Academic literature on the topic 'Coorong lagoon'

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Journal articles on the topic "Coorong lagoon"

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Hossain, M. A., Q. Ye, S. C. Leterme, and J. G. Qin. "Spatial and temporal changes of three prey-fish assemblage structure in a hypersaline lagoon: the Coorong, South Australia." Marine and Freshwater Research 68, no. 2 (2017): 282. http://dx.doi.org/10.1071/mf15212.

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Estuaries and coastal lagoons are the dynamic interface among marine, freshwater and terrestrial environments. The Coorong, an Australian wetland, has been ecologically degraded by protracted drought and subsequent low freshwater flow, and transformed into a hyper-saline lagoon system. The Coorong consists of the North and South lagoons and connects to the Southern Ocean through a narrow channel at Murray Estuary. The present study investigated spatiotemporal variation of three primary prey-fish assemblage in the Murray Estuary and Coorong. Spatial change in prey-fish assemblage was detected, but temporal variation was not obvious. Prey-fish assemblage was dominated by greater abundance of small-mouth hardyhead (Atherinosoma microstoma) in the South Lagoon. There was low abundance of sandy sprat (Hyperlophus vittatus) and Tamar goby (Afurcagobius tamarensis) in North Lagoon, and complete absence of both species in South Lagoon. The spatial variation in the distribution of prey-fish assemblage was attributed to elevated salinity gradients (Murray Estuary: 2–30; North Lagoon: 11–75; and South Lagoon: 40–85). The change of prey-fish assemblage is mainly driven by the salinity variation in the Murray Estuary and Coorong. The present study has improved our understanding on the dynamics of small-bodied prey-fish assemblage and key environmental factors regulating fish distribution in the Murray Estuary and Coorong.
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L Groome, Roger. "At the End of the River: The Coorong and Lower Lakes." Pacific Conservation Biology 16, no. 4 (2010): 290. http://dx.doi.org/10.1071/pc110290.

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This is a marvelous text (29 cm X 23 cm, 247 pp) on the Coorong and other waters at the mouth of the Murray River in South Australia, their social and environmental values, and the problems which beset them. The Coorong itself is an unusual 110 kilometers long but narrow lagoon, running southeast along the coast from the Murray mouth. Authored principally by Associate Professor David Paton of the University of Adelaide, the text also contains vignettes by 22 other contributors. Its ten chapter are illustrated by 150 colour photographs (no less than 35 photographers contributed) and 35 are so delightful sketches. Almost 300 references are included, plus 50 tables and diagrams.
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Palinska, Katarzyna A., Joachim Scholz, Katja Sterflinger, Gisela Gerdes, and Yvonne Bone. "Microbial mats associated with bryozoans (Coorong Lagoon, South Australia)." Facies 41, no. 1 (December 1999): 1–14. http://dx.doi.org/10.1007/bf02537456.

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Bone, Y., and R. E. Wass. "Sub‐Recent bryozoan‐serpulid buildups in the Coorong lagoon, South Australia." Australian Journal of Earth Sciences 37, no. 2 (June 1, 1990): 207–14. http://dx.doi.org/10.1080/08120099008727921.

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Lower, C. S., J. H. Cann, and D. Haynes. "Microfossil evidence for salinity events in the Holocene Coorong Lagoon, South Australia." Australian Journal of Earth Sciences 60, no. 5 (July 2013): 573–87. http://dx.doi.org/10.1080/08120099.2013.823112.

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Cann, J. H., and C. V. Murray-Wallace. "Interstadial age (MIS5c) beach-dune barrier deposits in the Coorong Lagoon, South Australia." Australian Journal of Earth Sciences 59, no. 8 (December 2012): 1127–34. http://dx.doi.org/10.1080/08120099.2012.727869.

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Kingsford, Richard T., Keith F. Walker, Rebecca E. Lester, William J. Young, Peter G. Fairweather, Jesmond Sammut, and Michael C. Geddes. "A Ramsar wetland in crisis - the Coorong, Lower Lakes and Murray Mouth, Australia." Marine and Freshwater Research 62, no. 3 (2011): 255. http://dx.doi.org/10.1071/mf09315.

