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 Pine reporting area, which was awarded a 2009 Report Card grade of ‘C‑’, slightly higher than its 2008 grade of ‘D+’. Streams were generally in fair condition. While there was a decline in the results for the Nutrient Cycling indicator, that change was offset by increases in all other indicators, particularly Fish, resulting in a slight improvement in grade.

The three highest scoring indices for the Pine reporting area during 2008‑09 were R₂₄ (Annual Reporting Area Index Score = 1.00), GPP (0.97) and Conductivity (0.97). The three lowest scoring indices for the area were δ¹³C (0.58), O/E₅₀ (0.59) and δ¹⁵N (0.68).

The assessment site yielding the highest annual score (indicating the best ecological condition) during 2008‑09 was one on Cedar Creek (site 142‑0007) with a very good score of 0.85. The assessment site yielding the lowest annual score (indicating the worst ecological condition) during 2008‑09 was one on Mosquito Creek (site 142‑0008), albeit with a good score of 0.73. This site is located within a rural residential area and a short distance upstream of the impounded waters of Lake Kurwongbah.

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: 825km²
• Stream network length: 1,770km
• Local Councils: Brisbane City Council, Moreton Bay Regional Council
• Dominant land uses: native bush, grazing, rural residential, urban
• The upper catchment of the North and South Pine Rivers is part of the undeveloped areas of Brisbane Forest Park and Bunyaville State Forest
• The mid reaches flow through rural residential areas, before entering the highly urbanised lower catchment
• The North Pine River is impounded by North Pine Dam to form Lake Samsonvale. Another impoundment, Lake Kurwongbah, is situated on a tributary of the North Pine River
• Residential development is the major pressure on the catchment

Fish

Fish species identified in Pine streams