Donnelly River - Gregory Road

Basin : Donnelly River

Catchment : Donnelly River

The Gregory Road site (site code: DR196DONN1/6084012) has been assessed on several occasions:

  • 13-14 October 2020
  • 9-10 June 2021
  • 25-26 August 2021
  • 10-11 November 2021
  • 5-6 December 2022
  • 29-30 July 2024
  • 30-31 July 2024
  • 31 July -1 August 2024

Only aquatic biota was assessed, using the standard methods from the South West Index of River Condition.

Condition summary

Please contact the River Science Branch for site information.

Fish and crayfish

Seven fish and four crayfish species were found during the assessments:

  • Bostockia porosa (Nightfish)
  • Galaxiella munda (Western mud minnow)
  • Galaxias occidentalis (Western minnow)
  • Nannoperca vittata (Western pygmy perch)
  • Pseudogobius olorum (Swan River goby)
  • Gambusia holbrooki (Eastern gambusia) – non-native
  • Oncorhynchus mykiss (Rainbow trout)
  • Cherax cainii (Smooth marron)
  • Cherax crassimanus (Restricted gilgie)
  • Cherax preissii (Koonac)
  • Cherax quinquecarinatus (Gilgie)

The presence of the western mud minnow is of ecological significance and a conservation priority.

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

  • Palaemon australis (South-west glass shrimp)

 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