Dickson Inlet

The area of the Dickson Inlet 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 6.5 km north-east and 3.5 km south of the inlet mouth along the coastline and extends approximately 3.3 km inland. The area includes several coastal tributaries that drain into the Inlet. Land use within the Dickson Inlet estuary area is dominated by residential and tourism service developments. There is a marina located within the Inlet. The town of Port Douglas (population 3,205) is located within the estuary area and is a major tourism centre which attracts many national and international visitors each year.

Scroll down for further detailed results for each indicator group.

Grading

gradesa1

very good

gradesb1

good

gradesc1

moderate

gradesd1

poor

gradese1

very poor

insufficient data

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

confidence

Water quality

Hover over each segment for indicator scores and data confidence.

A water quality overall score and grade cannot be provided for Dickson Inlet in 2015-16 due to insufficient data.

Estuarine water quality monitoring of the indicators required for the water quality index has commenced in Dickson Inlet and will be available for future report cards.

Habitat and hydrology

Hover over each segment for indicator scores and data confidence.

The overall habitat and hydrology grade for Dickson Inlet is graded ‘good’.

The mangrove and saltmarsh extent scored 75.2 (‘good’) with 7.9% loss from pre-clear to 2013. The riparian extent scored 47.8 (‘moderate’) with 24.9% loss from pre-clear to 2013. These results reflect the surrounding development which has occurred along the fringe of the estuary area.

For estuary fish barriers, Dickson Inlet scored 100 (‘very good’) due to an absence of barriers on assessable waterways.

Estuary riparian extent, mangrove and saltmarsh extent and estuary fish barriers are updated every four years. The data for riparian extent, mangrove and saltmarsh extent is to be updated in 2018.

Although seagrass habitat occurs in Dickson Inlet there is currently no seagrass monitoring at the estuary and a seagrass grade and score is not available.

The method for the flow indicator is 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.