Upper Chapman Brook - Bridgelands Road

Basin : Blackwood River

Catchment : Lower Blackwood River

The condition of the Upper Chapman Brook - Bridgelands Road site (site code: UCHAPX2), in the middle catchment of the Upper Chapman Brook was assessed between 22 and 23 October 2012 and 4 and 5 February 2013 over a 100-m length of stream. At this time no previous assessments of river ecology had been reported. Note: this site is close to the Upper Chapman Brook - Upstream Bridgelands Road (BR37-UPPE1) site, but is considered a separate sampling site.

The assessment was conducted using standard methods from the South West Index of River Condition. Measures chosen for this assessment included fish and crayfish, macroinvertebrates, aquatic habitat, water quality (dissolved oxygen and temperature logged over 24h, and electrical conductivity, pH, colour, alkalinity, turbidity and nutrients), fringing vegetation, channel morphology, erosion, connectivity, local land use and flow. A water quality sample was also taken on 19 June 2012.

Condition summary

The site was assessed as part of  an assessment of river condition in the lower catchment of the Blackwood River – view report here.

A snapshot of the condition of the Upper Chapman Brook can be found here.

Fish and crayfish

Three fish and four crayfish species were found at this site, including one exotic crayfish (combination of October 2012 and February 2013 sampling). The exotic crayfish (Cherax destructor) was only found in October 2012.

A list of species is provided at the bottom of the page, click on the images to learn more about each species.

Note: only fish and crayfish are targeted by sampling methods, however where other species were caught and/or observed they are included below.

Species found in subcatchment

This includes all species found within the subcatchment of the assessment site, from this and previous studies in the area. The photos are linked to more information about each species, including maps of where they are expected across the south-west.