Selenium in sediment, pore water and benthic infauna of Lake Macquarie, New South Wales, Australia Peters, G en_US Maher, WA en_US Krikowa, F en_US Roach, AC en_US Jeswani, HK en_US Barford, JP en_US Gomes, VG en_US Reible, DD en_US 2021-11-25T13:33:11Z 2021-11-25T13:33:11Z 1999 en_US
dc.description.abstract Measurements of selenium in sediments and benthic infauna of Lake Macquarie, an estuary on the east coast of Australia, indicate that sediments are a significant source of selenium in the lake's food web. Analysis of surficial sediment samples indicated higher selenium con- concentrations near what are believed to be the main industrial sources of selenium to the lake: a smelter and a power station. Sediment cores taken from sediments in Mannering Bay, near a power station at Vales Point, contained an average of 12 times more selenium in surficial sections than sediment cores from Nord's Wharf, a part of the lake remote from direct inputs of selenium. The highest selenium concentration found in Mannering Bay sediments (17.2 mg/g) was 69 times the apparent background concentration at Nord's Wharf (0.25 mg/g). Pore water concentrations in Mannering Bay were also high, up to 5 mg/l compared to those at Nord's Wharf which were below detection limits (0.2 mg/l). Selenium concentrations in muscle tissues of three benthic-feeding fish species (Mugil cephalus, Platycephalus fuscus, Acanthopagrus australis) were significantly correlated ( p < 0:05) with surficial sediment selenium concentra- tion. Selenium concentrations in polychaetes and molluscs of Mannering Bay were up to 58 times higher than those from Nord's Wharf. Two benthic organisms, the eunicid polychaete Marphysa sanguinea and the bivalve mollusc Spisula trigonella, were maintained at different densities in selenium-spiked sediments. Both animals accumulated selenium from the spiked sediment, confirming that bioaccumulation from contaminated sediments occurs. Collectively, these data suggest that benthic food webs are important sources of selenium to the fish of Lake Macquarie. en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title Selenium in sediment, pore water and benthic infauna of Lake Macquarie, New South Wales, Australia en_US
dc.type Journal Article en
dcterms.accessRights open access
dspace.entity.type Publication en_US
unsw.description.publisherStatement Journal homepage: en_US
unsw.identifier.doiPublisher en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofissue 5 en_US
unsw.relation.ispartofjournal Marine Environmental Research en_US
unsw.relation.ispartofpagefrompageto 491-508 en_US
unsw.relation.ispartofvolume 47 en_US
unsw.relation.originalPublicationAffiliation Peters, G, Civil & Environmental Engineering, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Maher, WA en_US
unsw.relation.originalPublicationAffiliation Krikowa, F en_US
unsw.relation.originalPublicationAffiliation Roach, AC en_US
unsw.relation.originalPublicationAffiliation Jeswani, HK en_US
unsw.relation.originalPublicationAffiliation Barford, JP en_US
unsw.relation.originalPublicationAffiliation Gomes, VG en_US
unsw.relation.originalPublicationAffiliation Reible, DD en_US School of Civil and Environmental Engineering *
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