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Murray–Darling basin

The Murray–Darling Basin is a large geographical area in the interior of southeastern Australia, encompassing the drainage basin of the tributaries of the Murray River, Australia's longest river, and the Darling River, a right tributary of the Murray and Australia's third-longest river. The Basin, which includes six of Australia's seven longest rivers and covers around one-seventh of the Australian landmass,[1] is one of the country's most significant agricultural areas providing one-third of Australia's food supply.[2] Located west of the Great Dividing Range, it drains southwest into the Great Australian Bight and spans most of the states of New South Wales and Victoria, the Australian Capital Territory, and parts of the states of Queensland (the lower third) and South Australia (the southeastern corner).

Murray–Darling Basin
One of the three main rivers of the basin, the Darling, near Menindee
(click to enlarge map)
Length3,375 km (2,097 mi)
Area1,061,469 km2 (409,835 sq mi)
Geology
Age69
Geography
CountryAustralia
States and
territories
Rivers
List

The Basin is 3,375 kilometres (2,097 mi) in length, with the Murray River being 2,508 km (1,558 mi) long. Most of the 1,061,469 km2 (409,835 sq mi) basin is flat, low-lying and far inland, and receives little direct rainfall. The many rivers it contains tend to be long and slow-flowing, and carry a volume of water that is large only by Australian standards.

The Snowy Mountains Scheme provides some security of water flows to the Murray–Darling Basin, providing approximately 2,100 gigalitres (7.4×1010 cu ft) of water a year to the Basin for use in Australia's irrigated agriculture industry, which is worth about A$3 billion per annum, representing more than 40% of the gross value of the nation's agricultural production.

The original inhabitants edit

The Basin was once home to a large number of Aboriginal people whose traditional lifestyle and cultures were gradually altered by the arrival of Europeans, while others were outright killed by the settlers. Although some tribes organised resistance, such as the Maraura, whose territory lay around the Rufus River above Renmark and the Tanganekald near The Coorong, they were eventually either killed, exiled, or succumbed to disease.[3]

Native fauna edit

The Murray–Darling Basin is home to many native animal species. The true numbers may not be known, but a fairly confident estimate has been made of these animals and the current status of their population. The study found [4] that there were:

  • 80 species of mammals, with 62 extinct and 10 endangered
  • 55 species of frogs, with 18 endangered
  • 46 species of snakes, with five endangered
  • five species of turtles, with none endangered
  • 34 species of fish, with up to half of them either threatened or of conservation significance[5]

Historical records show that the previous abundances of fish provided a reliable food source.[6] The bountiful fish became concentrated when the early stages of a flood left shallow water across the floodplain.[6] Today, roughly 24 native freshwater fish and another 15-25 marine and estuarine species are existent in the Basin, a very low biodiversity.[6]

2018–2019 fish kill edit

Over Christmas 2018 and January 2019 there were two mass deaths of fish in the waters of the Basin, the first numbering 10,000, the second in the hundreds of thousands.[7] Species affected were Murray cod, golden perch, silver perch and bony herring.[7] Some blamed the draining of water from the Menindee Lakes by WaterNSW, with only 2.5% of the original water volume in the lakes being left; after the first fish kill, both the Department of Primary Industries (DPI) and WaterNSW blamed the ongoing drought affecting Australia, while the DPI blamed the second kill on a disruption of an algal bloom caused by a sudden fall in temperature.[7]

2023 fish kill edit

In March 2023, millions of fish were reported dead along the Darling River at Menindee, following a heatwave.[8] As the cleanup began, police attributed the cause to (naturally occurring) hypoxic blackwater.[9] Initial investigations by the New South Wales Environment Protection Authority (EPA) included single water samples at six sites and were criticised as inadequate.[10] Subsequently it was announced that the New South Wales government will treat the deaths as a "pollution incident", thus giving the EPA greater investigative powers; earlier testing was described as being primarily intended to ensure public safety.[11]

Introduced species edit

Four varieties of carp were used to stock up fish dams. Since then they have made their way into the river systems, where they spread quite quickly. Human introduction, possibly by anglers using small carp illegally as live bait, has also increased their distribution.[12] These fish are very mobile, breed rapidly and can survive in very shallow water and through long periods of very low dissolved oxygen content.

Carp are a problem because they feed by sucking gravel from the riverbed and taking all the edible material off it, before returning the rest to the water. This stirs up all the sediment, reducing the quality of the water. A project for developing daughterless carp shows promise for eliminating carp from the river system.

Cane toads have entered the upper reaches of the Darling Basin and there are several reports of individuals being found further down the system.[13] Cane toads compete with native amphibians and are toxic to native carnivores.

Phyla canescens has invaded wetlands and floodplains with heavy clay soils in the Murray–Darling Basin, to the detriment of the native vegetation; the plant does best in habitats that are inundated occasionally, although it cannot compete with the grass Paspalum distichum and the sedge Eleocharis plana in more heavily inundated sites.[14]

Physiography edit

This area is one of the physiographic provinces of the larger East Australian Basins division, and encompasses the smaller Naracoorte Platform and Encounter Shelf physiographic sections.

Total water flow in the Murray–Darling Basin 1885 to the present has averaged around 24,000 gigalitres (24,000 hm3; 19,000,000 acre⋅ft) per year. This is the lowest rate of the world's major river systems.[1] About 6.0 percent of Australia's total rainwater falls into the Basin.[15] In most years only half of this quantity reaches the sea and in dry years much less. Estimated total annual flows for the Basin have ranged from 5,000 gigalitres (5,000 hm3; 4,100,000 acre⋅ft) in 1902 to 57,000 gigalitres (57,000 hm3; 46,000,000 acre⋅ft) in 1956.[citation needed] Despite the magnitude of the Basin, the hydrology of the streams within it is quite varied.

These waters are divided into four types:[16]

  • The Darling and Lachlan basins. These have extremely variable flows from year to year, with the smallest annual flow being typically as little as 1 percent of the long-term mean and the largest often more than ten times the mean. Periods of zero flow in most rivers can extend to months and in the drier parts (Warrego, Paroo and Lower Darling Basins) to years.[16] Flows in these rivers are not strongly seasonal. In the northern regions the majority of floods occur in the summer from monsoonal penetration. For most of the Darling and Lachlan catchments it is typical to see high or low flows begin in winter and extend to the following autumn (see El Niño). High water extraction rates for irrigation and mining have heavily compromised these rivers.
  • The southwestern basins (Campaspe, Loddon, Avoca, Wimmera). These have a marked winter rainfall maximum and relatively lower precipitation variability than the Lachlan or Darling. However, the age and infertility of the soils mean that run-off ratios are exceedingly low (for comparison, around a tenth that of a European or North American catchment with a similar climate[17]). Thus, variability of runoff is very high and most of the terminal lakes found in these basins very frequently dry up. Almost all runoff occurs in the winter and spring and, in the absence of large dams for regulation, these rivers are often seasonally dry during summer and autumn.
  • A number of small catchments in South Australia, of which the largest are the Angas River flowing through Strathalbyn and the Finniss River further west, are part of the Murray–Darling Basin. These catchments lead to Lake Alexandrina, one of the lakes at the end of the Murray system. The Angas River is often dry in summer because of high levels of water extraction. The Finniss River has permanent flow into Lake Alexandrina but was cut off by a weir for several years of drought in the early 21st century.
  • The Murray, Murrumbidgee and Goulburn (except the Broken River which resembles the southwestern basins) basins. Because these catchments have headwaters in alpine country with relatively young peaty soils, the runoff ratios are much higher than in other parts of the Basin. Consequently, although gross precipitation variability is no lower than in the Lachlan or Darling basins, runoff variability is markedly lower than in other parts of the Basin. Typically these rivers never cease to flow and the smallest annual flow is around 30 percent of the long-term mean and the largest around three times the mean. In most cases the flow peaks very strongly with the spring snow melt and troughs in mid-autumn.

