dc.contributor.author | Ebner, Brendan | |
dc.contributor.author | Lintermans, Mark | |
dc.contributor.author | Jekabsons, Mark | |
dc.contributor.author | Dunford, Mark | |
dc.contributor.editor | A. J. Boulton & K. Hunter | |
dc.date.accessioned | 2017-05-03T15:32:56Z | |
dc.date.available | 2017-05-03T15:32:56Z | |
dc.date.issued | 2010 | |
dc.date.modified | 2011-03-14T07:02:51Z | |
dc.identifier.issn | 13231650 | |
dc.identifier.doi | 10.1071/MF10043 | |
dc.identifier.uri | http://hdl.handle.net/10072/37190 | |
dc.description.abstract | Understanding 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.peerreviewed | Yes | |
dc.description.publicationstatus | Yes | |
dc.format.extent | 266328 bytes | |
dc.format.mimetype | application/pdf | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | CSIRO Publishing | |
dc.publisher.place | Australia | |
dc.relation.ispartofstudentpublication | N | |
dc.relation.ispartofpagefrom | 1360 | |
dc.relation.ispartofpageto | 1365 | |
dc.relation.ispartofissue | 12 | |
dc.relation.ispartofjournal | Marine and Freshwater Research | |
dc.relation.ispartofvolume | 61 | |
dc.rights.retention | Y | |
dc.subject.fieldofresearch | Freshwater Ecology | |
dc.subject.fieldofresearch | Population Ecology | |
dc.subject.fieldofresearchcode | 060204 | |
dc.subject.fieldofresearchcode | 060207 | |
dc.title | Convoluted shorelines confound diel-range estimates of radio-tracked fish | |
dc.type | Journal article | |
dc.type.description | C1 - Articles | |
dc.type.code | C - Journal Articles | |
gro.faculty | Griffith 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.issued | 2010 | |
gro.hasfulltext | Full Text | |
gro.griffith.author | Ebner, Brendan C. | |