Mercury: CLIMATE change will challenge Tasmania’s thriving aquaculture industry as sea temperatures rise, experts say. The Tasmanian industry produces $318 million worth of seafood products a year and will need to plan carefully to avoid the worst consequences of a warming planet. More than 800 delegates from 40 nations are attending the Australasian Aquaculture conference in Hobart this week. CSIRO climate scientist Alistair Hobday said climate change was already a reality for …