The two principal rivers of the Basin, the Murray and Darling, bring water from the high ranges of the east and carry it west then south through long flat and dry inland areas,[18] often resulting in alluvial channel wetlands, such as The (Great) Cumbung Swamp, at the terminus of the Lachlan and Murrumbidgee Rivers. Nevertheless, these waters are subject to major diversions for municipal drinking supplies and irrigated agriculture that began in the 1890s.[6] Currently, 4 major reservoirs, 14 lock and weir structures, and five coastal barrages interject the water flowing down the Murray–Darling.[6] Of the approximately 13,000 gigalitres (13,000 hm3; 10,500,000 acre⋅ft) of flow in the Basin, which studies have shown to be divertible, 11,500 gigalitres (11,500 hm3; 9,320,000 acre⋅ft) are removed for irrigation, industrial use, and domestic supply. Agricultural irrigation accounts for about 95 percent of the water removed,[1] including for the growing of rice and cotton. This extraction is highly controversial among scientists in Australia, regarding the agriculture industry's high water use in a region extremely short of water (as much due to exceptionally low run-off coefficients as to low rainfall).[19] These extensive irrigation systems require a reliable supply of water, not the unpredictable flows that characterise the Murray–Darling.[6] These structures and irrigation implements were ideal when there was a steady flow of water.[20] However, during "the Big Dry", as the early 2000s drought came to be known, Australian farmers experienced a scarcity unlike ever before. The drought was so severe that numerous rivers and streams such as the Murray–Darling stopped flowing.[20] The Basin contains more than 30,000 wetlands.[21] Eleven of these are protected under the Ramsar Convention of Wetlands of International Importance.

Rivers in the Murray–Darling Basin edit

The rivers listed below comprise the Murray–Darling Basin and its direct significant tributaries, with elevations of their confluence with the downstream river. The tributary with the highest elevation is Swampy Plain River that rises in the Snowy Mountains, below Mount Kosciuszko at an elevation of 2,120 metres (6,960 ft), and ends merging with the Murray River, descending 1,860 metres (6,100 ft).

The ordering of the Basin, from downstream to upstream, is:

Rivers of the Murray–Darling Basin
Catchment river Elevation at
confluence
River mouth States River length
Tributary
Tributary
Tributary
Tributary
Tributary
Tributary m ft km mi
Murray River 0 0 Southern Ocean NSW, Vic, SA 2,375 1,476
Darling River 35 115 Murray NSW 1,472 915
Paroo River 94 308 Darling Qld, NSW 1,210 750
Warrego River 98 322 Darling Qld, NSW 1,380 860
Langlo River 280 920 Warrego Qld 440 270
Nive River 336 1,102 Warrego Qld 263 163
Culgoa River 109 358 Darling Qld, NSW 489 304
Birrie River 115 377 Culgoa Qld 197 122
Barwon River (New South Wales) 110 360 Darling NSW 700 430
Bokhara River 113 371 Barwon Qld, NSW 347 216
Namoi River 130 430 Barwon NSW 708 440
Mooki River 264 866 Namoi NSW 128 80
Peel River (New South Wales) 286 938 Namoi NSW 210 130
Cockburn River 384 1,260 Peel NSW 34 21
Manilla River 349 1,145 Namoi NSW 138 86
Macdonald River (Bendemeer) 705 2,313 Namoi NSW 169 105
Cobrabald River 990 3,250 Macdonald NSW 53 33
Gwydir River 144 472 Barwon NSW 488 303
Horton River 270 890 Gwydir NSW 128 80
Moredun Creek 645 2,116 Gwydir NSW 210 130
Rocky River (New South Wales) 760 2,490 Gwydir NSW 138 86
Mehi River 145 476 Barwon NSW 314 195
Moonie River 149 489 Barwon NSW 542 337
Boomi River 152 499 Barwon NSW, Qld 231 144
Macquarie River 154 505 Barwon NSW 960 600
Castlereagh River 121 397 Macquarie NSW 541 336
Talbragar River 258 846 Macquarie NSW 277 172
Coolaburragundy River 271 889 Talbragar NSW 156 97
Little River (Dubbo) 271 889 Macquarie NSW 122 76
Bell River (New South Wales) 285 935 Macquarie NSW 146 91
Cudgegong River 342 1,122 Macquarie NSW 250 160
Turon River 406 1,332 Macquarie NSW 117 73
Crudine River 563 1,847 Turon NSW 54 34
Fish River (New South Wales) 668 2,192 Macquarie NSW 119 74
Campbells River 706 2,316 Fish NSW 82 51
Duckmaloi River 1,010 3,310 Fish NSW 27 17
Weir River (Queensland) 166 545 Barwon Qld, NSW 197 122
Balonne River 171 561 Barwon Qld 479 298
Maranoa River 207 679 Balonne Qld 519 322
Merivale River 401 1,316 Maranoa Qld 205 127
Condamine River 256 840 Balonne Qld 657 408
Macintyre River 224 735 Barwon NSW, Qld 319 198
Dumaresq River 227 745 Macintyre NSW 214 133
Macintyre Brook 241 791 Dumaresq Qld 165 103
Beardy River 354 1,161 Dumaresq NSW 90 56
Pike Creek (Queensland) 360 1,180 Dumaresq Qld 117 73
Mole River (New South Wales) 363 1,191 Dumaresq Qld 73 45
Deepwater River 601 1,972 Mole NSW 84 52
Bluff River (New South Wales) 614 2,014 Mole NSW 13 8.1
Severn River (Queensland) 375 1,230 Dumaresq Qld, NSW 90 56
Severn River (New South Wales) 284 932 Macintyre NSW 52 32
Beardy Waters 884 2,900 Severn (NSW) NSW 70 43
Bogan River 111 364 Darling NSW 617 383
Little River (Parkes) 305 1,001 Bogan NSW 319 198
Murrumbidgee River 55 180 Murray NSW, ACT 1,488 925
Lachlan River 68 223 Murrumbidgee NSW 1,440 890
Belubula River 262 860 Lachlan NSW 165 103
Boorowa River 301 988 Lachlan NSW 134 83
Abercrombie River 375 1,230 Lachlan NSW 130 81
Isabella River (New South Wales) 479 1,572 Abercrombie NSW 51 32
Bolong River 589 1,932 Abercrombie NSW 60 37
Tumut River 220 720 Murrumbidgee NSW 182 113
Goobarragandra River 272 892 Tumut NSW 56 35
Doubtful Creek 1,290 4,230 Tumut NSW 15 9.3
Yass River 345 1,132 Murrumbidgee NSW 139 86
Goodradigbee River 345 1,132 Murrumbidgee NSW 105 65
Crookwell River 430 1,410 Murrumbidgee NSW 78 48
Molonglo River 440 1,440 Murrumbidgee NSW, ACT 115 71
Jerrabomberra Creek 554 1,818 Molonglo NSW, ACT 35 22
Sullivans Creek 556 1,824 Molonglo NSW, ACT 13 8.1
Queanbeyan River 567 1,860 Molonglo NSW, ACT 104 65
Cotter River 460 1,510 Murrumbidgee ACT 74 46
Paddys River (Australian Capital Territory) 477 1,565 Cotter ACT 28 17
Tidbinbilla River 618 2,028 Paddys ACT 13 8.1
Gibraltar Creek 647 2,123 Paddys ACT 13 8.1
Gudgenby River 573 1,880 Murrumbidgee ACT 35 22
Naas River 631 2,070 Gudgenby ACT 26 16
Orroral River 842 2,762 Gudgenby ACT 15 9.3
Bredbo River 695 2,280 Murrumbidgee NSW 52 32
Strike-a-Light River 733 2,405 Bredbo NSW 38 24
Numeralla River 706 2,316 Murrumbidgee NSW 94 58
Big Badja River 735 2,411 Numeralla NSW 32 20
Kybeyan River 745 2,444 Numeralla NSW 36 22
Wakool River 58 190 Murray NSW 363 226
Niemur River 63 207 Wakool NSW 155 96
Edward River (an anabranch) 61 200 Murray NSW 383 238
Little Murray River (Victoria) 67 220 Murray Vic 46 29
Loddon River 71 233 Murray Vic 392 244
Avoca River 74 243 Murray Vic 270 170
Little Murray River (New South Wales) 75 246 Murray NSW 22 14
Goulburn River, Victoria 100 330 Murray Vic 654 406
Broken River (Victoria) 118 387 Goulburn Vic 225 140
Yea River 162 531 Goulburn Vic 122 76
Murrindindi River 186 610 Yea Vic 26 16
Acheron River 190 620 Goulburn Vic 84 52
Little River (Cathedral Range) 207 679 Acheron Vic 22 14
Steavenson River 264 866 Acheron Vic 20 12
Taggerty River 368 1,207 Steavenson Vic 18 11
Rubicon River 200 660 Goulburn Vic 43 27
Royston River 381 1,250 Rubicon Vic 19 12
Big River (Goulburn River, Victoria) 259 850 Goulburn Vic 62 39
Delatite River 260 850 Goulburn Vic 83 52
Howqua River 265 869 Goulburn Vic 66 41
Jamieson River 294 965 Goulburn Vic 33 21
Campaspe River 123 404 Murray Vic 232 144
Coliban River 183 600 Campaspe Vic 89 55
Little Coliban River 501 1,644 Coliban Vic 12 7.5
Ovens River 125 410 Murray Vic 191 119
King River, Victoria 142 466 Ovens Vic 126 78
Buffalo River (Victoria) 206 676 Ovens Vic 65 40
Dandongadale River 279 915 Buffalo Vic 41 25
Catherine River (Victoria) 392 1,286 Buffalo Vic 25 16
Buckland River (Victoria) 274 899 Ovens Vic 38 24
Kiewa River 156 512 Murray Vic, NSW 109 68
Mitta Mitta River 180 590 Murray Vic 204 127
Dart River (Victoria) 452 1,483 Mitta Mitta Vic 29 18
Big River (Mitta Mitta River, Victoria) 655 2,149 Mitta Mitta Vic 52 32
Cobungra River 656 2,152 Mitta Mitta Vic 55 34
Victoria River (Victoria) 830 2,720 Cobungra Vic 25 16
Tooma River 238 781 Murray NSW 74 46
Swampy Plain River 269 883 Murray NSW, Vic 59 37
Geehi River 439 1,440 Swampy Plain Vic 47 29

