Adelaide’s very own

River Torrens:

managing a natural river, an

artificial lake, and

community expectations

Dr Nadine Kilsby

How do we manage?What do we value?

Karrawirraparri-Tarndaparri

River Murray40-90% Adelaide’s water

117 ML

641 ML2,400 ML

Do we have

too much or

too little

water in the Torrens?

500 ML

30 ML

2,400 ML

100 ML

117 ML

641 ML

800 ML

What do we/ the community

value?

cultural heritage

river environment

picnic/BBQ facilities

bicycle path

open space

wildlife

1

2

3

4

5

6

water quality

weeds

erosion

river flows

vandalism

algal blooms

1

2

3

4

5

6

7

8

9

Urban encroachmentother

flooding

1. Add lots of nutrients to a simple (low biodiversity) still body of water (stormwater is great for this)

2. Warm the water up (thermocline can improve this)3. Make sure it is not mixed (or shaken or stirred)4. Do not add freshwater.

Nadine’s recipe for growing Blue Green Algae