutritious, good value for money seafood,
all of the above
Fish and shellfish provide high quality
All forms of aquaculture are subject to stringent enviorment
5
The aquaculturist must understand how aquatic organisms
all of the above
live
reproduce
eat
6
The highest salinity is measured in
pond water
ocean water
creeks
irrigation water
7
The accumulation of salts in water occurs most often when
water settles in a pond
water collects in a drainage ditch
water runs across agricultural land
water is lost through evaporation
8
What is aquaculture?
all of the above
Warm water prawnsare farmed in large ponds .
The method depends on the species and location,
Aquaculture is the farming of fish, shellfish and plants.
9
A fish kill can occur when a pond "rolls over"
because of low levels of dissolved oxygen
because the fish turn upside down
because of the temperature shock
because the cage sink to the bottom
10
Brackish water is
collected from small creeks and branches
mostly high in salinity
colored black
located in tidal areas