I see your point. However the populations of a lot of these game animals have not always been in healthy numbers. Through conservation, controlled culling & sometimes taxes (special licenses to hunt these animals) the populations of these animals, after these measures are enforced, have come back into healthy population numbers. Where I live, in order to fish you must hold a fishing license. On top of that you must have a second license to catch trout. Can it not, perhaps be done with the sharks? In order to leagally hunt them you must hold a special (if not expensive license). Then put the $ earned from the licenese sales toward the conservation, breeding & protection of the animals. In this matter there would be much more control as to how many animals are taken yearly and by controlled taking would give the shark species a chance to recover, even though it may be years. Just a though.