mate i have deckied on trawlers for over thirty years and bluntly can say yes when the prawns are boiled you can get 95 % prawns in a hit but once flogged and the boils disperse you can even get hit s up to 100% fish all about 3 inches long and 90 % drowned. outside the burdekin i have and many people have seen fish kills along the beach over 14 klm long im not talking about a few fish washed up im talking about a 20 litre bucket per foot. get real mate it happens . as for your comment about by catch many trawlers to survive remember there not getting paid anymore in prices that were 20 years ago have started the practice of shoal skimming with the purpose of bring up quanties of small nanny as well as emperor and sell them under bycatch laws . mate im not for it at all im very much against it but my father was a pro so i do know what goes on . fish kills are a lot higher up here as much of the trawling is done after the end of the wet season which also encompasses most of the fish spawning &juveniles which feed off the jelly prawns . so a few dead maybe 30 or so is a uproar mate you will pull out upwards of 50 a night drowned when the barra season opens . look government are very much in push things in favor of pros at the moment eg re opening hinchbrook to netting which i hope doesn't happen so a few dead sharks is a whiff to what really goes on .but this brings me back to the question did you buy prawns for easter ( simple fact be it a burger or a prawn something has to die )