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dc.contributor.authorKefford, Ben J
dc.contributor.authorZalizniak, Liliana
dc.contributor.authorDunlop, Jason E
dc.contributor.authorNugegoda, Dayanthi
dc.contributor.authorChoy, Satish C
dc.date.accessioned2017-05-03T14:53:10Z
dc.date.available2017-05-03T14:53:10Z
dc.date.issued2010
dc.date.modified2011-03-29T06:54:07Z
dc.identifier.issn0269-7491
dc.identifier.doi10.1016/j.envpol.2009.08.008
dc.identifier.urihttp://hdl.handle.net/10072/37828
dc.description.abstractThe effects of suspended and deposited sediments on the macroinvertebrates are well documented in upland streams but not in slower flowing lowland rivers. Using species found in lowland lotic environments, we experimentally evaluate mechanisms for sediments to affect macroinvertebrates, and in one experiment whether salinity alters the effect of suspended sediments. Suspended kaolin clay reduced feeding of Ischnura heterosticta (Odonata: Coenagrionidae) at high turbidity (1000-1500 NTU) but had no effects on feeding of Hemianax papuensis (Odonata: Aeshnidae) and Micronecta australiensis (Hemiptera: Corixidae). In freshwater (0.1 mS/cm), survival of Ischnura aurora was poor in clear water, but improved with suspended kaolin. Growth and feeding of I. aurora were unaffected by suspended sediments and salinity. Burial (1-5 mm) of eggs with kaolin or sand reduced hatching in Physa acuta (Gastropoda: Physidae), Gyraulus tasmanica (Gastropoda: Planorbidae) and Chironomus cloacalis (Diptera: Chironomidae). Settling sediments may pose greater risk to lowland lotic invertebrates than suspended sediments. Sediment deposition may be more directly detrimental to macroinvertebrates of lowland rivers than suspended sediments.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoen_AU
dc.publisherElsevier
dc.publisher.placeUnited Kingdom
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom543
dc.relation.ispartofpageto550
dc.relation.ispartofissue2
dc.relation.ispartofjournalEnvironmental Pollution
dc.relation.ispartofvolume158
dc.rights.retentionY
dc.subject.fieldofresearchEnvironmental Sciences not elsewhere classified
dc.subject.fieldofresearchcode059999
dc.titleHow are macroinvertebrates of slow flowing lotic systems directly affected by suspended and deposited sediments?
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.date.issued2010
gro.hasfulltextNo Full Text
gro.griffith.authorDunlop, Jason


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