Murray–Darling Basin Initiative edit

Background edit

The Basin affects five states and territory governments, which according to the Constitution, are responsible for managing water resources. The River Murray Commission was established in 1917.[1] Under the River Murray Waters Agreement, which did not include Queensland though about a quarter of the Basin lays in the state, the commission was an advisory body with no authority for enforcement of provisions. For a long time the commission was only concerned with water quantity until salinity became a problem.[22] This led to minor reforms in 1982 in which water quality became part of the commission's responsibilities.[1]

However, it was soon recognised that a new organisational structure which considered the national perspective was needed for effective management. The Murray–Darling Basin Agreement was first adopted in 1985 but it wasn't until 1993 that its full legal status was enacted.[1] The Agreement led to the creation of a number of new organisations under what is known as the Murray–Darling Basin Initiative. These included the Murray–Darling Basin Ministerial Council and the Murray–Darling Basin Commission.

Murray–Darling Basin Plan edit

The Murray–Darling Basin Authority (MDBA) was formed in 2008 to manage the Murray–Darling Basin in an integrated and sustainable manner, in conjunction with the Basin states. The MDBA is responsible for preparing and overseeing a legally-enforceable management plan. In October 2010, MDBA released a draft Murray–Darling Basin Plan (MDBP) for consultation. After a difficult consultation process, on 22 November 2012, Tony Burke, Minister for Sustainability, Environment, Water, Population and Communities, signed the Murray–Darling Basin Plan, which passed the Australian Parliament's disallowance period on 19 March 2013.

Community consultation edit

The MDBA's draft Murray–Darling Basin Plan, titled the Guide to the Proposed Murray–Darling Basin Plan, was released in October 2010 as the first part of a three-stage process to address the problems of the Murray–Darling Basin.[23] The Plan was in response to the 2000s Australian drought, and designed to secure the long-term ecological health of the Murray–Darling Basin. This entailed cutting existing water allocations and tree growth environmental flows.[24] The Basin Plan was designed to set environmentally sustainable limits on the quantities of water that may be taken from Basin water resources, to set Basin-wide environmental, water quality and salinity objectives, to develop efficient water trading regimes across the Basin, to set requirements for state water resource plans and to improve water security for all Basin users.[25] It also intends to minimise social and economic impacts whilst achieving the plan's environmental outcomes.[26]

With the release of the Guide to the Proposed Murray–Darling Basin Plan there have been a number of protests and voiced concerns about the plan in rural towns that the MDBA visited to present the plan to consultation meetings.[27] More than 5,000 people attended a MDBA meeting in Griffith where Griffith Mayor, Mike Neville, said the plan would "obliterate" Murrumbidgee valley communities.[28] Other groups also echo this feeling, such as the Victorian Farmers Federation[29] and Wine Group Growers' Australia.[30] Conversely, support for the Murray–Darling Basin plan has been received by various groups, including Australian Conservation Foundation,[31] and Environment Victoria.[32]

New legal advice from Commonwealth government lawyers is changing the plan. The Government's interpretation is that the plan must give equal weight to the environmental, social, and economic impacts of proposed cuts to irrigation.

Environmentalists and South Australian irrigators, at the end of the river in South Australia, say that the authority should stick to its original figure.[33]

In October 2010, a parliamentary inquiry into the economic impacts of the plan was announced.[34]

In late October 2010 the Water Minister, Tony Burke, played down the prospect of a High Court challenge to the Murray–Darling Basin plan, as confusion continued over new legal advice released by the Government. In response to community concerns that MDBA had put environmental issues first over social and economic needs, Burke released new advice on the requirements of the Water Act. Burke stated that the Act does allow for the authority to "optimise" the needs of all three areas, but constitutional lawyer, George Williams, had cast doubts over the interpretation of the laws, stating it could be subject to a legal challenge.[35]

The MDBA announced in November 2010 that it might be forced to push back the release of its final plan for the river system until early 2012.[36]

The then MDBA chairman, Mike Taylor, reassured the public meeting that more work is being done to look at how the proposed cuts would affect regional communities. He stated: "Importantly, we want to make sure the social and economic impacts—which under any sort of scenario is very significant—were fully teased out".[37] Taylor resigned as he allegedly believed that the overriding principle should be the environmental outcome which was in conflict with the Gillard Government and following a period of sustained criticism of the Authority and the implementation of the proposed draft Basin plan.[38] He was replaced by former New South Wales Planning Minister, Craig Knowles.[39][40][41]

In late May 2012, the revised plan was forwarded to state water ministers.[42] It did not alter the recommendation to cut 2,750 gigalitres (2.75 km3; 2,230,000 acre⋅ft) of water entitlements.

Following much negotiation between the Commonwealth and State governments and numerous submissions from interested stakeholders and the community, the Basin Plan became law in November 2012 and can now be implemented.

