Validating species sensitivity distributions using salinity tolerance of riverine macroinvertebrates in the southern Murray-Darling Basin (Victoria, Australia)

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dc.contributor.author Nugegoda, Dayanthi en_US
dc.contributor.author Metzeling, L en_US
dc.contributor.author Fields, Ej en_US
dc.contributor.author Kefford, Ben en_US
dc.contributor.editor en_US
dc.date.accessioned 2011-02-07T06:21:41Z
dc.date.available 2011-02-07T06:21:41Z
dc.date.issued 2006 en_US
dc.identifier 2009006152 en_US
dc.identifier.citation Kefford Benjamin et al. 2006, 'Validating species sensitivity distributions using salinity tolerance of riverine macroinvertebrates in the southern Murray-Darling Basin (Victoria, Australia)', Natl Research Council Canada-N R C Research Press, vol. 63, no. 8, pp. 1865-1877. en_US
dc.identifier.issn 0706-652X en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/13436
dc.description.abstract Species sensitivity distributions (SSDs) are commonly used in risk assessment and in setting water quality guidelines, yet their predictions have not been validated against loss of species with increasing pollutant concentrations in nature. We used a rapid toxicity testing method to determine the acute salinity tolerance (72 h LC50 values (concentration of salinity lethal to 50% of individuals)) of 110 macroinvertebrate taxa from the southern Murray-Darling Basin in central Victoria, Australia, and construct an SSD. This SSD was compared with loss of riverine macro invertebrates species from increasing salinity in Victoria. Macroinvertebrate species richness per individual sample, when salinity was < 9.9 mS center dot cm(-1), was invariant of salinity. However, when species richness was calculated across multiple samples above about 0.3-0.5 mS center dot cm(-1), it declined with increasing salinity. This decline was predicted from the SSD after application of a variable safety factor calculated from an exponential or quadratic equation. Our findings confirm that SSDs can predict the loss of freshwater macroinvertebrate species from increases in salinity. This suggests that SSDs may be useful more generally for other aquatic organisms, other stressors, and toxicants. en_US
dc.language en_US
dc.publisher Natl Research Council Canada-N R C Research Press en_US
dc.relation.isbasedon http://dx.doi.org/10.1139/F06-080 en_US
dc.title Validating species sensitivity distributions using salinity tolerance of riverine macroinvertebrates in the southern Murray-Darling Basin (Victoria, Australia) en_US
dc.parent Canadian Journal Of Fisheries And Aquatic Sciences en_US
dc.journal.volume 63 en_US
dc.journal.number 8 en_US
dc.publocation Ottawa en_US
dc.identifier.startpage 1865 en_US
dc.identifier.endpage 1877 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 060200 en_US
dc.personcode 109859 en_US
dc.personcode 034710 en_US
dc.personcode 0000062846 en_US
dc.personcode 0000062842 en_US
dc.percentage 100 en_US
dc.classification.name Ecology en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity ISI:000239655100018 en_US
dc.description.keywords NA en_US
dc.staffid en_US


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