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dc.contributor.authorSheldon, Fran
dc.contributor.authorFellows, Christine S
dc.date.accessioned2017-05-03T12:20:49Z
dc.date.available2017-05-03T12:20:49Z
dc.date.issued2010
dc.date.modified2010-10-07T04:08:31Z
dc.identifier.issn1323-1650
dc.identifier.doi10.1071/MF09289
dc.identifier.urihttp://hdl.handle.net/10072/34432
dc.description.abstractWater quality, along with hydrology, plays an important role in the spatial and temporal dynamics of a range of ecological patterns and processes in large rivers and is also often a key component of river health assessments. Geology and land use are significant drivers of water quality during flow periods while during periods of no-flow, local-scale factors such as evaporation, groundwater influence and the concentration and precipitation of compounds are important. This study explored the water quality changes in two Australian dryland rivers, the Cooper Creek (Lake Eyre Basin) and the Warrego River (Murray-Darling Basin), across different hydrological phases over everal years. Water quality varied both spatially and temporally; the greatest spatial variability occurred during the no-flow phase, with temporal changes driven by flow. Concentrations of major anions and cations also varied spatially and temporally, with an overall cation dominance of calcium and magnesium and an anion dominance of bicarbonate. This bicarbonate dominance contrasts with previous data from inland lentic systems where sodium chloride was found to dominate. Such extreme spatial and temporal variability hampers successful derivation of water quality guidelines for these variable rivers and suggests such guidelines would need to be developed with respect to 'flow phase'.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent309480 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherCSIRO Publishing
dc.publisher.placeAustralia
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom864
dc.relation.ispartofpageto874
dc.relation.ispartofissue8
dc.relation.ispartofjournalMarine & Freshwater Research
dc.relation.ispartofvolume61
dc.rights.retentionY
dc.subject.fieldofresearchFreshwater ecology
dc.subject.fieldofresearchcode310304
dc.titleWater quality in two Australian dryland rivers: spatial and temporal variability and the role of flow
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2010 CSIRO. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2010
gro.hasfulltextFull Text
gro.griffith.authorSheldon, Fran


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