The Adelaide and Mount Lofty Ranges NRM Board undertakes and facilitates a diverse range of projects which are aimed at protecting and preserving our natural resources.
Download the new projects brochure here (2 mg)
See also on this site:
Review of climate change impacts in the Adelaide and Mt Lofty Ranges
Trash Racks
Wetlands and ASR Schemes
Ladder helps fish return to the Torrens
 |
|
Fish ladder located near the mouth of the Torrens
|
Native fish, including native trout, bream, lampreys and congolli, will soon be able to return to the River Torrens ending their 70 year exile thanks to the installation of a fish ladder.
The ladder, funded by the Adelaide and Mount Lofty Ranges Natural Resources Management Board, has been constructed at the Breakout Creek Weir of the Torrens Outlet at Henley Beach South.
Many species of native fish have not been seen in the Torrens since weirs and other barriers were built early last century.
Peter Schultz, Scientific Officer with the Board, said bringing back native fish helps restore natural balance in the Torrens.
“Fish such as native trout once spawned in the estuaries of the Torrens and their eggs floated out to sea to hatch,” said Peter. “This fish ladder provides the necessary link between salt and fresh water to enable migratory fish to hurdle the barrier and make it upstream to their true home.”
The Board will monitor the ladder and if it proves successful, similar devices will be considered between the sea and the Torrens Lake weir in the City.
The fish ladder is a chute containing internal baffles that slow the flow of the water and provide 'quiet areas' where small and juvenile fish can rest during their passage over the weir. It has been designed specifically to suit the swimming ability of the native fish species most likely to use it.
Top