A rapid amphipod reproduction test for sediment quality assessment: In situ bioassays do not replicate laboratory bioassays

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dc.contributor.author Mann, RM
dc.contributor.author Hyne, RV
dc.contributor.author Simandjuntak, DL
dc.contributor.author Simpson, SL
dc.date.accessioned 2011-02-07T06:19:06Z
dc.date.issued 2010-11
dc.identifier.citation Environmental Toxicology and Chemistry, 2010, 29 (11), pp. 2566 - 2574
dc.identifier.issn 0730-7268
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/13140
dc.description.abstract An underlying assumption of laboratory-based toxicity tests is that the sensitivity and exposure of organisms in the laboratory is comparable to that in the field. We sought to make a comparison between field-based and laboratory-based sediment toxicity tests using a recently developed rapid amphipod reproduction test that encompasses gametogenesis, fertilization, and embryo development before hatching. The test species, Melita plumulosa, is an epibenthic, detritivorous amphipod native to Eastern Australia. Test sediments were sourced from Lake Macquarie, a large saltwater lagoon located 100 km north of Sydney (New South Wales, Australia) that has received heavy-metal pollution over many decades, primarily from a Pb/Zn smelter but also from collieries, coal-fired power stations, and urban areas. This has led to a north-south trace-metal concentration gradient, including Pb, Zn, Cd and Cu, in the sediments of Lake Macquarie. Sediments from these northern bays were demonstrated to reduce amphipod fecundity in laboratory-based tests. For the current study, the amphipod reproduction test has been modified for use in situ. In situ test chambers were deployed at the mouth of Cockle Creek, Lake Macquarie. Sediments that were demonstrated to reduce fecundity of M. plumulosa in the laboratory reproduction test were not similarly toxic when amphipods were exposed to the same sediments in situ. Factors related to the regular tidal renewal of overlying water likely altered exposure profiles in situ, including the provision of additional or alternative nutrition that obviated the need for amphipods to interact with the contaminated sediments, and a washout effect that prevented the accretion of dissolved zinc in the overlying water. Environ. Environ. Toxicol. Chem. 2010;29:2566-2574. © 2010 SETAC Copyright © 2010 SETAC.
dc.language eng
dc.relation.isbasedon 10.1002/etc.306
dc.title A rapid amphipod reproduction test for sediment quality assessment: In situ bioassays do not replicate laboratory bioassays
dc.type Journal Article
dc.parent Environmental Toxicology and Chemistry
dc.journal.volume 11
dc.journal.volume 29
dc.journal.number 11 en_US
dc.publocation Pensacola en_US
dc.identifier.startpage 2566 en_US
dc.identifier.endpage 2574 en_US
dc.cauo.name SCI.Environmental Sciences en_US
dc.conference Verified OK en_US
dc.for 0399 Other Chemical Sciences
dc.personcode 100467
dc.personcode 998973
dc.percentage 100 en_US
dc.classification.name Other Chemical Sciences 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:000283639500023 en_US
dc.description.keywords Dietary exposure
dc.description.keywords Fecundity
dc.description.keywords Melita plumulosa
dc.description.keywords Metal toxicity
dc.description.keywords Sediment bioassay
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
utslib.copyright.date 2015-04-15 12:17:09.805752+10
pubs.consider-herdc true
utslib.collection.history Closed (ID: 3)
utslib.collection.history Uncategorised (ID: 363)

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