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dc.contributor.authorHadwen, Wade L
dc.contributor.authorRussell, Grant L
dc.contributor.authorArthington, Angela H
dc.date.accessioned2017-05-03T13:16:40Z
dc.date.available2017-05-03T13:16:40Z
dc.date.issued2007
dc.date.modified2009-08-05T06:29:52Z
dc.identifier.issn1323-1650
dc.identifier.doi10.1071/MF06157
dc.identifier.urihttp://hdl.handle.net/10072/17697
dc.description.abstractDespite remaining closed for variable periods, intermittently open estuaries provide habitat for estuarine and marine fish species of commercial and recreational value.To better understand how these systems trophically support their fish assemblages, the diets of four valued fish species, namely Acanthopagrus australis, Platycephalus fuscus, Sillago ciliata and Mugil cephalus, were examined in two intermittently open estuaries in New SouthWales, Australia. Fish diets were determined using both gut contents and stable isotope analyses because the different temporal resolutions afforded by these methods can provide insight into the flexibility of fish diets. Stable isotope signatures of prey and fish proved to be particularly useful in analyses of the diets of M. cephalus and P. fuscus, because these species consume large quantities of unidentifiable organic matter and have high incidences of empty guts respectively. Diet reconstructions across methods were generally consistent for A. australis, but differed substantially for S. ciliata, with fewer prey taxa identified in the guts than expected. This result suggests that individual S. ciliata switch between local resources on the basis of their fluctuating temporal availability.Trophic flexibility, coupled with broad physicochemical tolerances, enables these species to flourish in the challenging environment of intermittently open estuaries.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent1165477 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherCSIRO Publishing
dc.publisher.placeMelbourne, Australia
dc.publisher.urihttp://www.publish.csiro.au/nid/126.htm
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom363
dc.relation.ispartofpageto375
dc.relation.ispartofjournalMarine and Freshwater Research
dc.relation.ispartofvolume58
dc.rights.retentionY
dc.subject.fieldofresearchcode270702
dc.titleGut content- and stable isotope-derived diets of four commercially and recreationally important fish species in two intermittently open estuaries
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyright© 2007 CSIRO. Please refer to the journal's website for access to the definitive, published version. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher.
gro.date.issued2007
gro.hasfulltextFull Text
gro.griffith.authorArthington, Angela H.
gro.griffith.authorHadwen, Wade L.


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