Assessment of metal toxicity in sediment pore water from Lake Macquarie, Australia

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Show simple item record Doyle, Christopher en_US Pablo, Fleurdelis en_US Lim, Richard en_US Hyne, Ross en_US 2009-12-21T02:29:36Z 2009-12-21T02:29:36Z 2003 en_US
dc.identifier 2003000305 en_US
dc.identifier.citation Doyle Christopher et al. 2003, 'Assessment of metal toxicity in sediment pore water from Lake Macquarie, Australia', Springer-verlag, vol. 44, no. 3, pp. 343-350. en_US
dc.identifier.issn 0090-4341 en_US
dc.identifier.other C1 en_US
dc.description.abstract Recent investigations into the level of heavy metal enrichment in the sediments of Lake Macquarie have indicated that significant contamination has occurred over the past 100 years, with elevated levels of lead, zinc, cadmium, copper, and selenium being observed in most parts of the lake. Pore water extracted from sediments showing the greatest contamination by these metals exhibited toxicity to the larval development of the sea urchin Heliocidaris tuberculata. However, an analysis of pore water metal concentrations revealed that the concentrations of these metals were too low to cause toxicity. Rather, pore water toxicity was highly correlated with manganese for the majority of sites sampled; subsequent spiking experiments confirmed manganese as a cause of toxicity. Current levels of manganese in the sediments of Lake Macquarie have arisen from natural sources and are not the result of anthropogenic activities. These results reiterate the importance of identifying the causes of toxicity in assessments of sediment contamination, particularly when testing sediment pore waters using sensitive early life stages. en_US
dc.publisher Springer-verlag en_US
dc.relation.isbasedon en_US
dc.relation.isbasedon en_US
dc.title Assessment of metal toxicity in sediment pore water from Lake Macquarie, Australia en_US
dc.parent Archives Of Environmental Contamination And Toxicology en_US
dc.journal.volume 44 en_US
dc.journal.number 3 en_US
dc.publocation New York, USA en_US
dc.identifier.startpage 343 en_US
dc.identifier.endpage 350 en_US Dept of Environmental Biology en_US
dc.conference Verified OK en_US
dc.for 060200 en_US
dc.personcode 0000020935 en_US
dc.personcode 103761 en_US
dc.personcode 870336 en_US
dc.personcode 100467 en_US
dc.percentage 100 en_US Ecology en_US
dc.classification.type FOR-08 en_US
dc.description.keywords Ph-dependent Toxicity; New-south-wales; Aquatic Organisms; Quality; Marine; Identification; Biota; Bay en_US
dc.staffid 100467 en_US

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