Some will claim that trawling for prawns takes too big a haul and that prawn creels are the answer, but the trawlerman will complain that creel boats fish 24 hours a day and are allowed to fish far too many creels. Fishermen will always use the best method that is available—the best legal method, I should say.The best form of control is effort limitation that includes horsepower limits for vessels and takes the size of the vessel into the equation.