See also edit

References edit

  1. ^ a b c d e f Pigram, John J. (2007). Australia's Water Resources: From use to management. Collingwood, Victoria: CSIRO Publishing. pp. 160–162. ISBN 978-0-643-09442-0.
  2. ^ Pollino, Carmel A.; Hart, Barry T.; Nolan, Martin; Byron, Neil; Marsh, Rod (2021). Murray-Darling Basin, Australia: Its Future Management: Volume 1 in Ecohydrology from Catchment to Coast. Elsevier. pp. 21–46. ISBN 978-0-12-818152-2.
  3. ^ H. A. Lindsay (1975). "Ch. 11: Aborigines in the Murray Valley". In G. V. Lawrence and Graeme Kinross Smith (ed.). The Book of the Murray. Rigby Ltd. ISBN 0-85179-917-5.
  4. ^ Australian Government. (2015, November 24). Animals of the Murray–Darling Basin. Retrieved October 19, 2020, from www.mdba.gov.au website: https://www.mdba.gov.au/importance-Murray–Darling-basin/plants-animals-animals
  5. ^ (PDF). Murray–Darling Basin Authority. August 2012. Archived from the original (PDF) on 13 November 2012. Retrieved 7 October 2012.
  6. ^ a b c d e f Wohl, Ellen E. (2010), A World of Rivers: Environmental Change on Ten of the World's Great Rivers, Chicago: University of Chicago Press
  7. ^ a b c Davies, Anne (7 January 2019). "Hundreds of thousands of native fish dead in second Murray–Darling incident". The Guardian. Retrieved 17 January 2019.
  8. ^ Radford, Antoinette (18 March 2023). "Menindee: Millions of dead fish wash up near Australian town". BBC. Retrieved 20 March 2023.
  9. ^ Housden, Tom (20 March 2023). "Menindee: Australia begins mass fish death clean-up". BBC. Retrieved 20 March 2023.
  10. ^ "EPA's water testing after Menindee fish kill was flawed and insufficient, expert says". www.theguardian.com. 18 April 2023. Retrieved 21 April 2023.
  11. ^ "NSW to investigate Menindee mass fish kill as 'pollution incident'". www.theguardian.com. 19 April 2023. Retrieved 21 April 2023.
  12. ^ "General information about carp - biology, ecology and impacts". New South Wales Department of Primary Industries. Retrieved 10 February 2012.
  13. ^ Ayers, D., Mazzer, T.M. and Ellis, M.V. (2004). Herpetofauna of the Darling Basin. In: The Darling (Eds. R. Breckwoldt, R. Boden and J. Andrew) (Murray–Darling Basin Commission, Canberra).
  14. ^ MacDonald, Matthew (2008). "Ecology of Phyla canescens (Verbenaceae) in Australia". Thesis. University of New England. Retrieved 10 September 2021.
  15. ^ Prideaux, Bruce (2009). "River Heritage: the Murray–Darling River". In Prideaux, Bruce; Cooper, Malcolm (eds.). River Tourism. Wallingford, United Kingdom: CAB International. p. 167. ISBN 978-1-84593-468-2. Retrieved 18 December 2011.
  16. ^ a b Brown, J. A. H. (John Alexander Henstridge); Australia's Surface Water Resources. ISBN 0-644-02617-0
  17. ^ McMahon, T.A. and Finlayson, B.L.; Global Runoff: Continental Comparisons of Annual Flows and Peak Discharges; pp. 86–98 ISBN 3-923381-27-1.
  18. ^ Weir, Jessica K. 2009. Murray River country: an ecological dialogue with traditional owners. Canberra: Aboriginal Studies Press.
  19. ^ Government, politics, power and policy in Australia / [editors] Dennis Woodward, Andrew Parkin, John Summers.
  20. ^ a b Richter, Brian D. (2014), Chasing water: a guide for moving from scarcity to sustainability
  21. ^ Connell, Daniel (January 2015). "Irrigation, water markets and sustainability in Australia's Murray–Darling Basin". Agriculture and Agricultural Science Procedia. 4: 133–139. doi:10.1016/j.aaspro.2015.03.016.
  22. ^ "Murray- Darling river: Water quality management". 29 September 2015. Retrieved 23 August 2016.
  23. ^ Clarke, Sarah (8 October 2010). . ABC News. Australian Broadcasting Corporation. Archived from the original on 17 April 2011.
  24. ^ Joseph Thomsen (12 October 2010). "MDBA Chair explains water allocation cuts". ABC Goulburn Murray. Australian Broadcasting Corporation. Retrieved 17 October 2010.
  25. ^ Murray–Darling Basin Authority, (PDF), Australian Government, archived from the original (PDF) on 10 April 2013
  26. ^ Arup, Tom (31 May 2010). . The Sydney Morning Herald. Fairfax Media. Archived from the original on 7 November 2012.
  27. ^ . ABC News. Australian Broadcasting Corporation. 15 October 2010. Archived from the original on 31 October 2010.
  28. ^ "Griffith irrigators vent anger". Weekly Times. 20 October 2010. Retrieved 21 October 2010.
  29. ^ VFF Declares War!: Stop the MDBA plundering Archived 17 September 2012 at archive.today.
  30. ^ Federal Government urged "not to forget people" in Basin Plan 6 July 2011 at the Wayback Machine. Media Release. 13 October 2010.
  31. ^ Cautious support from scientists for the emerging Murray‐Darling Basin Plan[permanent dead link].
  32. ^ , Environment Victoria, 11 March 2010, archived from the original on 31 October 2012
  33. ^ Om, Jason (27 October 2010). . ABC News. Australian Broadcasting Corporation. Archived from the original on 12 November 2012.
  34. ^ Lee, Tim (18 October 2010). . ABC News. Archived from the original on 22 December 2010.
  35. ^ Rodgers, Emma (28 October 2010). . ABC News. Australian Broadcasting Corporation. Archived from the original on 30 October 2010.
  36. ^ Binnie, Kerrin (2 November 2010). . ABC News. Australian Broadcasting Corporation. Archived from the original on 4 November 2010.
  37. ^ . ABC News. Australian Broadcasting Corporation. 4 November 2010. Archived from the original on 4 November 2010.
  38. ^ Rodgers, Emma (7 December 2010). . ABC News. Australian Broadcasting Corporation. Archived from the original on 12 November 2012.
  39. ^ Coorey, Phillip (28 January 2011). . The Sydney Morning Herald. Fairfax Media. Archived from the original on 29 October 2016.
  40. ^ Coorey, Phillip (29 January 2011). . The Sydney Morning Herald. Fairfax Media. Archived from the original on 7 November 2012. Retrieved 29 January 2011.
  41. ^ Kruger, Paula (28 January 2011). . ABC News. Australian Broadcasting Corporation. Archived from the original on 5 March 2011.
  42. ^ Anna Vidot and rural reporters (28 May 2012). . ABC Rural. Australian Broadcasting Corporation. Archived from the original on 29 May 2012. Retrieved 29 May 2012.

