DOI: 10.1016/j.marpolbul.2015.08.047
Scopus记录号: 2-s2.0-84941712553
论文题名: Inputs of anthropogenic nitrogen influence isotopic composition and trophic structure in SE Australian estuaries
作者: Mazumder D. ; Saintilan N. ; Alderson B. ; Hollins S.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2015
卷: 100, 期: 1 起始页码: 217
结束页码: 223
语种: 英语
英文关键词: Anthropogenic N
; Estuaries
; Stable isotopes
; Trophic linkages
Scopus关键词: Biogeochemistry
; Biological materials
; Ecology
; Ecosystems
; Isotopes
; Nitrogen
; Organic compounds
; Urban growth
; Estuarine ecosystems
; Food chain lengths
; Isotopic composition
; Planktivorous fish
; Stable isotopes
; Trophic linkages
; Trophic structure
; Urban development
; Estuaries
; carbon 13
; nitrogen
; nitrogen 15
; organic matter
; carbon
; nitrogen
; anthropogenic source
; estuarine ecosystem
; estuarine pollution
; isotopic composition
; nitrogen
; stable isotope
; trophic structure
; Ambassis jacksoniensis
; animal tissue
; Article
; benthos
; carbon source
; crab
; estuary
; fish
; food chain
; invertebrate
; isotope analysis
; New South Wales
; nonhuman
; Parasesarma erythrodactyla
; planktivore
; trophic level
; animal
; aquatic species
; Australia
; Brachyura
; ecosystem
; food chain
; herbivory
; Perciformes
; Australia
; Ambassis jacksoniensis
; Chanda lala
; Decapoda (Crustacea)
; Grapsidae
; Invertebrata
; Animals
; Aquatic Organisms
; Australia
; Brachyura
; Carbon Isotopes
; Ecosystem
; Estuaries
; Fishes
; Food Chain
; Herbivory
; Invertebrates
; Nitrogen
; Nitrogen Isotopes
; Perciformes
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Urban 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 Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85936
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW, Australia; Department of Environmental Sciences, Macquarie University, Sydney, NSW, Australia; Cardno, PO Box 19, St Leonards, NSW, Australia
Recommended Citation:
Mazumder D.,Saintilan N.,Alderson B.,et al. Inputs of anthropogenic nitrogen influence isotopic composition and trophic structure in SE Australian estuaries[J]. Marine Pollution Bulletin,2015-01-01,100(1)