As the human population grows and countries continue to develop, the demand for large fish has been steadily increasing. unfortunately, the average size of the cod has decreased because the fishing nets were designed to catch the large fish and the smaller individuals could escape more easily. what is most likely happening to the genetic variation of the population of north east arctic cod? a. the genetic variation in the population is increasing due to selective pressure. b. the genetic variation in the population is decreasing due to selective pressure. c. the genetic variation in the population is increasing due to gene flow. d. the genetic variation in the population is decreasing due to gene flow.