External links edit

  • Murray–Darling Basin Authority
  • Murray–Darling Basin Water Budget Project
  • Murray Darling Freshwater Research Centre
  • Murray Outback - Guide to the major towns on the Murray and Murray Outback Region.
  • - lobby group
  • Murray Darling Basin Resources
  • Basin Plan - lobby group
News
  • "Fire, Flood and Acid Mud", Catalyst, Australian Broadcasting Corporation, from the original on 19 April 2016

murray, darling, basin, murray, darling, redirects, here, wine, region, murray, darling, murray, darling, basin, large, geographical, area, interior, southeastern, australia, encompassing, drainage, basin, tributaries, murray, river, australia, longest, river,. Murray Darling redirects here For the wine region see Murray Darling The Murray Darling Basin is a large geographical area in the interior of southeastern Australia encompassing the drainage basin of the tributaries of the Murray River Australia s longest river and the Darling River a right tributary of the Murray and Australia s third longest river The Basin which includes six of Australia s seven longest rivers and covers around one seventh of the Australian landmass 1 is one of the country s most significant agricultural areas providing one third of Australia s food supply 2 Located west of the Great Dividing Range it drains southwest into the Great Australian Bight and spans most of the states of New South Wales and Victoria the Australian Capital Territory and parts of the states of Queensland the lower third and South Australia the southeastern corner Murray Darling BasinOne of the three main rivers of the basin the Darling near Menindee click to enlarge map Length3 375 km 2 097 mi Area1 061 469 km2 409 835 sq mi GeologyAge69GeographyCountryAustraliaStates andterritoriesList QueenslandNew South WalesVictoriaSouth Australia Australian Capital TerritoryRiversList MurrayDarlingMurrumbidgeeWarregoLachlanGoulburnCampaspeMitta MittaLoddonand numerous other tributaries as listed in the table The Basin is 3 375 kilometres 2 097 mi in length with the Murray River being 2 508 km 1 558 mi long Most of the 1 061 469 km2 409 835 sq mi basin is flat low lying and far inland and receives little direct rainfall The many rivers it contains tend to be long and slow flowing and carry a volume of water that is large only by Australian standards The Snowy Mountains Scheme provides some security of water flows to the Murray Darling Basin providing approximately 2 100 gigalitres 7 4 1010 cu ft of water a year to the Basin for use in Australia s irrigated agriculture industry which is worth about A 3 billion per annum representing more than 40 of the gross value of the nation s agricultural production Contents 1 The original inhabitants 2 Native fauna 2 1 2018 2019 fish kill 2 2 2023 fish kill 3 Introduced species 4 Physiography 4 1 Rivers in the Murray Darling Basin 5 Murray Darling Basin Initiative 5 1 Background 5 2 Murray Darling Basin Plan 5 2 1 Community consultation 6 See also 7 References 8 External linksThe original inhabitants editThe Basin was once home to a large number of Aboriginal people whose traditional lifestyle and cultures were gradually altered by the arrival of Europeans while others were outright killed by the settlers Although some tribes organised resistance such as the Maraura whose territory lay around the Rufus River above Renmark and the Tanganekald near The Coorong they were eventually either killed exiled or succumbed to disease 3 Native fauna editThe Murray Darling Basin is home to many native animal species The true numbers may not be known but a fairly confident estimate has been made of these animals and the current status of their population The study found 4 that there were 80 species of mammals with 62 extinct and 10 endangered 55 species of frogs with 18 endangered 46 species of snakes with five endangered five species of turtles with none endangered 34 species of fish with up to half of them either threatened or of conservation significance 5 Historical records show that the previous abundances of fish provided a reliable food source 6 The bountiful fish became concentrated when the early stages of a flood left shallow water across the floodplain 6 Today roughly 24 native freshwater fish and another 15 25 marine and estuarine species are existent in the Basin a very low biodiversity 6 2018 2019 fish kill edit Over Christmas 2018 and January 2019 there were two mass deaths of fish in the waters of the Basin the first numbering 10 000 the second in the hundreds of thousands 7 Species affected were Murray cod golden perch silver perch and bony herring 7 Some blamed the draining of water from the Menindee Lakes by WaterNSW with only 2 5 of the original water volume in the lakes being left after the first fish kill both the Department of Primary Industries DPI and WaterNSW blamed the ongoing drought affecting Australia while the DPI blamed the second kill on a disruption of an algal bloom caused by a sudden fall in temperature 7 2023 fish kill edit In March 2023 millions of fish were reported dead along the Darling River at Menindee following a heatwave 8 As the cleanup began police attributed the cause to naturally occurring hypoxic blackwater 9 Initial investigations by the New South Wales Environment Protection Authority EPA included single water samples at six sites and were criticised as inadequate 10 Subsequently it was announced that the New South Wales government will treat the deaths as a pollution incident thus giving the EPA greater investigative powers earlier testing was described as being primarily intended to ensure public safety 11 Introduced species editFour varieties of carp were used to stock up fish dams Since then they have made their way into the river systems where they spread quite quickly Human introduction possibly by anglers using small carp illegally as live bait has also increased their distribution 12 These fish are very mobile breed rapidly and can survive in very shallow water and through long periods of very low dissolved oxygen content Carp are a problem because they feed by sucking gravel from the riverbed and taking all the edible material off it before returning the rest to the water This stirs up all the sediment reducing the quality of the water A project for developing daughterless carp shows promise for eliminating carp from the river system Cane toads have entered the upper reaches of the Darling Basin and there are several reports of individuals being found further down the system 13 Cane toads compete with native amphibians and are toxic to native carnivores Phyla canescens has invaded wetlands and floodplains with heavy clay soils in the Murray Darling Basin to the detriment of the native vegetation the plant does best in habitats that are inundated occasionally although it cannot compete with the grass Paspalum distichum and the sedge Eleocharis plana in more heavily inundated sites 14 Physiography editThis area is one of the physiographic provinces of the larger East Australian Basins division and encompasses the smaller Naracoorte Platform and Encounter Shelf physiographic sections Total water flow in the Murray Darling Basin 1885 to the present has averaged around 24 000 gigalitres 24 000 hm3 19 000 000 acre ft per year This is the lowest rate of the world s major river systems 1 About 6 0 percent of Australia s total rainwater falls into the Basin 15 In most years only half of this quantity reaches the sea and in dry years much less Estimated total annual flows for the Basin have ranged from 5 000 gigalitres 5 000 hm3 4 100 000 acre ft in 1902 to 57 000 gigalitres 57 000 hm3 46 000 000 acre ft in 1956 citation needed Despite the magnitude of the Basin the hydrology of the streams within it is quite varied These waters are divided into four types 16 The Darling and Lachlan basins These have extremely variable flows from year to year with the smallest annual flow being typically as little as 1 percent of the long term mean and the largest often more than ten times the mean Periods of zero flow in most rivers can extend to months and in the drier parts Warrego Paroo and Lower Darling