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

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Show simple item record Doyle, CJ Pablo, F Lim, RP Hyne, RV 2009-12-21T02:29:36Z 2003-04
dc.identifier.citation Archives of Environmental Contamination and Toxicology, 2003, 44 (3), pp. 343 - 350
dc.identifier.issn 0090-4341
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.
dc.language eng
dc.relation.isbasedon 10.1007/s00244-002-2003-8
dc.title Assessment of metal toxicity in sediment pore water from Lake Macquarie, Australia
dc.type Journal Article
dc.description.version Published
dc.description.version Published
dc.parent Archives of Environmental Contamination and Toxicology
dc.journal.volume 3
dc.journal.volume 44
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 0602 Ecology
dc.personcode 100467
dc.personcode 870336
dc.personcode 103761
dc.percentage 100 en_US Ecology en_US
dc.classification.type FOR-08 en_US
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
utslib.copyright.status Closed Access 2015-04-15 12:17:09.805752+10
pubs.consider-herdc true
utslib.collection.history School of the Environment (ID: 344)
utslib.collection.history Closed (ID: 3)

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