Estuaries

The environmental health of the Wet Tropics estuaries is assessed on water quality, habitat and hydrology, and fish for 2014/15. Scores and grades are provided where data is available, with further development required for the fish index.

Eight estuaries are included in the Wet Tropics Report Card region including, Daintree, Dickson Inlet, Barron, Trinity Inlet, Russell-Mulgrave, Johnstone, Moresby and Hinchinbrook Channel. From the available data overall grades are available for four of the eight estuaries - the Barron, Trinity Inlet, Russell-Mulgrave and Moresby. All four estuaries received a grade of moderate, with Trinity Inlet having the most available data.

Additional estuarine water quality monitoring commenced in early 2016 for the Daintree River, Moresby River and Hinchinbrook Channel. The results from these will be available for the next report card.

The 2014/15 year was subject to a late wet season with annual rainfall below and very much below the long term average. A very low rainfall year results in reduced runoff and erosion, which can result in lower sediment, and nutrient and pesticide mobilisation.

Estuarine

indicators and confidence

Grading

gradesa1

very good

gradesb1

good

gradesc1

moderate

gradesd1

poor

gradese1

very poor

gradesnd1

insufficient data

gradesna1

not applicable

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

 

Further information on the methods used to produce the scores and grades and detailed results can be found here.