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dc.contributor.authorKennard, Mark J
dc.contributor.authorOlden, Julian D
dc.contributor.authorArthington, Angela H
dc.contributor.authorPusey, Bradley J
dc.contributor.authorPoff, N LeRoy
dc.date.accessioned2017-05-03T11:07:24Z
dc.date.available2017-05-03T11:07:24Z
dc.date.issued2007
dc.identifier.issn0706-652X
dc.identifier.doi10.1139/F07-108
dc.identifier.urihttp://hdl.handle.net/10072/17623
dc.description.abstractWe examine the multiscale influence of environmental and hydrological features of the riverine landscape on spatial and temporal variation in fish assemblages in eastern Australia. Multiresponse artificial neural network models provided accurate predictions of fish assemblages in the Mary River based on species presence-absence data (mean Bray-Curtis similarity between predicted and observed composition = 84%) but were less accurate when based on species relative abundance or biomass (mean similarity = 62% and 59%, respectively). Landscape- and local-scale habitat variables (e.g., catchment area and riparian canopy cover) and characteristics of the long-term flow regime (e.g., variability and predictability of flows) were more important predictors of fish assemblages than variables describing the short-term history of hydrological events. The relative importance of these variables was broadly similar for predicting species occurrence, relative abundance, or biomass. The transferability of the Mary River predictive models to the nearby Albert River was high for species presence-absence (i.e., closer match between predicted and observed data) compared with species abundances or biomass. This suggests that the same landscape-scale features are important determinants of distribution of individual species in both rivers but that interactions between landscape, hydrology, and local habitat features that collectively determine abundance and biomass may differ.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent849015 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherNational Research Council Canada
dc.publisher.placeOttawa, Canada
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom1346
dc.relation.ispartofpageto1359
dc.relation.ispartofjournalCanadian Journal of Fisheries and Aquatic Sciences
dc.relation.ispartofvolume64
dc.rights.retentionY
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchZoology
dc.subject.fieldofresearchFisheries sciences
dc.subject.fieldofresearchcode3103
dc.subject.fieldofresearchcode3109
dc.subject.fieldofresearchcode3005
dc.titleMultiscale effects of flow regime and habitat and their interaction on fish assemblage structure in eastern Australia
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyright© 2007 NRC Research Press. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2015-05-12T02:03:45Z
gro.hasfulltextFull Text
gro.griffith.authorArthington, Angela H.
gro.griffith.authorKennard, Mark J.


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