Basins to years 16 Flows in these rivers are not strongly seasonal In the northern regions the majority of floods occur in the summer from monsoonal penetration For most of the Darling and Lachlan catchments it is typical to see high or low flows begin in winter and extend to the following autumn see El Nino High water extraction rates for irrigation and mining have heavily compromised these rivers The southwestern basins Campaspe Loddon Avoca Wimmera These have a marked winter rainfall maximum and relatively lower precipitation variability than the Lachlan or Darling However the age and infertility of the soils mean that run off ratios are exceedingly low for comparison around a tenth that of a European or North American catchment with a similar climate 17 Thus variability of runoff is very high and most of the terminal lakes found in these basins very frequently dry up Almost all runoff occurs in the winter and spring and in the absence of large dams for regulation these rivers are often seasonally dry during summer and autumn A number of small catchments in South Australia of which the largest are the Angas River flowing through Strathalbyn and the Finniss River further west are part of the Murray Darling Basin These catchments lead to Lake Alexandrina one of the lakes at the end of the Murray system The Angas River is often dry in summer because of high levels of water extraction The Finniss River has permanent flow into Lake Alexandrina but was cut off by a weir for several years of drought in the early 21st century The Murray Murrumbidgee and Goulburn except the Broken River which resembles the southwestern basins basins Because these catchments have headwaters in alpine country with relatively young peaty soils the runoff ratios are much higher than in other parts of the Basin Consequently although gross precipitation variability is no lower than in the Lachlan or Darling basins runoff variability is markedly lower than in other parts of the Basin Typically these rivers never cease to flow and the smallest annual flow is around 30 percent of the long term mean and the largest around three times the mean In most cases the flow peaks very strongly with the spring snow melt and troughs in mid autumn The two principal rivers of the Basin the Murray and Darling bring water from the high ranges of the east and carry it west then south through long flat and dry inland areas 18 often resulting in alluvial channel wetlands such as The Great Cumbung Swamp at the terminus of the Lachlan and Murrumbidgee Rivers Nevertheless these waters are subject to major diversions for municipal drinking supplies and irrigated agriculture that began in the 1890s 6 Currently 4 major reservoirs 14 lock and weir structures and five coastal barrages interject the water flowing down the Murray Darling 6 Of the approximately 13 000 gigalitres 13 000 hm3 10 500 000 acre ft of flow in the Basin which studies have shown to be divertible 11 500 gigalitres 11 500 hm3 9 320 000 acre ft are removed for irrigation industrial use and domestic supply Agricultural irrigation accounts for about 95 percent of the water removed 1 including for the growing of rice and cotton This extraction is highly controversial among scientists in Australia regarding the agriculture industry s high water use in a region extremely short of water as much due to exceptionally low run off coefficients as to low rainfall 19 These extensive irrigation systems require a reliable supply of water not the unpredictable flows that characterise the Murray Darling 6 These structures and irrigation implements were ideal when there was a steady flow of water 20 However during the Big Dry as the early 2000s drought came to be known Australian farmers experienced a scarcity unlike ever before The drought was so severe that numerous rivers and streams such as the Murray Darling stopped flowing 20 The Basin contains more than 30 000 wetlands 21 Eleven of these are protected under the Ramsar Convention of Wetlands of International Importance Rivers in the Murray Darling Basin edit nbsp Yarrawonga Weir on the Murray River forms Lake Mulwala 2010 nbsp Darling River at Menindee 2009 nbsp Warrego River at Cunnamulla 2010 nbsp Barwon River at Collarenebri 2008 nbsp Lake Burrendong formed at the confluence of the Macquarie River and Cudgegong River 1995 nbsp Macquarie River at Bathurst 2009 nbsp Siphon irrigation of cotton on the Balonne River near St George 2012 nbsp Maranoa River at Mitchell 2005 nbsp Macintyre River in flood at Goondiwindi 1921 nbsp Taemas Bridge across the Murrumbidgee River 2011 nbsp Goodradigbee River in the valley below the Brindabella Ranges 2005 nbsp Molonglo River at Acton in 1920 prior to the damming of the river to form Lake Burley Griffin nbsp Wakool River near Kyalite 2012 nbsp A footbridge of the Avoca River at Charlton 2005 nbsp Goulburn River at Murchison 2009 nbsp Ovens River at Porepunkah 2007 nbsp Mitta Mitta River downstream from Dartmouth Dam 2007 The rivers listed below comprise the Murray Darling Basin and its direct significant tributaries with elevations of their confluence with the downstream river The tributary with the highest elevation is Swampy Plain River that rises in the Snowy Mountains below Mount Kosciuszko at an elevation of 2 120 metres 6 960 ft and ends merging with the Murray River descending 1 860 metres 6 100 ft The ordering of the Basin from downstream to upstream is Rivers of the Murray Darling Basin Catchment river Elevation atconfluence River mouth States River length Tributary Tributary Tributary Tributary Tributary Tributary m ft km mi Murray River 0 0 Southern Ocean NSW Vic SA 2 375 1 476 Darling River 35 115 Murray NSW 1 472 915 Paroo River 94 308 Darling Qld NSW 1 210 750 Warrego River 98 322 Darling Qld NSW 1 380 860 Langlo River 280 920 Warrego Qld 440 270 Nive River 336 1 102 Warrego Qld 263 163 Culgoa River 109 358 Darling Qld NSW 489 304 Birrie River 115 377 Culgoa Qld 197 122 Barwon River New South Wales 110 360 Darling NSW 700 430 Bokhara River 113 371 Barwon Qld NSW 347 216 Namoi River 130 430 Barwon NSW 708 440 Mooki River 264 866 Namoi NSW 128 80 Peel River New South Wales 286 938 Namoi NSW 210 130 Cockburn River 384 1 260 Peel NSW 34 21 Manilla River 349 1 145 Namoi NSW 138 86 Macdonald River Bendemeer 705 2 313 Namoi NSW 169 105 Cobrabald River 990 3 250 Macdonald NSW 53 33 Gwydir River 144 472 Barwon NSW 488 303 Horton River 270 890 Gwydir NSW 128 80 Moredun Creek 645 2 116 Gwydir NSW 210 130 Rocky River New South Wales 760 2 490 Gwydir NSW 138 86 Mehi River 145 476 Barwon NSW 314 195 Moonie River 149 489 Barwon NSW 542 337 Boomi River 152 499 Barwon NSW Qld 231 144 Macquarie River 154 505 Barwon NSW 960 600 Castlereagh River 121 397 Macquarie NSW 541 336 Talbragar River 258 846 Macquarie NSW 277 172 Coolaburragundy River 271 889 Talbragar NSW 156 97 Little River Dubbo 271 889 Macquarie NSW 122 76 Bell River New South Wales 285 935 Macquarie NSW 146 91 Cudgegong River 342 1 122 Macquarie NSW 250 160 Turon River 406 1 332 Macquarie NSW 117 73 Crudine River 563 1 847 Turon NSW 54 34 Fish River New South Wales 668 2 192 Macquarie NSW 119 74 Campbells River 706 2 316 Fish NSW 82 51 Duckmaloi River 1 010 3 310 Fish NSW 27 17 Weir River Queensland 166 545 Barwon Qld NSW 197 122 Balonne River 171 561 Barwon Qld 479 298 Maranoa River 207 679 Balonne Qld 519 322 Merivale River 401 1 316 Maranoa Qld 205 127 Condamine River 256 840 Balonne Qld 657 408 Macintyre River 224 735 Barwon NSW Qld 319 198 Dumaresq River 227 745 Macintyre NSW 214 133 Macintyre Brook 241 791 Dumaresq Qld 165 103 Beardy River 354 1 161 Dumaresq NSW 90 56 Pike Creek Queensland 360 1 180 Dumaresq Qld 117 73 Mole River New South Wales 363 1 191 Dumaresq Qld 73 45 Deepwater River 601 1 972 Mole NSW 84 52 Bluff River New South Wales 614 2 014 Mole NSW 13 8 1 Severn River Queensland 375 1 230 Dumaresq Qld NSW 90 56 Severn River New South Wales 284 932 Macintyre NSW 52 32 Beardy Waters 884 2 900 Severn NSW NSW 70 43 Bogan River 111 364 Darling NSW 617 383 Little River Parkes 305 1 001 Bogan NSW 319 198 Murrumbidgee River 55 180 Murray NSW ACT 1 488 925 Lachlan River 68 223 