Upper Chapman Brook - Chalice Bridge Upstream

Basin : Blackwood River

Catchment : Lower Blackwood River

The condition of the Chalice Bridge Upstream site (site code: BR46UPPE1/6090085), in the middle catchment of the Upper Chapman Brook, has been assessed on several occasions:

  • 15-16 February 2016
  • 13-14 February 2019
  • 19-20 May 2020
  • 19-20 February 2024

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

Condition summary

Please contact the River Science Branch for site information.

Fish and crayfish

Four fish and two crayfish species were found at this site during the assessments:

  • Bostockia porosa (Nightfish)
  • Galaxias occidentalis (Western minnow)
  • Galaxiella munda (Western mud minnow)
  • Nannoperca vittata (Western pygmy perch)
  • Cherax cainii (Smooth marron)
  • Cherax quinquecarinatus (Gilgie)

Only fish and crayfish are targeted by sampling methods. Other species that were caught and/or observed are listed below:

  • Hydromys chrysogaster (Rakali), native, semi-aquatic mammal
  • Palaemon australis (South-west glass shrimp)
  • Westralunio carteri (Carter’s freshwater mussel)

Click on the images below to learn more.

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.

Explore other sites in the catchment