Comparative approaches to understand metal bioaccumulation in aquatic animals

Wang, Wen‐Xiong; Rainbow, Philip S.

doi:10.1016/j.cbpc.2008.04.003

Cited by 155 publications

(96 citation statements)

References 78 publications

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“…Trophic transfer is now considered the dominant pathway through which many metals are accumulated in aquatic organisms (for reviews, see Wang and Fisher 1999, Wang 2002, Wang and Rainbow 2008. Numerous studies have been conducted on Hg bioaccumulation in fish, and in particular on Hg concentrations in fish tissues and their links with trophic position (e.g., Magalhaes et al 2007, Levinton and Pochron 2008, Rypel et al 2008.…”

Section: Trophic Transfer and Exposure In Fishmentioning

confidence: 99%

“…Recently, there have been a substantial number of studies on the biodynamics of Hg in both freshwater and marine fish. Biodynamic studies have benefited greatly from the development of a biokinetic model over the past decade to predict the bioaccumulation of metals in aquatic organisms (see reviews by Rainbow 2005, Wang andRainbow 2008). In this review, I will highlight some of these recent studies and discuss the biodynamic mechanisms controlling the trophic transfer of Hg in fish.…”

Section: Introductionmentioning

confidence: 99%

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Biodynamic understanding of mercury accumulation in marine and freshwater fish

Wang¹

2012

Advances in environmental research

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Abstract. Mercury (Hg) is a global environmental pollutant that has been the cause of many public concerns. One particular concern about Hg in aquatic systems is its trophic transfer and biomagnification in food chains. For example, the Hg concentration increases with the increase of food chain level. Fish at the top of food chain can accumulate high concentrations of Hg (especially the toxic form, methylmercury, MeHg), which is then transferred to humans through seafood consumption. Various biological and physiochemical conditions can significantly affect the bioaccumulation of Hg−including both its inorganic (Hg(II)) and organic (MeHg) forms−in fish. There have been numerous measurements of Hg concentrations in marine and freshwater fish worldwide. Many of these studies have attempted to identify the processes leading to variations of Hg concentrations in fish species from different habitats. The development of a biokinetic model over the past decade has helped improve our understanding of the mechanisms underlying the bioaccumulation processes of Hg in aquatic animals. In this review, I will discuss how the biokinetic modeling approach can be used to reveal the interesting biodynamics of Hg in fish, such as the trophic transfer and exposure route of Hg(II) and MeHg, as well as growth enrichment (the increases in Hg concentration with fish size) and biomass dilution (the decreases in Hg concentration with increasing phytoplankton biomass). I will also discuss the relevance of studying the subcellular fates of Hg to predict the Hg bioaccessibility and detoxification in fish. Future challenges will be to understand the inter-and intra-species differences in Hg accumulation and the management/mitigation of Hg pollution in both marine and freshwater fish based on our knowledge of Hg biodynamics.

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Section: Trophic Transfer and Exposure In Fishmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biodynamic understanding of mercury accumulation in marine and freshwater fish

Wang¹

2012

Advances in environmental research

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“…Soil solution is actually considered as a major exposure pathway for the majority of pedofauna. Metal(loid) bioaccumulation is a complex process which includes absorption, intrinsic distribution, storage, and excretion (Wang and Rainbow, 2008). Indeed, the type of metal(loid) and soil physico-chemical properties as well as organism physiology can affect metal(loid) bioaccumulation (Lanno et al, 2004;Ardestani and Van Gestel, 2013).…”

Section: Introductionmentioning

confidence: 99%

Ecological changes in historically polluted soils: Metal(loid) bioaccumulation in microarthropods and their impact on community structure

Austruy¹,

Laplanche

Mombo

et al. 2016

Geoderma

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 15976 a b s t r a c tSoil pollution by persistent metal(loid)s present environmental and sanitary risks. While the effects of metal(loid)s on vegetation and macrofauna have been widely studied, their impact on microarthropods (millimetre scale) and their bioaccumulation capacity have been less investigated. However, microarthropods provide important ecosystem services, contributing in particular to soil organic matter dynamics. This study focussed on the impact of metal(loid) pollution on the structure and distribution of microarthropod communities and their potential to bioaccumulate lead (Pb). Soil samples were collected from a contaminated historical site with a strong horizontal and vertical gradient of Pb concentrations. Microarthropods were extracted using the Berlese method. The field experiments showed that microarthropods were present even in extremely polluted soils (30,000 mg Pb kg −1 ). However, while microarthropod abundance increased with increasing soil C/N content (R 2 = 0.79), richness decreased with increasing pollution. A shift in the community structure from an oribatid-to a springtail-dominated community was observed in less polluted soils (R 2 = 0.68). In addition, Pb bioamplification occurred in microarthropods, with higher Pb concentrations in predators than in detritivorous microarthropods. Finally, the importance of feeding and reproductive ecological traits as potentially relevant descriptors of springtail community structures was highlighted. This study demonstrates the interest of microarthropod communities with different trophic levels and ecological features for evaluating the global environmental impact of metal(loid) pollution on soil biological quality.

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“…There is a huge intra and inter-specific variability in metal accumulation among marine invertebrates. Metal accumulation occurs to different extent in individuals depending on the metal, its speciation, its bioavailability, and the considered species and biotic (body size, gender, molting, reproductive and developmental stage, and feeding habit…) and abiotic (temperature, salinity, pH…) factors (Marsden & Rainbow, 2004;Wang & Rainbow, 2008).…”

Section: Trace Metal Bioaccumulation In Marine Invertebratesmentioning

confidence: 99%

Contribution of X-Ray Spectroscopy to Marine Ecotoxicology: Trace Metal Bioaccumulation and Detoxification in Marine Invertebrates

Barka¹

2012

Ecotoxicology

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Comparative approaches to understand metal bioaccumulation in aquatic animals

Cited by 155 publications

References 78 publications

Biodynamic understanding of mercury accumulation in marine and freshwater fish

Biodynamic understanding of mercury accumulation in marine and freshwater fish

Ecological changes in historically polluted soils: Metal(loid) bioaccumulation in microarthropods and their impact on community structure

Contribution of X-Ray Spectroscopy to Marine Ecotoxicology: Trace Metal Bioaccumulation and Detoxification in Marine Invertebrates

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