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dc.contributor.authorTakahashi, Eri
dc.contributor.authorE. Arthur, Karen
dc.contributor.authorShaw, Glendon
dc.date.accessioned2017-05-03T11:10:52Z
dc.date.available2017-05-03T11:10:52Z
dc.date.issued2008
dc.date.modified2010-01-12T06:53:48Z
dc.identifier.issn15689883
dc.identifier.doi10.1016/j.hal.2007.09.003
dc.identifier.urihttp://hdl.handle.net/10072/26125
dc.description.abstractOkadaic acid (OA) is a diarrhetic shellfish poison (DSP) produced by a number of marine organisms including the benthic dinoflagellate Prorocentrum lima, which are often found on seagrass. As seagrass forms the basis of the diet of dugong (Dugong dugon) and green turtle (Chelonia mydas), these herbivores may potentially be exposed to OA through ingestion of P. lima found on the seagrass. In this study, the abundance of epiphytic P. lima, on seagrass, and the concentration of OA produced by these epiphytic dinoflagellates was measured in Moreton Bay, Queensland, Australia. P. lima and OA were found on all four species of seagrass collected. OA was detected in epiphytic material collected from seagrass, with a maximum of 460 ng OA/kg(wwtSG) found on Halophila spinulosa. From this information, the estimated maximum daily intake (DI) of OA by an adult dugong consuming 40 kg(wwtSG)/day was 18,400 ng/day, and an adult turtle consuming 2 kg(wwtSG)/day was 920 ng/day. Analysis by HPLC/MS/MS of 54 stranded dugongs and 19 stranded turtles did not yield OA above the detection limit of 10,000 ng/kg(animal tissue). OA was found on seagrass, however it was not detected in the tissue samples of dugongs and turtles.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent302790 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.publisher.placeLondon
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom430
dc.relation.ispartofpageto437
dc.relation.ispartofjournalHarmful Algae
dc.relation.ispartofvolume7
dc.rights.retentionY
dc.subject.fieldofresearchEnvironmental Sciences
dc.subject.fieldofresearchBiological Sciences
dc.subject.fieldofresearchcode05
dc.subject.fieldofresearchcode06
dc.titleOccurrence of okadaic acid in the feeding grounds of dugongs (Dugong dugon) and green turtles (Chelonia mydas) in Moreton Bay, Australia
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.rights.copyright© 2008 Elsevier. 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.issued2008
gro.hasfulltextFull Text
gro.griffith.authorShaw, Glendon R.
gro.griffith.authorTakahashi, Eri


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