Gce Model Questions Vol1 2021 Agricultural Science Question 38
Practice objective / multiple choice question 38 from the 2021 Gce Model Questions Vol1 Agricultural Science examination.
A lake fish population follows the logistic model \(\frac{dN}{dt}=rN\left(1-\frac{N}{K}\right)\) with intrinsic growth rate \(r=0.4\ \text{yr}^{-1}\) and carrying capacity \(K=80{,}000\) fish. A constant annual harvest \(H\) is applied. Determine the maximum constant harvest \(H_{\text{max}}\) that will allow the population to settle at a non‑zero equilibrium, and give the equilibrium population size at this harvest level.
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This is Gce Model Questions Vol1 2021 Agricultural Science Question 38. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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