Murrumbidgee NSW 1 440 890 Belubula River 262 860 Lachlan NSW 165 103 Boorowa River 301 988 Lachlan NSW 134 83 Abercrombie River 375 1 230 Lachlan NSW 130 81 Isabella River New South Wales 479 1 572 Abercrombie NSW 51 32 Bolong River 589 1 932 Abercrombie NSW 60 37 Tumut River 220 720 Murrumbidgee NSW 182 113 Goobarragandra River 272 892 Tumut NSW 56 35 Doubtful Creek 1 290 4 230 Tumut NSW 15 9 3 Yass River 345 1 132 Murrumbidgee NSW 139 86 Goodradigbee River 345 1 132 Murrumbidgee NSW 105 65 Crookwell River 430 1 410 Murrumbidgee NSW 78 48 Molonglo River 440 1 440 Murrumbidgee NSW ACT 115 71 Jerrabomberra Creek 554 1 818 Molonglo NSW ACT 35 22 Sullivans Creek 556 1 824 Molonglo NSW ACT 13 8 1 Queanbeyan River 567 1 860 Molonglo NSW ACT 104 65 Cotter River 460 1 510 Murrumbidgee ACT 74 46 Paddys River Australian Capital Territory 477 1 565 Cotter ACT 28 17 Tidbinbilla River 618 2 028 Paddys ACT 13 8 1 Gibraltar Creek 647 2 123 Paddys ACT 13 8 1 Gudgenby River 573 1 880 Murrumbidgee ACT 35 22 Naas River 631 2 070 Gudgenby ACT 26 16 Orroral River 842 2 762 Gudgenby ACT 15 9 3 Bredbo River 695 2 280 Murrumbidgee NSW 52 32 Strike a Light River 733 2 405 Bredbo NSW 38 24 Numeralla River 706 2 316 Murrumbidgee NSW 94 58 Big Badja River 735 2 411 Numeralla NSW 32 20 Kybeyan River 745 2 444 Numeralla NSW 36 22 Wakool River 58 190 Murray NSW 363 226 Niemur River 63 207 Wakool NSW 155 96 Edward River an anabranch 61 200 Murray NSW 383 238 Little Murray River Victoria 67 220 Murray Vic 46 29 Loddon River 71 233 Murray Vic 392 244 Avoca River 74 243 Murray Vic 270 170 Little Murray River New South Wales 75 246 Murray NSW 22 14 Goulburn River Victoria 100 330 Murray Vic 654 406 Broken River Victoria 118 387 Goulburn Vic 225 140 Yea River 162 531 Goulburn Vic 122 76 Murrindindi River 186 610 Yea Vic 26 16 Acheron River 190 620 Goulburn Vic 84 52 Little River Cathedral Range 207 679 Acheron Vic 22 14 Steavenson River 264 866 Acheron Vic 20 12 Taggerty River 368 1 207 Steavenson Vic 18 11 Rubicon River 200 660 Goulburn Vic 43 27 Royston River 381 1 250 Rubicon Vic 19 12 Big River Goulburn River Victoria 259 850 Goulburn Vic 62 39 Delatite River 260 850 Goulburn Vic 83 52 Howqua River 265 869 Goulburn Vic 66 41 Jamieson River 294 965 Goulburn Vic 33 21 Campaspe River 123 404 Murray Vic 232 144 Coliban River 183 600 Campaspe Vic 89 55 Little Coliban River 501 1 644 Coliban Vic 12 7 5 Ovens River 125 410 Murray Vic 191 119 King River Victoria 142 466 Ovens Vic 126 78 Buffalo River Victoria 206 676 Ovens Vic 65 40 Dandongadale River 279 915 Buffalo Vic 41 25 Catherine River Victoria 392 1 286 Buffalo Vic 25 16 Buckland River Victoria 274 899 Ovens Vic 38 24 Kiewa River 156 512 Murray Vic NSW 109 68 Mitta Mitta River 180 590 Murray Vic 204 127 Dart River Victoria 452 1 483 Mitta Mitta Vic 29 18 Big River Mitta Mitta River Victoria 655 2 149 Mitta Mitta Vic 52 32 Cobungra River 656 2 152 Mitta Mitta Vic 55 34 Victoria River Victoria 830 2 720 Cobungra Vic 25 16 Tooma River 238 781 Murray NSW 74 46 Swampy Plain River 269 883 Murray NSW Vic 59 37 Geehi River 439 1 440 Swampy Plain Vic 47 29Murray Darling Basin Initiative editBackground edit The Basin affects five states and territory governments which according to the Constitution are responsible for managing water resources The River Murray Commission was established in 1917 1 Under the River Murray Waters Agreement which did not include Queensland though about a quarter of the Basin lays in the state the commission was an advisory body with no authority for enforcement of provisions For a long time the commission was only concerned with water quantity until salinity became a problem 22 This led to minor reforms in 1982 in which water quality became part of the commission s responsibilities 1 However it was soon recognised that a new organisational structure which considered the national perspective was needed for effective management The Murray Darling Basin Agreement was first adopted in 1985 but it wasn t until 1993 that its full legal status was enacted 1 The Agreement led to the creation of a number of new organisations under what is known as the Murray Darling Basin Initiative These included the Murray Darling Basin Ministerial Council and the Murray Darling Basin Commission Murray Darling Basin Plan edit This article may contain an excessive amount of intricate detail that may interest only a particular audience Please help by spinning off or relocating any relevant information and removing excessive detail that may be against Wikipedia s inclusion policy October 2021 Learn how and when to remove this message The Murray Darling Basin Authority MDBA was formed in 2008 to manage the Murray Darling Basin in an integrated and sustainable manner in conjunction with the Basin states The MDBA is responsible for preparing and overseeing a legally enforceable management plan In October 2010 MDBA released a draft Murray Darling Basin Plan MDBP for consultation After a difficult consultation process on 22 November 2012 Tony Burke Minister for Sustainability Environment Water Population and Communities signed the Murray Darling Basin Plan which passed the Australian Parliament s disallowance period on 19 March 2013 Community consultation edit The MDBA s draft Murray Darling Basin Plan titled the Guide to the Proposed Murray Darling Basin Plan was released in October 2010 as the first part of a three stage process to address the problems of the Murray Darling Basin 23 The Plan was in response to the 2000s Australian drought and designed to secure the long term ecological health of the Murray Darling Basin This entailed cutting existing water allocations and tree growth environmental flows 24 The Basin Plan was designed to set environmentally sustainable limits on the quantities of water that may be taken from Basin water resources to set Basin wide environmental water quality and salinity objectives to develop efficient water trading regimes across the Basin to set requirements for state water resource plans and to improve water security for all Basin users 25 It also intends to minimise social and economic impacts whilst achieving the plan s environmental outcomes 26 With the release of the Guide to the Proposed Murray Darling Basin Plan there have been a number of protests and voiced concerns about the plan in rural towns that the MDBA visited to present the plan to consultation meetings 27 More than 5 000 people attended a MDBA meeting in Griffith where Griffith Mayor Mike Neville said the plan would obliterate Murrumbidgee valley communities 28 Other groups also echo this feeling such as the Victorian Farmers Federation 29 and Wine Group Growers Australia 30 Conversely support for the Murray Darling Basin plan has been received by various groups including Australian Conservation Foundation 31 and Environment Victoria 32 New legal advice from Commonwealth government lawyers is changing the plan The Government s interpretation is that the plan must give equal weight to the environmental social and economic impacts of proposed cuts to irrigation Environmentalists and South Australian irrigators at the end of the river in South Australia say that the authority should stick to its original figure 33 In October 2010 a parliamentary inquiry into the economic impacts of the plan was announced 34 In late October 2010 the Water Minister Tony Burke played down the prospect of a High Court challenge to the Murray Darling Basin plan as confusion continued over new legal advice released by the Government In response to community concerns that MDBA had put environmental issues first over social and economic needs Burke released new advice on the requirements of the Water Act Burke stated that the Act does allow for the authority to optimise the needs of all three areas but constitutional lawyer George Williams had cast doubts over the interpretation of the laws stating it could be subject to a legal challenge 35 The MDBA announced in November 2010 that it might be forced to push back the release of its final plan for the river system until early 2012 36 The then MDBA chairman Mike Taylor reassured the public meeting that more