Fair enough. Well, here's to hoping you catch a yellowfin bream in West Lakes (it doesn't have to be a 60cm one), post its picture here and prove the doubters wrong. I can't say for sure that you've caught one or you haven't. Neither can anyone else without seeing the fish to assist you with the fish identification. Either way, you caught a decent sized fish and lost it just as you were about to land it which is unfortunate.
The references I ound for it show that it does occur in our watershttp://australianmuseum.net.au/Yellowfin-Bream-Acanthopagrus-australis-Owen-1853and map
