and estuary has improved enough for the fish to make a comeback. Australian grayling are listed as a vulnerable species under Australia's Environment Protection and Biodiversity Conservation Act 1999 and under the IUCN Red List. There are now a number of conservation measures focused on conserving the fish. References Further reading Ault, T.R. and White, R.W.G. (1994) Effects of habitat structure and the presence of brown trout on the population density of Galaxias truttaceus in Tasmania, Australia. Transactions of the American Fisheries Society 123: 939–949. Cadwallader, P.L. (1996) Overview of the Impacts of Introduced Salmonids on Australian Native Fauna. Australia Nature Conservation Agency, Canberra. McDowall, R.M. (1976) Fishes of the Family Protroctidae (Salmoniformes). Australian Journal of Freshwater and Marine Research 27: 641–659. McDowall, R.M. (ed.) (1996) Freshwater Fishes of South-Eastern Australia. Reed Books, Sydney. McDowall, R.M. (2006) Crying wolf, crying foul, or crying shame: alien salmonids and a biodiversity crisis in the southern cool-temperate galaxioid fishes? Rev Fish Biol Fisheries 16: 233–422. Saville-Kent, W, 1888. On the acclimatisation of the salmon (Salmo salar) [and exotic trout species] in Tasmanian waters, and upon the reported disease at the breeding establishment on the River Plenty. Papers and Proceedings of the Royal Society of Tasmania 1887: 54–66. Fact sheet (Australian Inland Fisheries Service, 2005) Prototroctes Freshwater fish of Australia Vulnerable fauna of Australia Fish described in 1864 Taxa named by Albert Günther