Show simple item record

dc.contributor.authorShepard, E.
dc.contributor.authorWilson, R.
dc.contributor.authorLiebsch, N.
dc.contributor.authorQuintana, F.
dc.contributor.authorLaich, A.
dc.contributor.authorLucke, Klaus
dc.date.accessioned2017-01-30T11:29:12Z
dc.date.available2017-01-30T11:29:12Z
dc.date.created2014-11-19T01:13:30Z
dc.date.issued2008
dc.identifier.citationShepard, E. and Wilson, R. and Liebsch, N. and Quintana, F. and Laich, A. and Lucke, K. 2008. Flexible paddle sheds new light on speed: a novel method for the remote measurement of swim speed in aquatic animals. Endangered Species Research. 4: pp. 157-164.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/12183
dc.description.abstract

Speed is a key determinant of energy expenditure in free-living animals, and particularlyin marine vertebrates, where power requirements for swimming increase as a cubed function ofthe speed. However, current devices used to measure swim speed in free-living animals have limitations,including excessive drag, low resolution, high stall speed (ca. 0.3 m s–1), cost, biofouling andsusceptibility to damage. We present a speed sensor system that utilises the reflectance of infraredlight against a flexible paddle that bends in relation to the flow of water over the study animal. In laboratorytrials, this performed well across a range of speeds (0.1 to 1.75 m s–1), and had a stall speed of0.1 m s–1. The advantages of this present paddle system are that it is impervious to the presence ofmatter in the water column, is inexpensive and easily replaceable. Furthermore, the system is able torecord speed data at an unparalleled resolution, limited solely by sampling frequency. Data fromdeployments of devices on free-living imperial cormorants Phalacrocorax atriceps identified changesin speed within and between swim strokes, and also showed that greater speed was generated perkick as the buoyancy decreased with depth. As such, the flexible paddle system holds promise for themeasurement of speed in free-living, aquatic animals.

dc.publisherInter-Research
dc.relation.urihttp://www.int-res.com/articles/esr2008/4/n004p157.pdf
dc.subjectSpeed
dc.subjectEnergy expenditure
dc.subjectDive behaviour
dc.subjectFlow meter
dc.subjectElectronic tagging
dc.subjectMarine predator
dc.titleFlexible paddle sheds new light on speed: a novel method for the remote measurement of swim speed in aquatic animals
dc.typeJournal Article
dcterms.source.volume4
dcterms.source.startPage157
dcterms.source.endPage164
dcterms.source.issn1863-5407
dcterms.source.titleEndangered Species Research
curtin.accessStatusFulltext not available


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record