Trophic structure and mercury distribution in a Gulf of St. Lawrence (Canada) food web using stable isotope analysis

Lavoie, Richard; Hebert, Craig E.; Rail, Jean‐François; Braune, Birgit M.; Yumvihoze, Emmanuel; Hill, Laura G.; Lean, D. R. S.

doi:10.1016/j.scitotenv.2010.07.053

Cited by 140 publications

(97 citation statements)

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“…3); They were comparable to the study (0.04-0.05) by Yu et al (2013) in TGR, but were lower compared with the studies in reservoirs of America and Canada (0.17-0.29) (Lavoie et al, 2010;Zhang et al, 2012). Indeed, the biomagnification values of most aquatic systems in China are relatively low (Zhang et al, 2007;Liu et al, 2012).…”

Section: Hg Biomagnification Through Aquatic Food Websupporting

confidence: 78%

“…Details of the analyses are described in Lavoie et al (2010). Procedural banks, field banks, equipment banks, and field replicates were used routinely with each batch of samples analyzed to evaluate and maintain quality assurance/quality control (QA/QC).…”

Section: Analysis Of Mercurymentioning

confidence: 99%

“…The accumulation of Hg by biota varies widely across reservoirs as shown by the biomagnification factor (BMF). Observed variations of BMF in American and Canadian reservoirs were explained by differences in location (Lavoie et al, 2010), trophic position (Tuomola et al, 2008), food web structure (Liu et al, 2012), and eutrophication status (Zhang et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Mercury bioaccumulation in the food web of Three Gorges Reservoir (China): Tempo-spatial patterns and effect of reservoir management

Zhou

Yuan

et al. 2015

Science of The Total Environment

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Section: Hg Biomagnification Through Aquatic Food Websupporting

confidence: 78%

Section: Analysis Of Mercurymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mercury bioaccumulation in the food web of Three Gorges Reservoir (China): Tempo-spatial patterns and effect of reservoir management

Zhou

Yuan

et al. 2015

Science of The Total Environment

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“…The advantage of using TP instead of a d 15 N-derived slope is that the TP corrects for the baseline and shows the biomagnifcation potential from one TP to the next averaged over the entire food web [28,36]. More detailed discussions on this approach can be found elsewhere [37].…”

Section: (E) Trophic Magnification Factorsmentioning

confidence: 99%

Bioaccumulation and trophic dilution of human pharmaceuticals across trophic positions of an effluent-dependent wadeable stream

Haddad

Luek

et al. 2014

Phil. Trans. R. Soc. B

131

118

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Though pharmaceuticals are increasingly observed in a variety of organisms from coastal and inland aquatic systems, trophic transfer of pharmaceuticals in aquatic food webs have not been reported. In this study, bioaccumulation of select pharmaceuticals was investigated in a lower order effluent-dependent stream in central Texas, USA, using isotope dilution liquid chromatography–tandem mass spectrometry (MS). A fish plasma model, initially developed from laboratory studies, was tested to examine observed versus predicted internal dose of select pharmaceuticals. Pharmaceuticals accumulated to higher concentrations in invertebrates relative to fish; elevated concentrations of the antidepressant sertraline and its primary metabolite desmethylsertraline were observed in the Asian clam, Corbicula fluminea , and two unionid mussel species. Trophic positions were determined from stable isotopes (δ 15 N and δ 13 C) collected by isotope ratio-MS; a Bayesian mixing model was then used to estimate diet contributions towards top fish predators. Because diphenhydramine and carbamazepine were the only target compounds detected in all species examined, trophic magnification factors (TMFs) were derived to evaluate potential trophic transfer of both compounds. TMFs for diphenhydramine (0.38) and carbamazepine (1.17) indicated neither compound experienced trophic magnification, which suggests that inhalational and not dietary exposure represented the primary route of uptake by fish in this effluent-dependent stream.

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“…The determination of trophic position has important significance to the interpretation of contaminant concentrations in consumers (Gu, 2009). Lavoie et al (2010) related the transfer of mercury (Hg) in a Gulf of St. Lawrence food web to the trophic structure, and suggested that Hg would be readily bioavailable to organisms at the base of the benthic food chain, but trophic transfer would be more efficient in each trophic level of pelagic and benthopelagic food chains. Similar results were reported by Swanson et al (2003) when they investigated the invasion of rainbow smelt on the trophic positions and Hg bioaccumulation of Ontario lakes.…”

Section: Nitrogen Trophic Status In Food Websmentioning

confidence: 99%

Application of stable isotope techniques in studies of carbon and nitrogen biogeochemical cycles of ecosystem

Sun

Mou

et al. 2011

Chin. Geogr. Sci.

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Stable isotope techniques have been proved useful as tools for studying the carbon (C) and nitrogen (N) biogeochemical cycles of ecosystem. This paper firstly introduced the basic principles and the distribution characteristics of stable isotope, then reviewed the recent advances and applications of stable isotope in the C and N biogeochemical cycles of ecosystem. By applying the 13 C natural abundance technique, ecologists are able to understand the photosynthetic path and CO 2 fixation of plants, the CO 2 exchange and C balance status of ecosystem, the composition, distribution and turnover of soil organic C and the sources of organic matter in food webs, while by using the 13 C labeled technique, the effects of elevated CO 2 on the C processes of ecosystem and the sources and fate of organic matter in ecosystem can be revealed in detail. Differently, by applying the 15 N natural abundance technique, ecologists are able to analyze the biological N 2 -fixation, the N sources of ecosystem, the N transformation processes of ecosystem and the N trophic status in food webs, while by using the 15 N labeled technique, the sources, transformation and fate of N in ecosystem and the effects of N input on the ecosystem can be investigated in depth. The applications of both C and N isotope natural abundance and labeled techniques, combined with the elemental, other isotope ( 34 S) and molecular biomarker information, will be more propitious to the investigation of C and N cycle mechanisms. Finally, this paper concluded the problems existed in current researches, and put forward the perspective of stable isotope techniques in the studies of C and N biogeochemical cycles of ecosystem in the future.

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Trophic structure and mercury distribution in a Gulf of St. Lawrence (Canada) food web using stable isotope analysis

Cited by 140 publications

References 50 publications

Mercury bioaccumulation in the food web of Three Gorges Reservoir (China): Tempo-spatial patterns and effect of reservoir management

Mercury bioaccumulation in the food web of Three Gorges Reservoir (China): Tempo-spatial patterns and effect of reservoir management

Bioaccumulation and trophic dilution of human pharmaceuticals across trophic positions of an effluent-dependent wadeable stream

Application of stable isotope techniques in studies of carbon and nitrogen biogeochemical cycles of ecosystem

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