Looks like somebody photoshoped pics of crappie and stretched them out digitally. I am also pretty sure that crappie and pickerel are a completely different species of fish and cannot be crossbred. Heres your sign.
Homer: Are you saying you're never going to eat any animal again? What about bacon?
Homer: Pork chops?
Lisa: Dad, those all come from the same animal.
Homer: Heh heh heh. Ooh, yeah, right, Lisa. A wonderful, magical animal.