7.5 GL of Commonwealth environmental water was delivered in the Wakool River and Colligen Creek in the Edward-Wakool River System, New South Wales, during February and March 2012. The Commonwealth environmental water was delivered in conjunction with 6.8 GL of water provided by the New South Wales Government.
The objectives of this watering action were to provide opportunities for small-bodied fish, such as Murray-Darling rainbow fish and carp-gudgeons, to access important breeding and feeding habitat and improve the condition of the river and riparian ecosystems.
In the Wakool River the environmental water flows commenced on 14 February 2012 and continued until 6 March 2012 when they were suspended due to heavy rainfall in the region and further upstream in the Murray River catchment.
In Colligen Creek the environmental water flows began on 8 February 2012, and finished on 1 March 2012. This watering action built upon the benefits achieved in the November-December 2011 Colligen Creek environmental water flows.
The flow was monitored as part of the Edward-Wakool fish monitoring project.
This watering action was managed in cooperation with the New South Wales Office of Environment and Heritage, Murray Catchment Management Authority, State Water Corporation, and New South Wales Department of Primary Industries (Fisheries).
Carp gudgeon in breeding colours found in the Wakool River in January 2012
Rebecca Gee, 16 January 2012