1. Calculate and explain sustainable yield from given data.
ESS – TOPIC 3 – LESSON 9
Calculate and explain sustainable yield from given data.
Assessment Statement 3.2.7

2. Sustainable Yield Read through the handout I have given you.
Describe what we mean by Sustainable Yield.
Suggest why it is important to consider the following when calculating SY: carrying capacity, population size, total biomass or energy, rates of change in population / energy / biomass.
Write down the 2 accepted calculations for SY. Explain what these 2 mean in your own words.
Suggest what Maximum Sustainable Yield might mean. Why is this important?

3. In your own words, explain the sustainable yield of the following:
an aquifer
b) a commercial fishing lake
c) a field of GM corn

4. Read through the following link:
environment/fisheries/managing-the-fish-stock/overfishing/ hong-kong/ Explain why the idea of Sustainable Yield is particularly significant in these examples. How might people’s opinions on this differ if their views were as ECONOMISTS, TECHNOCENTRIC OR ENVIRONMENTALIST.