Seven Mile Creek - Upstream Lake Powell
Basin : Denmark Coast
Catchment : Marbelup Brook
The condition of the Seven Mile Creek - Upstream Lake Powell site (site code: SEVE-01), in the lower catchment of Seven Mile Creek, was assessed between 10 and 11 November 2009, over a 100-m length of stream. At this time no previous assessments of river ecology had been reported.
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 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.
The site was assessed as part of a national assessment of river condition – view report here.
An online condition summary for this site has not been prepared. Please contact the Departments River Science team for site information, and see below for links to information on some of the species found at the site, and some images taken in November 2009.
Fish and crayfish
Three fish and two crayfish species were found at this site in November 2009, no exotic fish or crayfish were found.
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.