Eight sites were sampled on the Pallinup River and its tributaries; they are shown on the map above. Photographs are available for each site:
The Pallinup River was sampled on the 13th to 16th of August 2007.
Three different types of fish were found, the Gobi, Spotted Minnow and Hardyhead, shrimps were also found. Pictures of these species can be viewed in the gallery
River foreshore vegetation condition
The vegetation condition next to the sites varied from near pristine to eroded. One site (PAL07) high up in the catchment was very degraded with soil washed away and weeds in the foreshore area. Site PAL03 on Corackerup Creek and PAL05 on Peenabup Creek were in the best condition and were considered near pristine as the vegetation was native and few weeds were seen. The remaining sites ranged from slightly disturbed to having soil exposed from erosion and being degraded.
Water samples were taken once from each site so while they help describe the water quality at the time of sampling they can not be used to explain the overall condition of the river for the rest of the time.
The water temperature at the time of sampling ranged from 12 to 14.8°C.
Salinity was just above seawater (35ppt) at sites PAL04 and PAL05 with the remaining sites recording salinities below seawater from 32.2ppt down to 19.2ppt at the Hegarty Creek site (PAL02).
All the sites had slightly basic water with pH very similar at all sites and between pH 8.43 and 8.92.
Phosphorus levels in the water were quite high at sites PAL02 (180 µg/L), PAL05 (280 µg/L) and PAL06 (280 µg/L). The remaining sites ranged from 21 µg/L to 90 µg/L. Total nitrogen was measured in high concentrations at sites PAL04 (2600 µg/L), PAL05 (6300 µg/L) and PAL06 (2000 µg/L) with the remaining sites ranging from 1800 µg/L to 910 µg/L.