work is being done to look at how the proposed cuts would affect regional communities He stated Importantly we want to make sure the social and economic impacts which under any sort of scenario is very significant were fully teased out 37 Taylor resigned as he allegedly believed that the overriding principle should be the environmental outcome which was in conflict with the Gillard Government and following a period of sustained criticism of the Authority and the implementation of the proposed draft Basin plan 38 He was replaced by former New South Wales Planning Minister Craig Knowles 39 40 41 In late May 2012 the revised plan was forwarded to state water ministers 42 It did not alter the recommendation to cut 2 750 gigalitres 2 75 km3 2 230 000 acre ft of water entitlements Following much negotiation between the Commonwealth and State governments and numerous submissions from interested stakeholders and the community the Basin Plan became law in November 2012 and can now be implemented See also edit nbsp Water portal nbsp Australia portal Climate change in Australia Drought in Australia Murray Darling Cap List of drainage basins of Australia List of Darling River distances List of Murray River crossings List of Murray River distances List of Murrumbidgee River distances Murray Basin the geological sedimentary basinReferences edit a b c d e f Pigram John J 2007 Australia s Water Resources From use to management Collingwood Victoria CSIRO Publishing pp 160 162 ISBN 978 0 643 09442 0 Pollino Carmel A Hart Barry T Nolan Martin Byron Neil Marsh Rod 2021 Murray Darling Basin Australia Its Future Management Volume 1 in Ecohydrology from Catchment to Coast Elsevier pp 21 46 ISBN 978 0 12 818152 2 H A Lindsay 1975 Ch 11 Aborigines in the Murray Valley In G V Lawrence and Graeme Kinross Smith ed The Book of the Murray Rigby Ltd ISBN 0 85179 917 5 Australian Government 2015 November 24 Animals of the Murray Darling Basin Retrieved October 19 2020 from www mdba gov au website https www mdba gov au importance Murray Darling basin plants animals animals Proposed Murray Darling Basin Plan PDF Murray Darling Basin Authority August 2012 Archived from the original PDF on 13 November 2012 Retrieved 7 October 2012 a b c d e f Wohl Ellen E 2010 A World of Rivers Environmental Change on Ten of the World s Great Rivers Chicago University of Chicago Press a b c Davies Anne 7 January 2019 Hundreds of thousands of native fish dead in second Murray Darling incident The Guardian Retrieved 17 January 2019 Radford Antoinette 18 March 2023 Menindee Millions of dead fish wash up near Australian town BBC Retrieved 20 March 2023 Housden Tom 20 March 2023 Menindee Australia begins mass fish death clean up BBC Retrieved 20 March 2023 EPA s water testing after Menindee fish kill was flawed and insufficient expert says www theguardian com 18 April 2023 Retrieved 21 April 2023 NSW to investigate Menindee mass fish kill as pollution incident www theguardian com 19 April 2023 Retrieved 21 April 2023 General information about carp biology ecology and impacts New South Wales Department of Primary Industries Retrieved 10 February 2012 Ayers D Mazzer T M and Ellis M V 2004 Herpetofauna of the Darling Basin In The Darling Eds R Breckwoldt R Boden and J Andrew Murray Darling Basin Commission Canberra MacDonald Matthew 2008 Ecology of Phyla canescens Verbenaceae in Australia Thesis University of New England Retrieved 10 September 2021 Prideaux Bruce 2009 River Heritage the Murray Darling River In Prideaux Bruce Cooper Malcolm eds River Tourism Wallingford United Kingdom CAB International p 167 ISBN 978 1 84593 468 2 Retrieved 18 December 2011 a b Brown J A H John Alexander Henstridge Australia s Surface Water Resources ISBN 0 644 02617 0 McMahon T A and Finlayson B L Global Runoff Continental Comparisons of Annual Flows and Peak Discharges pp 86 98 ISBN 3 923381 27 1 Weir Jessica K 2009 Murray River country an ecological dialogue with traditional owners Canberra Aboriginal Studies Press Government politics power and policy in Australia editors Dennis Woodward Andrew Parkin John Summers a b Richter Brian D 2014 Chasing water a guide for moving from scarcity to sustainability Connell Daniel January 2015 Irrigation water markets and sustainability in Australia s Murray Darling Basin Agriculture and Agricultural Science Procedia 4 133 139 doi 10 1016 j aaspro 2015 03 016 Murray Darling river Water quality management 29 September 2015 Retrieved 23 August 2016 Clarke Sarah 8 October 2010 The Murray Darling plan explained ABC News Australian Broadcasting Corporation Archived from the original on 17 April 2011 Joseph Thomsen 12 October 2010 MDBA Chair explains water allocation cuts ABC Goulburn Murray Australian Broadcasting Corporation Retrieved 17 October 2010 Murray Darling Basin Authority Summary of Murrumbidgee Region From the Guide to the proposed Basin Plan PDF Australian Government archived from the original PDF on 10 April 2013 Arup Tom 31 May 2010 Joyce signals fight over plan for Murray Darling Basin The Sydney Morning Herald Fairfax Media Archived from the original on 7 November 2012 Tractor convoy as SA irrigators protest ABC News Australian Broadcasting Corporation 15 October 2010 Archived from the original on 31 October 2010 Griffith irrigators vent anger Weekly Times 20 October 2010 Retrieved 21 October 2010 VFF Declares War Stop the MDBA plundering Archived 17 September 2012 at archive today Federal Government urged not to forget people in Basin Plan Archived 6 July 2011 at the Wayback Machine Media Release 13 October 2010 Cautious support from scientists for the emerging Murray Darling Basin Plan permanent dead link Murray Darling Basin Plan what s it all about Environment Victoria 11 March 2010 archived from the original on 31 October 2012 Om Jason 27 October 2010 SA irrigators back Murray Darling cuts ABC News Australian Broadcasting Corporation Archived from the original on 12 November 2012 Lee Tim 18 October 2010 Murray authority chairman faces uphill battle ABC News Archived from the original on 22 December 2010 Rodgers Emma 28 October 2010 Burke plays down challenge to basin plan ABC News Australian Broadcasting Corporation Archived from the original on 30 October 2010 Binnie Kerrin 2 November 2010 Basin authority flags delay to final plan ABC News Australian Broadcasting Corporation Archived from the original on 4 November 2010 Water cuts treat farmers as second class citizens ABC News Australian Broadcasting Corporation 4 November 2010 Archived from the original on 4 November 2010 Rodgers Emma 7 December 2010 Murray Darling boss resigns ABC News Australian Broadcasting Corporation Archived from the original on 12 November 2012 Coorey Phillip 28 January 2011 Ex NSW minister Craig Knowles to be Murray Darling supremo The Sydney Morning Herald Fairfax Media Archived from the original on 29 October 2016 Coorey Phillip 29 January 2011 A cosy number for a party mate or the right man for the job The Sydney Morning Herald Fairfax Media Archived from the original on 7 November 2012 Retrieved 29 January 2011 Kruger Paula 28 January 2011 Jobs for mate claims dog new Murray Darling chief ABC News Australian Broadcasting Corporation Archived from the original on 5 March 2011 Anna Vidot and rural reporters 28 May 2012 Murray Darling plan delivered to states ABC Rural Australian Broadcasting Corporation Archived from the original on 29 May 2012 Retrieved 29 May 2012 External links editMurray Darling Basin Authority Murray Darling Basin Water Budget Project Murray Darling Freshwater Research Centre River Murray Water Restrictions Murray Outback Guide to the major towns on the Murray and Murray Outback Region Save the Murray lobby group Murray Darling Basin Resources The Basin Plan Guide to the Proposed Basin Plan Guide to the Basin Plan Volumes 1 21 Basin Plan lobby group News Fire Flood and Acid Mud Catalyst Australian Broadcasting Corporation archived from the original on 19 April 2016 Retrieved from https en wikipedia org w index php title Murray Darling basin amp oldid 1216064221, wikipedia, wiki, book, books, library,

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