I don't understand how you culd be thinking of harvesting the link in the foodchain that is the reason Southern Bluefin Tuna numbers are incresing in Bass Strait. Is it just greed or is it irresponsible thinking that doesn't look back at devestated tuna fisheries or forward to a food source raped by commercial fishing in a huge scale that would deplete thier food source. Also snapper numbers are incresing in Bass Strait and down the East Coast and i'm sure plentiful sardines would be alarge food source for this species also. Please rethink and study what you are proposing our fisheries depend on sensable managemeny not greed on a link in the foodchain.