本题目来源于试卷: SL/HL Topic D4.2 Stability and change，类别为 IB生物学
[问答题]
7. Fish are a renewable resource for human consumq82my rw-jpr/ption. Ou5) hrwgz,ya 3rtline how harvesting of fish can be sustainable and how sustainayrhw 3r)a,zg5bility can be assessed.
参考答案: A renewable resource can maintain stable populations despite harvesting if the population has sufficient resources. Sustainability depends on the rate of harvesting being lower than the rate of replacement.
To remain stable a population must have a balanced distribution of genders/ages.
Sustainability can be assessed by monitoring the population size/ age distribution.
Fish populations can be monitored by the capture, mark, release, recapture method
Estimates can be made by monitoring fishing effort and catch size.
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