4.3 - AQUATIC FOOD PRODUCTION SYSTEMS Flashcards
1
Q
Define “aquatic ecosystem”
A
A body of water which can be either marine or freshwater
2
Q
Define “MSY (Maximum Sustainable Yield)”
A
The optimum amount of harvest that can be obtained annually without affecting the stock or its ability to replenish itself. (half of its carrying capacity)
3
Q
Define “aquaculture”
A
The cultivation of aquatic plants and fish for food.
4
Q
How does energy get into aquatic food webs?
A
Phytoplankton - 99% of primary productivity in the oceans
5
Q
Why is demand for fish increasing?
A
Human population growth, diet changes
