Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/8448
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dc.contributor.authorReid, Michaelen
dc.contributor.authorThoms, Martinen
local.source.editorEditor(s): John S Rowan, Robert W Duck and Alan Werrittyen
dc.date.accessioned2011-09-07T09:38:00Z-
dc.date.issued2006-
dc.identifier.citationSediment Dynamics and the Hydromorphology of Fluvial Systems, p. 322-330en
dc.identifier.isbn1901502686en
dc.identifier.urihttps://hdl.handle.net/1959.11/8448-
dc.description.abstractMesoscale variability in hydraulic conditions plays an important role in stream ecosystem structure and function. While the structural effects of variability have been widely tested, its influence on ecosystem processes is less well understood. This study examines the influence of spatial hydraulic variability on cobble biofilm metabolism in a regulated Australian upland stream. Primary production and respiration on stream cobbles forming the substrate in areas subject to three different flow conditions were measured using benthic chambers. Overall the cobble biofilms were found to be strongly autotrophic (P/R >> 1). Rates of respiration and, to a lesser extent, production were greatest where flow velocities and turbulence were low. Concentrations of chlorophyll a, pheophytin a and organic material were also highest in areas of lowest flow velocities. Hydraulic conditions did not affect P/R ratios. The degree of autotrophy is likely to reflect the effects of a recent fire in reducing shading and increasing nutrient influx. The observed spatial patterns can be partly explained by the greater accumulation of biomass in low flow velocity areas, but qualitative differences in biofilms are also likely to be important.en
dc.languageenen
dc.publisherIAHS Pressen
dc.relation.ispartofSediment Dynamics and the Hydromorphology of Fluvial Systemsen
dc.relation.ispartofseriesIAHS Publicationen
dc.titleLinking pattern and process: the effects of hydraulic conditions on cobble biofilm metabolism in an Australian upland streamen
dc.typeConference Publicationen
dc.relation.conferenceIAHS/ICCE International Symposium 2006: International Commission on Continental Erosion of the International Association of Hydrological Sciences International Symposium on Sediment Dynamics and the Hydromorphology of Fluvial Systemsen
dc.subject.keywordsGeomorphology and Regolith and Landscape Evolutionen
local.contributor.firstnameMichaelen
local.contributor.firstnameMartinen
local.subject.for2008040601 Geomorphology and Regolith and Landscape Evolutionen
local.subject.seo2008960506 Ecosystem Assessment and Management of Fresh, Ground and Surface Water Environmentsen
local.profile.schoolSchool of Humanities, Arts and Social Sciencesen
local.profile.schoolSchool of Humanities, Arts and Social Sciencesen
local.profile.emailmreid24@une.edu.auen
local.profile.emailmthoms2@une.edu.auen
local.output.categoryE1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20110330-112245en
local.date.conference2nd - 7th July, 2006en
local.conference.placeDundee, United Kingdomen
local.publisher.placeWallingford, United Kingdomen
local.format.startpage322en
local.format.endpage330en
local.series.issn0144-7815en
local.series.number306en
local.peerreviewedYesen
local.title.subtitlethe effects of hydraulic conditions on cobble biofilm metabolism in an Australian upland streamen
local.contributor.lastnameReiden
local.contributor.lastnameThomsen
dc.identifier.staffune-id:mreid24en
dc.identifier.staffune-id:mthoms2en
local.profile.orcid0000-0002-3948-9347en
local.profile.orcid0000-0002-8074-0476en
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:8625en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleLinking pattern and processen
local.output.categorydescriptionE1 Refereed Scholarly Conference Publicationen
local.relation.urlhttp://trove.nla.gov.au/work/20095286en
local.relation.urlhttp://www.iahs.info/redbooks/306.htmen
local.conference.detailsIAHS/ICCE International Symposium 2006: International Commission on Continental Erosion of the International Association of Hydrological Sciences International Symposium on Sediment Dynamics and the Hydromorphology of Fluvial Systems, Dundee, Scotland, 2nd - 7th July, 2006en
local.search.authorReid, Michaelen
local.search.authorThoms, Martinen
local.uneassociationUnknownen
local.year.published2006en
local.date.start2006-07-02-
local.date.end2006-07-07-
Appears in Collections:Conference Publication
School of Humanities, Arts and Social Sciences
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