Long-term intervention monitoring in

the Gwydir River

Dr Paul Frazier, Dr Mark Southwell,

Assoc. Prof. Darren Ryder

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LTIM Selected Areas

1 – Warrego-Darling Junction

2 – Gwydir R

3 – Lachlan R

4 – Murrumbidgee R

5 – Edward Wakool R

6 – Goulburn R

7 – Lower Murray R

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Dec 201460% Lippia10% Couch

March 20153% Lippia81% Couch

October 201610% Lippia50% Couch

March 201715% Lippia40% Couch

Zooplankton (micro-invertebrates)

• 75 000 000 000 individuals

• 1 000 000 kg biomass

• Succession of different species over time

• Gwydir communities different to the Gingham

Seed Shrimp

E-Water is having a positive impact

• Water hitting the spot - delivery

• Veg resilient, out competing weeds

• Wetland veg increasing

• Bugs diverse, different systems, inund. patterns

• Native fish recruiting in small numbers

• Native fish moving in response to flows

• Birds, diverse, some breeding

Collaborators