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dc.contributor.authorJardine, Timothy D
dc.contributor.authorHunt, Richard J
dc.contributor.authorPusey, Bradley J
dc.contributor.authorBunn, Stuart E
dc.contributor.editorA. Boulton
dc.date.accessioned2017-05-03T11:34:22Z
dc.date.available2017-05-03T11:34:22Z
dc.date.issued2011
dc.date.modified2013-05-30T01:28:45Z
dc.identifier.issn1323-1650
dc.identifier.doi10.1071/MF10211
dc.identifier.urihttp://hdl.handle.net/10072/42544
dc.description.abstractDespite prior studies showing good agreement between fin and muscle isotope ratios in temperate fishes, the non-lethal method of fin sampling has yet to become a standard technique in isotopic food-web studies, and the relationship between the two tissues has never been tested in the tropics. We hypothesised that fin and muscle d13C and d15N would be strongly correlated in tropical fishes, thus allowing non-lethal sampling of these species. To test this hypothesis, we analysed fin and muscle tissues from 174 tropical fishes representing 27 species from the Mitchell River, Queensland, Australia. Fin tissue was a strong predictor of muscle-tissue d13C (r2 = 0.91 for all species) and was slightly enriched in 13C (0.9马 consistent with the results of studies on temperate species. Fin tissue was a poorer predictor of muscle-tissue d15N (r2 = 0.56 for all species) although the mean difference between the tissues was small (<0.1驮 Differences were smallest in the largest fish, possibly because the elemental composition (%N) of fin more closely resembled that of muscle. These measurements provide more impetus for increased use of fin tissue as a non-destructive means of testing hypotheses about fish food webs in the tropics and elsewhere.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent157084 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherCSIRO Publishing
dc.publisher.placeAustralia
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom83
dc.relation.ispartofpageto90
dc.relation.ispartofissue1
dc.relation.ispartofjournalMarine and Freshwater Research
dc.relation.ispartofvolume62
dc.rights.retentionY
dc.subject.fieldofresearchEcosystem function
dc.subject.fieldofresearchFreshwater ecology
dc.subject.fieldofresearchcode410203
dc.subject.fieldofresearchcode310304
dc.titleA non-lethal sampling method for stable carbon and nitrogen isotope studies of tropical fishes
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyright© 2011 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.issued2011
gro.hasfulltextFull Text
gro.griffith.authorBunn, Stuart E.


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