>>Recently a number of crocodiles have been trapped in the Mary River, just 105 kilometres north of Noosa and 250km south of their usual range.
Irukandji jellyfish too, appear to be expanding south, with 10 suspected stings near Fraser Island and a child stung at Mooloolaba last year.
Numerous tropical fish have been recorded up to 1,000 kilometres south of their traditional range, such as the Great Barrier Reef’s lemon-peel angelfish which turned up on Lord Howe Island in 2009, and habitat-modifying sea urchins have landed in Tasmania.<<
http://www.abc.net.au/news/science/2018-06-23/crocodiles-in-noosa-climate-change/9634422