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The state of global freshwater ecosystems is increasingly parlous with water resource development degrading high-conservation wetlands. Rehabilitation is challenging because necessary increases in environmental flows have concomitant social impacts, complicated because many rivers flow between jurisdictions or countries. Australia’s Murray–Darling Basin is a large river basin with such problems encapsulated in the crisis of its Ramsar-listed terminal wetland, the Coorong, Lower Lakes and Murray Mouth. Prolonged drought and upstream diversion of water dropped water levels in the Lakes below sea level (2009–2010), exposing hazardous acid sulfate soils. Salinities increased dramatically (e.g. South Lagoon of Coorong >200 g L–1, cf. modelled natural 80 g L–1), reducing populations of waterbirds, fish, macroinvertebrates and littoral plants. Calcareous masses of estuarine tubeworms (Ficopomatus enigmaticus) killed freshwater turtles (Chelidae) and other fauna. Management primarily focussed on treating symptoms (e.g. acidification), rather than reduced flows, at considerable expense (>AU$2 billion). We modelled a scenario that increased annual flows during low-flow periods from current levels up to one-third of what the natural flow would have been, potentially delivering substantial environmental benefits and avoiding future crises. Realisation of this outcome depends on increasing environmental flows and implementing sophisticated river management during dry periods, both highly contentious options.
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Bone, Y. "Geological note: Population explosion of the bryozoanmembranipora aciculatain the Coorong Lagoon in late 1989." Australian Journal of Earth Sciences 38, no. 1 (February 1991): 121–23. http://dx.doi.org/10.1080/08120099108727960.

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Cann, John H., Robert P. Bourman, and Elizabeth J. Barnett. "Holocene Foraminifera as Indicators of Relative Estuarine-Lagoonal and Oceanic Influences in Estuarine Sediments of the River Murray, South Australia." Quaternary Research 53, no. 3 (May 2000): 378–91. http://dx.doi.org/10.1006/qres.2000.2129.

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AbstractIn southeastern South Australia, the River Murray debouches through a coastal barrier separating euryhaline estuarine-lagoonal waters from the Southern Ocean. Depending upon the relative freshwater outflow of the river and ingress of the ocean, water salinity varies greatly within the lower estuary. Ammonia beccarii and Elphidium articulatum are euryhaline species of foraminifera that characterize the estuary and back-barrier Coorong Lagoon. The inner-shelf marine environment hosts an assemblage in which Discorbis dimidiatus, E. crispum, E. macelliforme, and various cibicidid species predominate. In cored sediments recovered from the shallow lower estuary, the relative abundance of A. beccarii + E. articulatum was compared with that of D. dimidiatus + E. crispum + E. macelliforme + other species. These data, and AMS radiocarbon ages determined for foraminifera and ostracods, provide evidence of a change from maximum oceanic influence (5255 ± 60 yr B.P.) to maximum estuarine influence (3605 ± 70 yr B.P.). Over this same time interval, sea level fell relatively by about 2 m. However, the event was also contemporaneous with falling water levels in several Victorian lakes, and it is thus attributed to onset of climatic aridity. Reduced precipitation in the River Murray catchment and reduced freshwater outflow enhanced development of the flood-tide delta and constriction of the mouth.
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Pollet, Thomas, Mathilde Schapira, Marie-Jeanne Buscot, Sophie C. Leterme, James G. Mitchell, and Laurent Seuront. "Prokaryotic aminopeptidase activity along a continuous salinity gradient in a hypersaline coastal lagoon (the Coorong, South Australia)." Saline Systems 6, no. 1 (2010): 5. http://dx.doi.org/10.1186/1746-1448-6-5.

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Dissertations / Theses on the topic "Coorong lagoon"

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Tulipani, Svenja. "Novel biomarker and stable isotopic approaches for palaeoenvironmental reconstruction of saline and stratified ecosystems : the modern Coorong Lagoon and Devonian reefs of the Canning Basin." Thesis, Curtin University, 2013. http://hdl.handle.net/20.500.11937/147.

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An integrated elemental, biomarker and stable isotope approach was used to explore environmental and ecological changes, particularly of salinity and water-column stratification, in (i) a modern estuarine ecosystem recently impacted by human water management practices and drought; and (ii) a marine palaeoenvironment associated with the Late Devonian extinctions. A pyrolysis method was developed to investigate methyltrimethyltridecylchroman (MTTC) sources and a proxy for reconstruction of freshwater incursion into marine palaeoenvironments based on these biomarkers was introduced.
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Chamberlayne, B. K. "Late Holocene seasonal and multicentennial hydroclimate variability in the Coorong lagoon, South Australia: evidence from stable isotopes and trace element profiles of bivalve molluscs." Thesis, 2015. http://hdl.handle.net/2440/117977.

