Waec Model Questions Vol1 2020 Agricultural Science Question 31
Practice objective / multiple choice question 31 from the 2020 Waec Model Questions Vol1 Agricultural Science examination.
A lake has a fish carrying capacity of 5,000 tonnes and an intrinsic growth rate of 0.4 per year. The harvest follows the catch equation H = q E B where q = 0.02 (catchability coefficient), E is the fishing effort in boat‑days per year and B is the biomass at the start of the year. The manager wants the biomass after harvest to be at least 60 % of the carrying capacity each year. Assuming the fishery operates at a constant effort and the stock reaches a steady state, what is the greatest whole number of boat‑days (E) that can be allowed?
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About This Question
This is Waec Model Questions Vol1 2020 Agricultural Science Question 31. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Agricultural Science examination.
Difficulty level: Hard .
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