snakeheads arnt in new jersey,(have been found in PA, MD, VA) but with all of the media atention about shs people think they are these horrrible fish that will attack you and everything and breed like rabbits and with in a year they will be the only fish that lives in the body of water and then they will crawl to the next body of water and keep going till there are no fish left in america. thats basicaly the impression you get when you read the articles but anyways people catch a bowfin which is a common fish across america and they look simular to shs and people kill the bowfins thinking they are sh hope this ansews your question.