Goomadeer River

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Goomadeer
Australia Northern Territory relief location map.png
Red pog.svg
Location of the Goomadeer River mouth in the Northern Territory
Etymologyfrom Kunwinjku 'Kumardderr'
Location
Country Australia
Territory Northern Territory
Physical characteristics
Source 
  elevation274 m (899 ft)
Mouth Junction Bay
  location
Australia
  coordinates
11°50′56″S133°49′30″E / 11.84889°S 133.82500°E / -11.84889; 133.82500 Coordinates: 11°50′56″S133°49′30″E / 11.84889°S 133.82500°E / -11.84889; 133.82500
  elevation
0 m (0 ft)
Length138 km (86 mi)
Basin size5,684 km2 (2,195 sq mi)
Discharge 
  average36.1 m3/s (1,270 cu ft/s)
Basin features
Tributaries 
  rightGumardir River
[1] [2]

The Goomadeer River is a river in the Northern Territory, Australia.

Contents

Etymology

The name comes from the Kunwinjku Kumardderr, which is the name of an area that the river flows through. [3]

Description

The headwaters are located on the sandstone plateau fed by springs [4] in Arnhem Land at an elevation of 274 metres (899 ft) and flows in a northerly direction through mostly uninhabited lands and eventually discharges into Junction Bay and the Arafura Sea. The only tributary of the river is the Gumardir River.

The estuary formed at the river mouth is in near pristine condition and occupies an area of 24.9 hectares (62 acres) of open water. It is riverdominated in nature with a tide dominated delta having a single channel and is surrounded by an area of 11.2 square kilometres (4 sq mi) covered with mangroves. [5]

The catchment occupies an area of 5,684 square kilometres (2,195 sq mi) and is situated between the East Alligator River catchment to the west and the Liverpool River catchment to the east. [2] It has an annual discharge of 1,140 gigalitres (1.491×109 cu yd). [6]

Flora and fauna

The riparian vegetation of the river is in good condition but are declining as a result of the proliferation of feral pigs and buffalo and the invasion of some weed species. [7]

19 species of fish are found in the river including; the Macleay's Glassfish, Barred Grunter, Sooty Grunter, Fly-specked Hardyhead, Northern Trout Gudgeon, Gulf Saratoga, Barramundi, Oxeye Herring, Rainbowfish, Black-banded Rainbowfish, Bony Bream, Catfish, Freshwater Longtom, Seven-spot Archerfish and the Sleepy Cod. [8]

The pig-nosed turtle, a threatened species of turtle, is known to inhabit sections of the river, but only in small populations. [9]

See also

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References

  1. "Map of Goomadeer River, NT". Bonzle Digital Atlas of Australia. Retrieved 9 May 2015.
  2. 1 2 "Drainage Divisions" (PDF). Commonwealth of Australia. 2005. Archived from the original (PDF) on 1 April 2015. Retrieved 9 May 2015.
  3. Garde, Murray. "Kumardderr". Bininj Kunwok Dictionary. Bininj Kunwok Regional Language Centre. Retrieved 16 June 2019.
  4. U. Zaar (2003). "Water Resources of West Arnhem Land" (PDF). Department of Infrastructure, Planning and Environment. Retrieved 9 May 2015.
  5. "Goomadeer River, NT". Australian online Coastal Information. Commonwealth of Australia . Retrieved 24 May 2015.
  6. S. Larson and K. Alexandridis (2009). "Goomadeer River" (PDF). TRaCK. Retrieved 9 May 2015.
  7. "Arnhem Coast - Bioregional description". Northern Territory Government. Archived from the original on 1 April 2015. Retrieved 10 May 2015.
  8. "Goomadeer River catchment". Fish Atlas of North Australia. Retrieved 10 May 2015.
  9. "Pig-nosed Turtle (Carettochelys insculpta)". Department of the Environment. 13 July 2005. Retrieved 10 May 2015.