Show simple item record

dc.contributor.authorEbner, Brendan
dc.contributor.authorLintermans, Mark
dc.contributor.authorJekabsons, Mark
dc.contributor.authorDunford, Mark
dc.contributor.editorA. J. Boulton & K. Hunter
dc.date.accessioned2017-05-03T15:32:56Z
dc.date.available2017-05-03T15:32:56Z
dc.date.issued2010
dc.date.modified2011-03-14T07:02:51Z
dc.identifier.issn13231650
dc.identifier.doi10.1071/MF10043
dc.identifier.urihttp://hdl.handle.net/10072/37190
dc.description.abstractUnderstanding the spatial ecology of animals is an important part of conserving biodiversity. In this context,manual radio-tracking is a primary means for understanding the movement of freshwater fish. Our aim was to determine the suitability of using linear or area-based estimates to quantify diel use of space by Macquarie perch, Macquaria australasica (Percichthyidae), in a reservoir. Area-based estimates were calculated as minimum convex polygons (MCPs). Four-hourly radio-tracking of 23 adults within diel periods resulted in 136 pairs of linear and area-based estimates. We encountered problems with MCPs that were not associated with outlying radio-fixes. MCPs were more likely to overlap with land as the extent of an individual's range increased. Corrections were applied to account for land intersecting with MCPs (33.1% of cases); however, underestimates of diel range occurred in most of these cases. MCPs were also small despite substantial movement along one dimension if individuals occupied only straight-edged sections of the reservoir and did not traverse bays or peninsulas (8.1% of estimates). Mean (+/-s.e.) diel-range length was 516+/-89m (n=23) and records varied from 6 to 1972 m. In waterways with convoluted shorelines, linear estimates of diel range are more reliable than area-based estimates derived from manual radio-tracking.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent266328 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherCSIRO Publishing
dc.publisher.placeAustralia
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom1360
dc.relation.ispartofpageto1365
dc.relation.ispartofissue12
dc.relation.ispartofjournalMarine and Freshwater Research
dc.relation.ispartofvolume61
dc.rights.retentionY
dc.subject.fieldofresearchFreshwater Ecology
dc.subject.fieldofresearchPopulation Ecology
dc.subject.fieldofresearchcode060204
dc.subject.fieldofresearchcode060207
dc.titleConvoluted shorelines confound diel-range estimates of radio-tracked fish
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyright© 2010 CSIRO. This is the author-manuscript version of this paper. Reproduced 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.issued2010
gro.hasfulltextFull Text
gro.griffith.authorEbner, Brendan C.


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