Development of a technique for quarantining Great Artesian Basin springs from colonisation by the invasive fish Eastern Gambusia (Gambusia holbrooki)

2015 ◽  
Vol 16 (3) ◽  
pp. 229-232 ◽  
Author(s):  
Adam Kerezsy
Keyword(s):  
Gambusia Holbrooki ◽  
Invasive Fish ◽  
Artesian Basin ◽  
Great Artesian Basin

Conservation of the endangered red-finned blue-eye, Scaturiginichthys vermeilipinnis, and control of alien eastern gambusia, Gambusia holbrooki, in a spring wetland complex

2013 ◽  
Vol 64 (9) ◽  
pp. 851 ◽  
Author(s):  
Adam Kerezsy ◽  
Rod Fensham
Keyword(s):  
Aquatic Invertebrates ◽  
Captive Breeding ◽  
Small Populations ◽  
Gambusia Holbrooki ◽  
Species Extinction ◽  
Artesian Basin ◽  
Great Artesian Basin ◽  
Wetland Complex ◽  
And Control

The red-finned blue-eye is the only pseudomugilid fish known from inland Australia and it is found only within an isolated cluster of Great Artesian Basin springs on Edgbaston Reserve in central-western Queensland. Surveys conducted in early 2009 revealed that red-finned blue-eye was present in four individual springs and that invasion of the spring complex by alien eastern gambusia was the most likely factor contributing to local extirpations. A three-year project commenced in the same year, with the twin aims of investigating methods for removing gambusia from springs and relocating small populations of red-finned blue-eye to fish-free springs. Gambusia removal with rotenone has been successful in a trial spring at Edgbaston and aquatic invertebrates have not been adversely affected. From a total of seven relocation events conducted in the same period, red-finned blue-eye populations have persisted in three. The results indicate that gambusia removal and red-finned blue-eye relocation are both suitable methods for red-finned blue-eye conservation, and as the fish is both endangered and declining, these methods and other strategies such as captive breeding should be implemented to prevent species extinction.

scholarly journals Enhancing geological and hydrogeological understanding of the Precipice Sandstone aquifer of the Surat Basin, Great Artesian Basin, Australia, through model inversion of managed aquifer recharge datasets

2019 ◽  
Vol 28 (1) ◽  
pp. 175-192
Author(s):  
Phil Hayes ◽  
Chris Nicol ◽  
Andrew D. La Croix ◽  
Julie Pearce ◽  
Sebastian Gonzalez ◽  
...  
Keyword(s):  
Oil And Gas ◽  
Groundwater Resources ◽  
Regional Scale ◽  
Managed Aquifer Recharge ◽  
Gas Production ◽  
Aquifer Recharge ◽  
Model Inversion ◽  
Artesian Basin ◽  
Geological Interpretation ◽  
Great Artesian Basin

AbstractThe Precipice Sandstone is a major Great Artesian Basin aquifer in the Surat Basin, Queensland, Australia, which is used for water supply and production of oil and gas. This report describes use of observed groundwater pressure responses to managed aquifer recharge (MAR) at a regional scale to test recent geological descriptions of Precipice Sandstone extent, and to inform its hydrogeological conceptualisation. Since 2015, two MAR schemes have injected over 20 GL of treated water from coal seam gas production into the Precipice Sandstone, with pressure responses rapidly propagating over 100 km, indicating high aquifer diffusivity. Groundwater modelling of injection and inversion of pressure signals using PEST software shows the spatial variability of aquifer properties, and indicates that basin in-situ stresses and faulting exert control on permeability. Extremely high permeability, up to 200 m/day, occurs in heavily fractured regions with a dual-porosity flow regime. The broader-scale estimates of permeability approach an order of magnitude higher than previous studies, which has implications for the management of water resources in the Precipice Sandstone. Results also show the Precipice Sandstone to have broadly isotropic permeability. The results also support a recent geological interpretation of the Precipice Sandstone as having more limited lateral extent than initially considered. The study shows the effective use of MAR injection data to improve geological and hydrogeological understanding through groundwater model inversion. It also demonstrates the utility of combining hydrogeological and reservoir-engineer datasets in areas explored and developed for both groundwater resources and oil and gas resources.

Hydrochemical variations of groundwater and spring discharge of the western Great Artesian Basin, Australia: implications for regional groundwater flow

2019 ◽  
Vol 28 (1) ◽  
pp. 263-278 ◽  
Author(s):  
Stacey C. Priestley ◽  
Paul Shand ◽  
Andrew J. Love ◽  
Laura J. Crossey ◽  
Karl E. Karlstrom ◽  
...  
Keyword(s):  
Groundwater Flow ◽  
Spring Discharge ◽  
Artesian Basin ◽  
Great Artesian Basin ◽  
Regional Groundwater

scholarly journals Geochemistry and Travertine Dating Provide New Insights into the Hydrogeology of the Great Artesian Basin, South Australia

2013 ◽  
Vol 7 ◽  
pp. 521-524 ◽  
Author(s):  
A.J. Love ◽  
P. Shand ◽  
K. Karlstrom ◽  
L. Crossey ◽  
P. Rousseau-Gueutin ◽  
...  
Keyword(s):  
South Australia ◽  
Artesian Basin ◽  
Great Artesian Basin
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