One Way to Determine Whether a Population Is Being Overharvested

One way to determine whether a population is being overharvested is to determine when it is no longer sustainable-that is, when the population is being harvested faster than it can be replaced by its natural rate of reproduction.In the case of an exploited ocean fishery, an observer would first become aware that the fishery is being overharvested when fish biomass

A) increases but the fish caught are smaller.
B) drops to near zero and the fishery collapses.
C) remains the same every year, even though fish are being harvested.
D) declines every year, even though the harvest rate remains the same.
E) declines every year, but only if the harvest rate increases.

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