Hardie, S, Water levels - the golden key, RipRap, Australian River Restoration Centre, Australia, 34, pp. 56-57 ISSN 1324-6491. (2012) [Magazine Article]
The native fish fauna of Tasmania is dominated by small-sized fishes that belong to the family Galaxiidae, with 16 galaxiid fishes occurring in the state. The Tasmanian Central Plateau (TCP) is home to several thousand lakes and lagoons, and is also a hot-spot for freshwater fish biodiversity with seven endemic galaxiid species occurring in the area.
Most of these lake-dwelling galaxiids only occur in a few waterbodies where they are susceptible to habitat alterations from water resource use associated with hydro-electric power generation and agricultural water demands. Galaxiid populations in this area have also suffered decades of predation and competition from introduced trout.
Climate change models also predict reduced rainfall in central Tasmania during the next century, adding further constraints on water availability. For these reasons, all seven endemic species of the TCP are listed under state or Commonwealth threatened species legislation.
|Item Type:||Magazine Article|
|Keywords:||Tasmania, freshwater fish, threatened species, lake, water levels, water management. life cycle|
|Research Division:||Biological Sciences|
|Research Field:||Freshwater Ecology|
|Objective Group:||Flora, Fauna and Biodiversity|
|Objective Field:||Fresh, Ground and Surface Water Flora, Fauna and Biodiversity|
|Author:||Hardie, S (Dr Scott Hardie)|
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