Leven River Estuary Water Quality and Ecological Indicators

Monitoring data from the Leven River estuary includes water column measurements for salinity, temperature, dissolved oxygen, turbidity, pH, nutrients, and chlorophyll a, alongside sediment analysis for chlorophyll a and macroinvertebrate communities. The program, developed by Crawford and White (2006), assessed the condition of six key estuaries in North-West Tasmania. Data collection was implemented by the Australian Ocean Data Network, with a record last updated in April 2026.

Use Cases

• Analyze correlations between nutrient levels (nitrate+nitrite, dissolved reactive phosphorus, ammonia) and chlorophyll a concentrations to assess eutrophication.
• Model dissolved oxygen and temperature time-series to identify hypoxic events or seasonal patterns in the Leven River estuary.
• Classify benthic macroinvertebrate community structure from sediment samples as an indicator of ecological degradation.
• Assess water clarity and primary productivity by examining relationships between turbidity, silica molybdate reactive levels, and chlorophyll a.

Strengths

• Data covers a range of 10+ key water quality and ecological indicators for a comprehensive estuary assessment.
• Monitoring program follows a published methodology (Crawford and White, 2006) designed for six key NW Tasmanian estuaries.

Limitations

• Sample size and temporal coverage (e.g., number of sampling events or years) are unspecified, limiting trend analysis.
• Data is specific to the Leven River, potentially limiting generalizability without data from the other five estuaries in the program.

Provenance

Source

Australian Ocean Data Network, implementing a program by Crawford and White (2006).

Collection Method

Field monitoring program assessing water column and sediment indicators.

Freshness

Record metadata was last updated in April 2026, indicating recent maintenance.

Geography

Leven River estuary, North-West Tasmania, Australia.