Daintree Estuary

The area of the Daintree estuary reporting zone can be defined by the pre-cleared extent of mangrove and saltmarsh remnant vegetation which is characterised by species that require periodic inundation of sea water. This area extends approximately 5.5 km northeast and 6.4 km south-west of the river mouth along the coastline and extends approximately 12 km inland. The area includes several coastal tributaries that drain into the Daintree River.

The assessment area of riparian extent extends further up the river than the mangrove and salt marsh communities to the upper tidal limit and includes vegetation types that are more typical of freshwater environments. Land use within and adjacent to the Daintree estuary area is dominated by cropping with some grazing and residential development. The Daintree village is approximately 16 km north-west of the river mouth. The lower Daintree River is listed in the Directory of (Nationally) Important Wetlands.

Scroll down for further detailed results for each indicator group.

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 circle diagrams has been assessed using a multi-criteria framework.

confidence

Water quality

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A water quality overall score and grade cannot be provided for the Daintree estuary in 2014/15 due to insufficient data. Estuarine water quality monitoring commenced early in 2016 for the Daintree River and will be available for the next report card.

Habitat and hydrology

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The overall habitat and hydrology grade for the Daintree estuary could not be determined due to insufficient data. The development of the flow and fish barrier indicators will provide sufficient data for habitat and hydrology to be reported for the Daintree estuary in future report cards.

The mangrove and saltmarsh extent scored 100 (very good) with 1.7 per cent loss from pre-clear to 2013. These results reflect a low level of development within the estuary area. Riparian extent is assessed to the upper tidal limit of the river which extends upstream of the estuary area that is characterised by mangroves and saltmarsh. Thus riparian assessment includes areas that have been cleared for agriculture and other developments.

The riparian extent scored 28.1 (Very poor) with 45.1 per cent loss from pre-clear to 2013.
Estuary riparian extent and mangrove and saltmarsh extent are updated every four years and the figures in the pilot report card are the most current. The data for both are due to be updated in 2017/18.

The methods for the flow and fish barrier indicators are currently under development and will be available for future report cards.

Fish

Hover over each segment for indicator scores and data confidence.

The fish index is currently under development and will be available in future report cards.

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