Fisheries management is still an infant discipline fighting to gain status and recognition among fishery scientists. For some, fisheries management is the "art" of inducing fishermen to fish as much as possible with the best available technology. For others it is determining optimum sustainable yield levels of fish populations and of identifying measures to restrict effort or access so that conservation principles are not violated. For others, it is the way fishing activity should be conducted in order to obtain the highest possible catch and net benefits to society over time.