Inputs of anthropogenic nitrogen influence isotopic composition and trophic structure in SE Australian estuaries

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dc.contributor.authorMazumder, Den_AU
dc.contributor.authorSaintilan, Nen_AU
dc.contributor.authorAlderson, Ben_AU
dc.contributor.authorHollins, SEen_AU
dc.date.accessioned2021-08-26T04:37:26Zen_AU
dc.date.available2021-08-26T04:37:26Zen_AU
dc.date.issued2015-11-15en_AU
dc.date.statistics2021-08-18en_AU
dc.description.abstractUrban development in coastal settings has increased the input of nitrogen into estuaries globally, in many cases changing the composition of estuarine ecosystems. By focussing on three adjacent estuaries with a gradient of anthropogenic N loadings, we used stable isotopes of N and C to test for changes due to increased anthropogenic N input on the structure of some key trophic linkages in estuaries. We found a consistent enrichment in δ15N corresponding to increased anthropogenic N at the three ecosystem levels studied: fine benthic organic matter, grazing invertebrate, and planktivorous fish. The degree of enrichment in δ15N between fine benthic organic matter and the grapsid crab Parasesarma erythrodactyla was identical across the three sites. The glassfish Ambassis jacksoniensis showed lower levels of enrichment compared to basal food sources at the higher N-loaded sites, suggesting a possible effect of anthropogenic N in decreasing food-chain length in these estuaries. © 2015 Elsevier B.Ven_AU
dc.identifier.citationMazumder, D., Saintilan, N., Alderson, B., & Hollins, S. (2015). Inputs of anthropogenic nitrogen influence isotopic composition and trophic structure in SE Australian estuaries. Marine Pollution Bulletin, 100(1), 217-223. doi:10.1016/j.marpolbul.2015.08.047en_AU
dc.identifier.issn0025-326Xen_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleMarine Pollution Bulletinen_AU
dc.identifier.pagination217-223en_AU
dc.identifier.urihttps://doi.org/10.1016/j.marpolbul.2015.08.047en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11516en_AU
dc.identifier.volume100en_AU
dc.language.isoenen_AU
dc.publisherElsevier B. V.en_AU
dc.subjectEstuariesen_AU
dc.subjectStable isotopesen_AU
dc.subjectEcosystemsen_AU
dc.subjectOrganic matteren_AU
dc.subjectInvertebratesen_AU
dc.subjectPlanktonen_AU
dc.subjectFishesen_AU
dc.subjectCrabsen_AU
dc.titleInputs of anthropogenic nitrogen influence isotopic composition and trophic structure in SE Australian estuariesen_AU
dc.typeJournal Articleen_AU
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