With cyclone Megan dumping more rain in the Territory I thought I'd do a search on their prawning industry. The tiger and banana prawns get washed out to sea in the floods. Found this:
Gulf of Carpentaria sees 'best fishing in years' as cherabin, barramundi take over rivers after record floodsHe couldn't keep this one in Qld. All the bug 'uns are female and lay millions of eggs.
