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dc.contributor.authorHughes, Janeen_US
dc.contributor.authorBunn, Stuarten_US
dc.date.accessioned2017-04-24T10:41:33Z
dc.date.available2017-04-24T10:41:33Z
dc.date.issued2001en_US
dc.identifier.issn0706652Xen_US
dc.identifier.doi10.1139/f01-113en_US
dc.identifier.urihttp://hdl.handle.net/10072/3709
dc.description.abstractDendritic channel patterns have the potential to isolate populations within drainages, depending on the relative position within the stream hierarchy of the populations. We investigated the extent of genetic subdivision in the Australian freshwater fish Pseudomugil signifer (Kner) (Pseudomugilidae) from two drainages in northern Queensland, Australia, using allozyme techniques. The drainages were adjacent and had similar channel patterns each with two major subcatchments coalesced to an estuarine confluence. Analysis of 30 sites across the two drainages revealed that although there was significant genetic variation among sites in both drainages, this was not between the two subcatchments in either case. This result did not support predictions of the stream hierarchy model (SHM), which would predict higher levels of variation among subcatchments than within them, nor did it suggest that estuarine conditions represent a significant barrier to dispersal in this species. More variation was among sites within each subcatchment. Multidimensional scaling plots revealed that, although most sites within a drainage were similar to one another, outlier sites occurred in each drainage, so correlations between genetic distance and geographic distance were weak. We suggest that the distance between sites and the probability of connectivity between sites may better explain the observed distribution of genetic diversity.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.format.extent6053500 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_US
dc.publisherNRC Research Pressen_US
dc.publisher.placeCanadaen_US
dc.relation.ispartofpagefrom1842en_US
dc.relation.ispartofpageto1852en_US
dc.relation.ispartofjournalCanadian Journal of Fisheries and Aquatic Sciencesen_US
dc.relation.ispartofvolume58en_US
dc.subject.fieldofresearchcode270701en_US
dc.titleWithin-drainage population genetic structure of the freshwater fish Pseudomugil signifer (Pseudomugilidae) in norther. Australiaen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, Griffith School of Environmenten_US
gro.rights.copyrightCopyright2001 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.en_US
gro.date.issued2015-05-11T05:35:59Z
gro.hasfulltextFull Text


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