Environmental watering in Colligen Creek Spring 2011
5.5 GL of Commonwealth environmental water was delivered in Colligen Creek in the Edward-Wakool River System, New South Wales, during November and December 2011. Commonwealth environmental water was delivered in conjunction with 1.7 GL of water supplied by the New South Wales Government.
The environmental water was used to provide a pulse in river flows over a period of 20 days. The primary objective for this pulse flow was to encourage movement of large bodied native fish such as Murray cod, silver perch and golden perch, and to initiate spawning and recruitment of these species. Monitoring undertaken by Charles Sturt University has subsequently shown that there were also significant benefits to native small bodied fish, such as carp gudgeons.
Charles Sturt University lead a collaborative team of scientists to monitor the outcomes of this environmental flow. For a summary of the preliminary results refer to the factsheet: Early results from environmental watering in Colligen Creek.
The 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 (Fishing and aquaculture).