EcoH plots

Spring 2008	Autumn 2009

Previous Year Spring 2007 Autumn 2008

Change over time

Legend
		Fish indicator
		Physical/Chemical indicator
		Nutrient Cycling indicator
		Ecosystem Processes indicator
		Invertebrates indicator

A description of the indicators and methods used can be downloaded as a PDF file.

Indices

Legend

The charts show the distribution of the site scores for the catchment in a box and whisker plot. The image to the right shows the meaning of the different elements in the chart.

The number behind the charts is the number of sites with valid data. It can be less than the total number of sites in the catchment if some data could not be collected.

A description of the indicators and methods used can be downloaded as a PDF file.

Summary

Five sites were assessed in the Caboolture reporting area, which was awarded a 2009 Report Card grade of ‘C’, slightly lower than its 2008 grade of ‘C+’. Streams were generally in fair condition. The change in grade was associated with a slight improvement in the Ecosystem Processes indicator, but a substantial decrease in the Nutrient Cycling indicator.

The three highest scoring indices for the Caboolture reporting area during 2008‑09 were Temperature (Annual Reporting Area Index Score = 1.00), pH (0.98) and PONSE (0.97). The three lowest scoring indices for the area were δ¹⁵N (0.53), PET (0.70) and δ¹³C (0.76).

The assessment site yielding the highest annual score (indicating the best ecological condition) during 2008‑09 was one on Burpengary Creek (site 142‑0012) with an excellent score of 0.91. The assessment site yielding the lowest annual score (indicating the worst ecological condition) during 2008‑09 was one on Lagoon Creek (site 142‑0011) with a fair score of 0.64. This site is located downstream of, and within, a rural residential area.

Abbreviations glossary

Site scores

The scores range from 0.0 (worst) to 1.0 (best). A dash ('-') indicates that sufficient data was not available.

Flowchart for calculation of summary statistics based on site scores

Map

Click to open PDF version of the map.

Facts

• Total area: 468km²
• Stream network length: 795km
• Local Councils: Moreton Bay Regional Council
• Dominant land uses: native bush, grazing, rural residential, urban, poultry farms, strawberry and pineapple farms
• Upper catchment includes the undisturbed streams in the D'Aguilar National Park
• The mid and upper catchment is characterised mostly by agricultural and rural residential areas
• Two WWTPs discharge into the Caboolture River

Fish

Fish species identified in Caboolture streams