[en] Hg accumulation in marine organisms depends strongly on in situ water or sediment biogeochemistry and levels of Hg pollution. To predict the rates of Hg exposure in human communities, it is important to understand Hg assimilation and processing within commercially harvested marine fish, like the European seabass Dicentrarchus labrax. Previously, values of Δ199Hg and δ202Hg in muscle tissue successfully discriminated between seven populations of European seabass. In the present study, a multi-tissue approach was developed to assess the underlying processes behind such discrimination.
We determined total Hg content (THg), the proportion of monomethyl-Hg (%MeHg), and Hg isotopic composition (e.g. Δ199Hg and δ202Hg) in seabass liver. We compared this to the previously published data on muscle tissue and local anthropogenic Hg inputs.
The first important finding of this study showed an increase of both %MeHg and δ202Hg values in muscle compared to liver in all populations, suggesting the occurrence of internal MeHg demethylation in seabass. This is the first evidence of such a process occurring in this species. Values for mass-dependent (MDF, δ202Hg) and mass-independent (MIF, Δ199Hg) isotopic fractionation in liver and muscle accorded with data observed in estuarine fish (MDF, 0–1‰ and MIF, 0–0.7‰). Black Sea seabass stood out from other regions, presenting higher MIF values (≈1.5‰) in muscle and very low MDF (≈-1‰) in liver. This second finding suggests that under low Hg bioaccumulation, Hg isotopic composition may allow the detection of a shift in the habitat use of juvenile fish, such as for first-year Black Sea seabass.
Our study supports the multi-tissue approach as a valid tool for refining the analysis of Hg sourcing and metabolism in a marine fish. The study’s major outcome indicates that Hg levels of pollution and fish foraging location are the main factors influencing Hg species accumulation and isotopic fractionation in the organisms.
Research Center/Unit :
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège
Bakan, G., Büyükgüngör, H., The Black sea. Mar. Pollut. Bull. 41 (2000), 24–43, 10.1016/S0025-326X(00)00100-4.
Bat, L., Gökkurt, O., Sezgin, M., Üstün, F., Sahin, F., Evaluation of the Black sea land based sources of pollution the coastal region of Turkey. Open Mar. Biol. J. 3 (2010), 112–124, 10.2174/1874450800903010112.
Bat, L., Şahin, F., Öztekin, A., Metal bioaccumulation of Mytilaster lineatus (gmelin, 1791) collected from Sinop coast in the southern Black sea. Eur. J. Biol. 78 (2019), 23–28, 10.26650/eurjbiol.2019.0001.
Bat, L., Sezgin, M., Sahin, F., Heavy metal contamination of aquatic resources from Turkish Black Sea waters. J. Environ. Prot. Ecol. 19 (2018), 558–563.
Bergquist, B.A., Blum, J.D., The odds and evens of mercury isotopes: applications of mass-dependent and mass-independent isotope fractionation. Elements 5 (2009), 353–357, 10.2113/gselements.5.6.353.
Bergquist, B.A., Blum, J.D., Mass-dependent and -independent fractionation of hg isotopes by photoreduction in aquatic systems. Science 84 318 (2007), 417–420, 10.1126/science.1148050.
Blum, J.D., Popp, B.N., Drazen, J.C., Anela Choy, C., Johnson, M.W., Methylmercury production below the mixed layer in the north pacific ocean. Nat. Geosci. 6 (2013), 879–884, 10.1038/ngeo1918.
Booth, S., Zeller, D., Mercury, food webs, and marine mammals: implications of diet and climate change for human health. Environ. Health Perspect. 113 (2005), 521–526.
Bystrom, E., Assessment of Mercury Methylation and Demethylation with Focus on Chemical Speciation and Biological Processes. 2008, Georgia Institute of Technology.
Capet, A., Stanev, E.V., Beckers, J.M., Murray, J.W., Grégoire, M., Decline of the Black sea oxygen inventory. Biogeosciences 13 (2016), 1287–1297, 10.5194/bg-13-1287-2016.
Carter, W.A., Bauchinger, U., McWilliams, S.R., The importance of isotopic turnover for understanding key aspects of animal ecology and nutrition. Diversity, 11, 2019, 10.3390/D11050084.
Chandan, P., Ghosh, S., Bergquist, B.A., Mercury isotope fractionation during aqueous photoreduction of monomethylmercury in the presence of dissolved organic matter. Environ. Sci. Technol. 49 (2015), 259–267, 10.1021/es5034553.
Christophoridis, A., Stamatis, N., Orfanidis, S., Sediment heavy metals of a mediterranean coastal lagoon: Agiasma, nestos delta, eastern Macedonia (Greece). Transitional Waters Bull 1 (2007), 33–43, 10.1285/i1825229Xv1n4p33.
Cizdziel, J., Hinners, T., Cross, C., Pollard, J., Distribution of mercury in the tissues of five species of freshwater fish from Lake Mead, USA. J. Environ. Monit. 5 (2003), 802–807, 10.1039/b307641p.
Coelho, J.P., Pereira, M.E., Duarte, A., Pardal, M.A., Macroalgae response to a mercury contamination gradient in a temperate coastal lagoon (Ria de Aveiro, Portugal). Estuar. Coast Shelf Sci. 65 (2005), 492–500, 10.1016/j.ecss.2005.06.020.