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This study investigates the stable isotope and trace elemental geochemistry of the bivalve Arthritica helmsi with the aim to investigate its uses as a palaeoclimate archive. Firstly, stable isotopes and trace elements were measured on composite shell samples to create a long-term record of climate variability throughout the past 2500 years. Secondly, the seasonal variations within these multicentennial records was analysed through high-resolution trace elemental analyses on individual shells in addition to high replicate stable isotope analyses. These results show variation in the hydroclimate of the Southern Coorong Lagoon in response to freshwater flow and evaporation. A period of reduced moisture from 2200-1800 cal B.P and periods indicating more fresh conditions from 2500-2250 cal B.P and 1800-1300 cal B.P are in agreement with several other regional records suggesting a coherent regional climate signal. Increases in seasonality coincide with dry climates and indicate that summer climate variability is the main influence on Coorong palaeohydrology. A. helmsi exhibits significant potential as a palaeoclimate tracer, subject to further research into its contemporary biology and geochemistry.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2015
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Liebelt, S. R. "Testing the redox coupling between chromium and nitrogen isotopes in modern and ancient redox-stratified depositional systems: the Coorong Lagoon and the Greater McArthur Basin." Thesis, 2019. https://hdl.handle.net/2440/136963.

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The history of Earth’s atmospheric oxidation following the Great Oxidation Event (GOE) is widely debated and currently poorly constrained. This uncertainty is largely because the use of different geochemical proxies provides a broad range of possible palaeo-redox conditions during the mid-Proterozoic. Such proxies include nitrogen (δ15N) and chromium (δ53Cr) isotopes, which are the focus of this study. These redox-sensitive proxies have recently demonstrated coupled behaviour in both modern seawaters and recent marine sediments, suggesting isotopic fractionation of Cr could result from biologically mediated redox cycling of N. This concept is opposed to Cr isotope fractionation being purely representative of oxidative weathering on continents, thus challenging the reliability of the δ53Cr proxy as a direct tracer for past atmospheric O2 levels. The aim of this study is to test the purported redox coupling of the δ53Cr and δ15N proxies in two redox-stratified depositional systems, specifically investigating (i) modern waters and organic matter from the Coorong Lagoon of South Australia, and (ii) organic-rich shales from the greater McArthur Basin in the Northern Territory (including the Velkerri, Mainoru, Barney Creek and Fraynes Formations). These marine settings display notable redox gradients, allowing insight into the isotopic behaviour of N and Cr through a variety of conditions. Contrary to published data, this study revealed no positive co-variance between δ53Cr and δ15N records. Rather, δ15N changes in both waters and shales are interpreted to largely result from pH-driven volatilisation of NH3, while δ53Cr variations in shales exhibit a systematic temporal increase. This increase likely reflects progressive basin oxygenation, linked to gradually increasing atmospheric O2 during the mid-Proterozoic (i.e. from 1.64 to 1.31 Ga). Thus, the validity of δ53Cr values in marine archives as a palaeo-redox proxy are supported in this instance, with no direct evidence for biologically driven redox cycling of Cr coupled to local N cycling.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2019
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Chamberlayne, Briony Kate. "Oxygen isotope and elemental ratios in waters and bivalves as tracers of hydrological change in the modern and past waters of the Coorong Lagoons, South Australia." Thesis, 2021. https://hdl.handle.net/2440/134558.

