Western Hardyhead
Leptatherina wallacei (Moore River to Thomas River) 
Swan River Blue Spot Goby
Pseudogobius olorum (Murchison River to Poison Creek) | | Often found well inland The Swan River goby and the western hardyhead are the most commonly encountered estuarine species in the rivers and lakes of south-western Australia. Their range has increased substantially due to the unnaturally elevated salinities (through large-scale land clearing) now encountered in many of the regions rivers, e.g. Moore, Swan, Blackwood, Frankland and Phillips Rivers. Other estuarine/marine species, including the big-headed goby, black bream and mullet, are also occasionally found long distances inland in the south-west. Further Reading Allen, G.R., Midgley, S.H. & Allen, M. (2002). Field guide to the freshwater fishes of Australia. Western Australian Museum, Perth. Anon (2000). Introduced freshwater species in Western Australia . Be on the lookout for: yabbies, red-fin, carp, mosquito fish, tilapia, guppies and swordtails. Fish and Fish Habitat Protection Program, Fisheries Western Australia, Perth. Morgan, D.L., Gill, H.S. & Potter, I.C. (1998). Distribution, identification and biology of freshwater fishes in south-western Australia. Records of the Western Australian Museum Supplement No. 56: 97 pp. | |