Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/81983
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dc.contributor.authorDoubleday, Z.en
dc.contributor.authorHarris, H.en
dc.contributor.authorIzzo, C.en
dc.contributor.authorGillanders, B.en
dc.date.issued2014en
dc.identifier.citationAnalytical Chemistry, 2014; 86(1):865-869en
dc.identifier.issn0003-2700en
dc.identifier.issn1520-6882en
dc.identifier.urihttp://hdl.handle.net/2440/81983-
dc.description.abstractThe chemistry of fish ear bones (otoliths) is used to address fundamental questions in fish ecology and fisheries science. It is assumed that strontium (Sr), the most important element used in otolith chemistry research, is bound within the aragonitic calcium carbonate lattice of otoliths via random chemical replacement of calcium; however, this has never been tested and three other alternatives exist with regard to how Sr may be incorporated. If any variation in the mode of incorporation occurs, otolith chemistry data may be misinterpreted, impacting how fish and fisheries are understood and managed. Using X-ray absorption spectroscopy (specifically, analysis of extended X-ray absorption fine structure or EXAFS), we investigated how Sr is incorporated within fish otoliths from seven species collected from a range of aquatic environments. For comparison, aragonitic structures from other aquatic taxa (cephalopods and coral) were also analyzed. The results consistently indicated for all samples that Sr randomly replaces Ca within the aragonite lattice. This research explicitly shows how Sr is bound within otoliths and validates a fundamental and long-held assumption in aquatic research.en
dc.description.statementofresponsibilityZoë A. Doubleday, Hugh H. Harris, Christopher Izzo, and Bronwyn M. Gillandersen
dc.language.isoenen
dc.publisherAmerican Chemical Societyen
dc.rights© 2013 American Chemical Societyen
dc.subjectOtolithic Membrane; Animals; Fishes; Calcium Carbonate; Strontium; Random Allocation; X-Ray Absorption Spectroscopyen
dc.titleStrontium randomly substituting for calcium in fish otolith aragoniteen
dc.typeJournal articleen
dc.identifier.rmid0030000175en
dc.identifier.doi10.1021/ac4034278en
dc.relation.granthttp://purl.org/au-research/grants/arc/DP110100716en
dc.relation.granthttp://purl.org/au-research/grants/arc/FT100100767en
dc.relation.granthttp://purl.org/au-research/grants/arc/DP0985807en
dc.identifier.pubid64181-
pubs.library.collectionGeology & Geophysics publicationsen
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
Appears in Collections:Geology & Geophysics publications

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