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As European land clearance and the installation of engineering controls of water flow (such as locks and barrages) have altered many estuarine ecosystems from their natural state, the range of natural variability of hydrological conditions is often poorly understood. As the instrumental record of climate and environmental monitoring in Australia is short (approximately 120 years), palaeoenvironmental archives inform our understanding of past conditions and can be useful in informing management and conservation efforts in venerable hydrological ecosystems. The geochemistry of bivalve shells preserved in sediments provides one possible archive of past hydrological conditions, though modern calibration studies are necessary prior to palaeoenvironmental applications. This thesis investigates the controls on the composition of trace elements (Sr, Mg and Ba) and stable oxygen isotope ratios (δ18O) in the waters of the Coorong Lagoons, South Australia, alongside the incorporation of these elements and stable isotope ratios into shells of the bivalve Arthritica helmsi. The findings of these studies of modern populations were then applied to shells from the sediments of the Coorong South Lagoon to reconstruct hydroclimate variability for the past 1750 years. The trace elemental ratios Mg/Ca, Sr/Ca and Ba/Ca in waters of the Coorong Lagoons were significantly correlated to salinity. In particular, the relationship between Mg/Ca was found to be consistent across different hydrological regimes and could therefore be a target as a salinity proxy in carbonate archives. However, the partitioning of trace elemental ratios into A. helmsi carbonate was not found to correlate with the temperature, salinity, pH, or elemental concentrations of water, indicating that biological effects likely control the incorporation of elements this species. The δ18O of contemporary waters was mostly controlled by evaporation, though water mixing also had an influence. Oxygen isotope ratios in A. helmsi were significantly related to both the temperature and δ18O of waters resulting in the development of a temperature-dependent fractionation equation. A δ18O record spanning 1750 years was developed from shells from sediments of the Coorong South Lagoon. This record indicates that the Coorong South Lagoon has been a highly evaporated closed system for at least the past 1750 years and that the marine dominated modern North Lagoon is not an analogue for past conditions in the South Lagoon. Furthermore multi-decadal periods of high and low precipitation/evaporation balance indicated by the δ18O record are consistent with regional hydroclimate reconstructions suggesting a common driver for hydroclimate in southeastern Australia. The outcomes of this thesis are a significant contribution to the knowledge of bivalve geochemistry as a proxy for palaeoenvironmental change, as well as past hydroclimate in the Coorong South Lagoon and surrounding region, with potential implications for modern hydrological management.
Thesis (Ph.D.) -- University of Adelaide, School of Physical Sciences, 2021
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Books on the topic "Coorong lagoon"

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Paton, D. C. At the end of the river: The Coorong and lower lakes. Hindmarsh, S. Aust: ATF Press, 2010.

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Paton, D. C. At the end of the river: The Coorong and lower lakes. Hindmarsh, S. Aust: ATF Press, 2010.

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Book chapters on the topic "Coorong lagoon"

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Haynes, Deborah, John Tibby, Jennie Fluin, and Rachael Skinner. "Palaeolimnology of the Lower Lakes and Coorong Lagoon." In Natural History of the Coorong, Lower Lakes, and Murray Mouth region (Yarluwar-Ruwe). Royal Society of South Australia. University of Adelaide Press, 2018. http://dx.doi.org/10.20851/natural-history-cllmm-2.4.

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Dittmann, Sabine, Alec Rolston, and Ryan Baring. "Estuarine and Lagoon Macro-invertebrates — Patterns and Processes." In Natural History of the Coorong, Lower Lakes, and Murray Mouth region (Yarluwar-Ruwe). Royal Society of South Australia. University of Adelaide Press, 2018. http://dx.doi.org/10.20851/natural-history-cllmm-3.4.

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"The Coorong Lagoons:." In At the End of the River, 79–107. ATF Press, 2010. http://dx.doi.org/10.2307/j.ctt163t92x.11.

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"The Coorong Lagoons:." In At the End of the River, 109–25. ATF Press, 2010. http://dx.doi.org/10.2307/j.ctt163t92x.12.

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"The Coorong Lagoons:." In At the End of the River, 127–45. ATF Press, 2010. http://dx.doi.org/10.2307/j.ctt163t92x.13.

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"The Coorong Lagoons:." In At the End of the River, 147–83. ATF Press, 2010. http://dx.doi.org/10.2307/j.ctt163t92x.14.

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Conference papers on the topic "Coorong lagoon"

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"Integrated modelling of water delivery options for the Coorong South Lagoon." In 19th International Congress on Modelling and Simulation. Modelling and Simulation Society of Australia and New Zealand (MSSANZ), Inc., 2011. http://dx.doi.org/10.36334/modsim.2011.i10.montazeri.

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Warner, Abbey, Allen Gontz, Patrick A. Hesp, and Graziela Miot da Silva. "BEACHES, DUNES AND BLOWOUTS – USING GPR TO RELATE COASTAL FEATURES AND CLIMATES, COORONG LAGOON, SOUTH AUSTRALIA." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-319858.

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