Consider the following relationship between the growth and stock of a Largemouth Bass population on a local lake. Answer the questions below. Annual Growth 10% 6% B 80 125 D E 200 Stock

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Chapter1: Making Economics Decisions
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2. Consider the following relationship between the growth and stock of a Largemouth Bass
population on a local lake. Answer the questions below.
Annual
Growth
10%
6%
A
B
80
C
D
E
125 200 Stock
a) Fully label the graph, identifying (i) the maximum sustainable yield, (ii) the natural equilibrium
associated with the environment's carrying capacity, and (iii) the critical threshold below which
the population collapses to extinction.
b) Interpret what the maximum sustainable yield means in this example.
c) Assume a harvest rate of 9% when the population size (stock) is 200. Based upon the graph
above, what would the impact on the fishery be? Would the population grow or shrink? Use the
above graph to illustrate the resulting equilibrium for this population. Explain.
d) Assume a harvest rate of 11% when the population is size 200. Based upon the graph above,
what would the impact on the fishery be? Explain.
e) Suppose a policy-maker proposes that the local governing authority implement a study to
identify the maximum sustainable yield and to limit harvest rates to that level. What are some
problems with this policy goal? Explain why this may be problematic.
Transcribed Image Text:2. Consider the following relationship between the growth and stock of a Largemouth Bass population on a local lake. Answer the questions below. Annual Growth 10% 6% A B 80 C D E 125 200 Stock a) Fully label the graph, identifying (i) the maximum sustainable yield, (ii) the natural equilibrium associated with the environment's carrying capacity, and (iii) the critical threshold below which the population collapses to extinction. b) Interpret what the maximum sustainable yield means in this example. c) Assume a harvest rate of 9% when the population size (stock) is 200. Based upon the graph above, what would the impact on the fishery be? Would the population grow or shrink? Use the above graph to illustrate the resulting equilibrium for this population. Explain. d) Assume a harvest rate of 11% when the population is size 200. Based upon the graph above, what would the impact on the fishery be? Explain. e) Suppose a policy-maker proposes that the local governing authority implement a study to identify the maximum sustainable yield and to limit harvest rates to that level. What are some problems with this policy goal? Explain why this may be problematic.
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