Not sure who believes that they can manipulate the fish population becasue they have deemed that fish to be a pain. I personally love catching sheephead when I am out. You want to see a kid have a blast?, let him hook into one of these monsters jigging in the detroit river, you think that kid cares what kind of fish is on the end of his rod? Take a kid fishing off a pier, sunfish, 1/4lb perch, or a sheep head......what do you think he wants to catch?
The last 2 times out I have caught 7 and 8 different spieces of fish, keeps it fun.