A. J . KING*, K. A. WARD , P. O’CONNOR , D. GREEN , Z. TONKIN* AND J. MAHONEY* *Freshwater Ecology, Arthur Rylah Institute for Environmental Research, Department of Sustainability and Environment, Heidelberg, Vic., Australia Goulburn Broken Catchment Management Authority, Shepparton, Vic., Australia Forest Management, Department of Sustainability and Environment, Tatura, Vic., Australia Murray-...