Logan River Catchment and Estuary
|  | | | Catchment Facts |
- Total area: 3,076km2
- Stream network length: 5,486km
- Local Councils: Scenic Rim Council, Logan City Council, Ipswich City Council, Brisbane City Council
- Dominant land uses: grazing, native bush, rural residential, intensive agriculture
- Headwaters rise in Mt Barney National Park and are in relatively pristine condition
- Upper catchment has been extensively cleared for agriculture, grazing and dairying
- Mid and lower reaches flow through rural residential and urban areas
- Several aquaculture facilities are located along the banks of the Logan River near its mouth
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| | | Freshwater results |
| | | | D | | Logan Catchment |
| | | - Streams generally in poor condition.
- Substantial improvements in the Ecosystem Processes and Fish indicators, and a slight improvement in Aquatic Macroinvertebrates.
- Declines in the Physical/Chemical and Nutrient Cycling indicators.
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| | | Estuarine results |
| | | | D- | | Logan Estuary |
| | | - Increase in nitrogen and continued high phosphorus concentration and turbidity levels.
- Increase in phytoplankton abundance and a decline in dissolved oxygen.
- Salinity throughout estuary lowest since 2001, indicative of high freshwater inputs.
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