Dailey, Duke and Thomas Rivers

Three sites were sampled on the the Dailey and Duke river systems and one on the Thomas River; they are shown on the map above. Photographs are available for each site:



The Dailey, Duke and Thomas river systems were sampled on the 15th and 16th of September 2006.


Only one type of fish was found in these systems (Gobi). The introduced Yabby (crustacean) was also found. Pictures of these can be viewed in the gallery.

River foreshore vegetation condition

The condition of the vegetation bordering the river at the sites sampled varied from near pristine to slightly disturbed with some weed invasion evident.

Water Quality

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 temperature of the water at the sites ranged from 14.95 to 18.17°C.

Salinity was lowest in the Dailey River with 5.39ppt recorded at DAI03. The Duke Creek had a similarly low salinity. The Thomas River had a higher salinity of 22.11ppt which is below the salinity of seawater (35ppt).

All the sites had neutral to basic water with pH ranging from 7.64 to 7.88.

Total phosphorus recorded in the water at each site was similar and low ranging from 24 to 49 µg/L. Total nitrogen was similarly low with levels ranging from 320 to 570 µg/L.