Estuaries

Estuaries Across the Region

The environmental health of the Wet Tropics estuaries is assessed on water quality, habitat and hydrology, and fish. For 2018-19 scores and grades are provided where data is available, with further development required for the fish index.

The eight estuaries included in the Wet Tropics Report Card region are Daintree, Dickson Inlet, Barron, Trinity Inlet, Russell-Mulgrave, Johnstone, Moresby and Hinchinbrook Channel.

For 2018-19 most estuaries were graded good. The exceptions were the Barron and Trinity Inlet, which were graded 'moderate'.

For estuaries across the Wet Tropics the period of August to November was very dry with low monthly rainfall compared to average monthly rainfall. This contrasted with the heavy rainfall events that commenced in December, which were very much above average. The effect of the rainfall pattern was evident for some water quality indicators, particularly in the Barron which showed strong seasonal change.

Estuarine

indicators and confidence

Grading

gradesa1

very good

gradesb1

good

gradesc1

moderate

gradesd1

poor

gradese1

very poor

gradesnd1

insufficient data

Confidence surrounding the data used in the coasters has been assessed using a multi-criteria framework.

confidence

Environmental results

click on the grades for more information about each zone

 

See the detailed reports for further information on the methods used to produce the scores and grades and the detailed results.