Show simple item record

dc.contributor.authorUdy, Jamesen_US
dc.contributor.authorFellows, Christyen_US
dc.contributor.authorBartkow, Michaelen_US
dc.contributor.authorBunn, Stuarten_US
dc.contributor.authorD. Harch, Bronwynen_US
dc.date.accessioned2017-05-03T12:21:30Z
dc.date.available2017-05-03T12:21:30Z
dc.date.issued2006en_US
dc.date.modified2010-08-26T07:38:23Z
dc.identifier.issn00188158en_US
dc.identifier.doi10.1007/s10750-005-9006-1en_AU
dc.identifier.urihttp://hdl.handle.net/10072/14480
dc.description.abstractTo better understand how freshwater ecosystems respond to changes in catchment land-use, it is important to develop measures of ecological health that include aspects of both ecosystem structure and function. This study investigated measures of nutrient processes as potential indicators of stream ecosystem health across a land-use gradient from relatively undisturbed to highly modified. A total of seven indicators (potential denitrification; an index of denitrification potential relative to sediment organic matter; benthic algal growth on artificial substrates amended with (a) N only, (b) P only, and (c) N and P; and delta N-15 of aquatic plants and benthic sediment) were measured at 53 streams in southeast Queensland, Australia. The indicators were evaluated by their response to a defined gradient of agricultural land-use disturbance as well as practical aspects of using the indicators as part of a monitoring program. Regression models based on descriptors of the disturbance gradient explained a large proportion of the variation in six of the seven indicators. Denitrification index, algal growth in N amended substrate, and delta N-15 of aquatic plants demonstrated the best regression. However, the delta N-15 value of benthic sediment was found to be the best indicator overall for incorporation into a monitoring program, as samples were relatively easy to collect and process, and were successfully collected at more than 90% of the study sites.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.format.extent177568 bytes
dc.format.extent703634 bytes
dc.format.extent674254 bytes
dc.format.extent662432 bytes
dc.format.extent643696 bytes
dc.format.extent771882 bytes
dc.format.extent56780 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypeimage/tiff
dc.format.mimetypeimage/tiff
dc.format.mimetypeimage/tiff
dc.format.mimetypeimage/tiff
dc.format.mimetypeimage/tiff
dc.format.mimetypetext/plain
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherSpringeren_US
dc.publisher.placeDordrecht, Netherlandsen_US
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom89en_US
dc.relation.ispartofpageto102en_US
dc.relation.ispartofjournalHydrobiologiaen_US
dc.relation.ispartofvolume572en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchcode270701en_US
dc.titleMeasures of nutrient processes as indicators of stream ecosystem healthen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, Griffith Institute for Drug Discoveryen_US
gro.rights.copyrightCopyright 2006 Springer. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. The original publication is available at www.springerlink.comen_AU
gro.date.issued2006
gro.hasfulltextFull Text


Files in this item

This item appears in the following Collection(s)

  • Journal articles
    Contains articles published by Griffith authors in scholarly journals.

Show simple item record