For Exercises 42–52, refer to the following. We suppose that the population has the reproduction curve shown in the following figure, with units of thousands of tons of biomass, whose mathematical description is
Question 23.77
47. What is the significance of the red dashed line in the preceding figures and its intersection with the blue curve?
47.
The red dashed line indicates the same size population next year as this year; where it intersects the blue curve is the equilibrium population size.