Answer:
Overfishing can affect the natural variation of a population by:
Removing individuals with favorable traits.
Step-by-step explanation:
When a population is overfished, it often results in the removal of a large number of individuals from the population. If certain individuals within the population possess traits that make them better suited to survive and reproduce in the face of fishing pressure, their removal can lead to a shift in the population's genetic composition. This can result in the loss of genetic diversity and may decrease the frequency of favorable traits within the population, making it less adapted to its environment. This process is contrary to adaptive evolution and can lead to negative consequences for the population.