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Summary 2017–18

2.0 GL

water for the environment delivered at this site

2.0 GL

water used at this site

0 GL tooltip

flowing back to the river system

clipart representing water use


Water for the environment delivered
a tick mark

Climate conditions

Dry - above average temperatures with river flows half the long term average. tooltip
icon dry

Works tooltip

Are there works at this site?
a tick mark
Works in use this year?
a cross mark



With no delivery of water for the environment into Koondrook Perricoota Forest in 2018-19, all the wetlands, creeks and waterholes are dry. Only a handful of lagoons near the river still hold a small amount of water. Red gums are stressed and there is little groundcover and very few wetland plants.


Turtles are of cultural significance to the Yorta Yorta and Barapa Barapa local First Nations. Now in its third year, Traditional Owners working on Country have undertaken a pest management program that has successfully protected turtle nests from foxes in the forest.


Water plants thrived in the Pollack wetland, in response to the delivery of small amounts of water for the environment over the last three years. Duck weed, water ribbons, reeds and rushes responded well, providing important habitat for native fish and waterbirds. This is in stark constrast to the rest of Koondrook Perricoota Forest floodplain with many dry wetlands with no aquatic plant life, limited understorey plants and stressed river red gums.


In a dry landscape, the delivery of a small amount of water for the environment to the Pollack wetland is providing an important refuge for waterbirds. The 2018 survey recorded 14 waterbird species at the Pollack. The Australasian darter and the little pied cormorant successfully bred for the second consecutive year.

Past reports for Koondrook–Perricoota Forest

  Overall   Vegetation Waterbirds Fish
flood icon2017-18 D   C D D
flood icon2016-17 C   B B D
flood icon2015-16 D   D D C
flood icon2014-15 D   D D -
flood icon2013-14 D   D D D
flood icon2012-13 D   D D D
flood icon2011-12 D   C D D
flood icon2010-11 D   D D D
flood icon2009-10 D   D D -
flood icon2008-09 D   D D -
flood icon2007-08 D   D D -
flood icon2006-07 -   - - -
dry icon Dry flood icon Very Wet
wet icon Wet moderate icon Moderate

Each year, water is released into the environment depending on the climatic conditions. See the outcomes of water over time for a long-term view of how natural and released water affects the health of rivers.


Stories from the River Murray – Koondrook-Perricoota Forest
Barber Creek after natural flooding (2016)
Barber Creek after natural flooding (2016)
Pink eared duck
Pink eared duck
River Red gums in dry floodplain
River Red gums in dry floodplain
Wetland vegetation after natural flooding
Wetland vegetation after natural flooding
Dragonfly emerging nymph. Photo: Jean Dind
Dragonfly emerging nymph. Photo: Jean Dind
A map of the Murray-Darling Basin see-our-progress MURRAY RIVER ADELAIDE Koondrook-Perricoota Forest Deniliquin Goolwa SOUTHAUSTRALIA VICTORIA NEW SOUTH WALES Barmah-Millewa Forest Hattah Lakes Lower Lakes, Coorong &Murray Mouth GunbowerForest Lindsay, Mulcra & Wallpolla Islands Blanchetown Mildura Swan Hill Albury-Wodonga Echuca ChowillaFloodplain