Imagine there is a species-specific fishing regulation that mandates only adult fish of this species that are 75 cm or longer may be kept and shorter fish must be released. Based on your knowledge of natural selection, you would predict that the average length of the adult fish population will
A) remain unchanged.
B) gradually decline.
C) rapidly decline.
D) gradually increase.
E) rapidly increase.

Question

Quizplus · Accepted Answer

The regulation creates a selective pressure favoring shorter fish, as they are more likely to survive and reproduce. Over time, this can lead to a gradual decline in the average length of the adult fish population.

Imagine There Is a Species-Specific Fishing Regulation That Mandates Only