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Water levels - the golden key


Hardie, S, Water levels - the golden key, RipRap, Australian River Restoration Centre, Australia, 34, pp. 56-57 ISSN 1324-6491. (2012) [Magazine Article]

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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 Details

Item Type:Magazine Article
Keywords:Tasmania, freshwater fish, threatened species, lake, water levels, water management. life cycle
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Freshwater ecology
Objective Division:Environmental Management
Objective Group:Fresh, ground and surface water systems and management
Objective Field:Fresh, ground and surface water biodiversity
UTAS Author:Hardie, S (Dr Scott Hardie)
ID Code:115493
Year Published:2012
Deposited By:Zoology
Deposited On:2017-03-28
Last Modified:2017-03-29

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