Cransveld, A., Amouroux, D., Tessier, E., Koutrakis, E., Ozturk, A.A., Bettoso, N., Mieiro, C.L., Bérail, S., Barre, J.P.G., Sturaro, N., Schnitzler, J., Das, K., Mercury stable isotopes discriminate different populations of European seabass and trace potential Hg sources around Europe. Environ. Sci. Technol. 51 (2017), 12219–12228, 10.1021/acs.est.7b01307.
Du, B., Feng, X., Li, P., Yin, R., Yu, B., Sonke, J.E., Guinot, B., Anderson, C.W.N., Maurice, L., Use of mercury isotopes to quantify mercury exposure sources in inland populations, China. Environ. Sci. Technol. 52 (2018), 5407–5416, 10.1021/acs.est.7b05638.
Du, H., Ma, M., Igarashi, Y., Wang, D., Biotic and abiotic degradation of methylmercury in aquatic ecosystems: a review. Bull. Environ. Contam. Toxicol. 102 (2019), 605–611, 10.1007/s00128-018-2530-2.
Eagles-Smith, C.A., Ackerman, J.T., Yee, J., Adelsbach, T.L., Mercury demethylation in waterbird livers: dose-response thresholds and differences among species. Environ. Toxicol. Chem. 28 (2009), 568–577, 10.1897/08-245.1.
Feng, C., Pedrero, Z., Gentès, S., Barre, J., Renedo, M., Tessier, E., Berail, S., Maury-Brachet, R., Mesmer-Dudons, N., Baudrimont, M., Legeay, A., Maurice, L., Gonzalez, P., Amouroux, D., Specific pathways of dietary methylmercury and inorganic mercury determined by mercury speciation and isotopic composition in zebrafish (Danio rerio). Environ. Sci. Technol. 49 (2015), 12984–12993, 10.1021/acs.est.5b03587.
Foucher, D., Ogrinc, Hintelmann, H., Tracing mercury contamination from the Idrija mining region (Slovenia) to the Gulf of trieste using Hg isotope ratio measurements. Environ. Sci. Technol. 43 (2009), 33–39, 10.1021/es801772b.
Gantner, N., Hintelmann, H., Zheng, W., Muir, D.C., Variations in stable isotope fractionation of Hg in food webs of Arctic lakes. Environ. Sci. Technol. 43 (2009), 9148–9154, 10.1021/es901771r.
Gehrke, G.E., Blum, J.D., Slotton, D.G., Greenfield, B.K., Mercury isotopes link mercury in san francisco bay forage fish to surface sediments. Environ. Sci. Technol. 45 (2011), 1264–1270, 10.1021/es103053y.
Gentès, S., Maury-Brachet, R., Feng, C., Pedrero, Z., Tessier, E., Legeay, A., Mesmer-Dudons, N., Baudrimont, M., Maurice, L., Amouroux, D., Gonzalez, P., Specific effects of dietary methylmercury and inorganic mercury in zebrafish (Danio rerio) determined by genetic, histological, and metallothionein responses. Environ. Sci. Technol. 49 (2015), 14560–14569, 10.1021/acs.est.5b03586.
Gökkurt, O., Bat, L., Sahin, F., The investigation of some physicochemical parameters in the Middle Black Sea (Sinop. Turkey). Proceedings of 7th National Environmental Engineering Congress, 2007, 869–873.
Gonzalez, P., Dominique, Y., Massabuau, J.C., Boudou, A., Bourdineaud, J.P., Comparative effects of dietary methylmercury on gene expression in liver, skeletal muscle, and brain of the zebrafish ( Danio rerio ). Environ. Sci. Technol. 39 (2005), 3972–3980, 10.1021/es0483490.
Gratz, L.E., Keeler, G.J., Blum, J.D., Sherman, L.S., Isotopic composition and fractionation of mercury in Great Lakes precipitation and ambient air. Environ. Sci. Technol. 44 (2010), 7764–7770, 10.1021/es100383w.
Guilherme, S., Válega, M., Pereira, M.E., Santos, M.A., Pacheco, M., Antioxidant and biotransformation responses in Liza aurata under environmental mercury exposure - relationship with mercury accumulation and implications for public health. Mar. Pollut. Bull. 56 (2008), 845–859, 10.1016/j.marpolbul.2008.02.003.
Gworek, B., Bemowska-Kałabun, O., Kijeńska, M., Wrzosek-Jakubowska, J., Mercury in marine and oceanic waters—a review. Water Air Soil Pollut., 227, 2016, 10.1007/s11270-016-3060-3.
Habran, S., Crocker, D.E., Debier, C., Das, K., How are trace elements mobilized during the postweaning fast in Northern elephant seals?. Environ. Toxicol. Chem. 31 (2012), 2354–2365, 10.1002/etc.1960.
Havelková, M., Dušek, L., Némethová, D., Poleszczuk, G., Svobodová, Z., Comparison of mercury distribution between liver and muscle - a biomonitoring of fish from lightly and heavily contaminated localities. Sensors 8 (2008), 4095–4109, 10.3390/s8074095.
Hong, Y.-S., Kim, Y.-M., Lee, K.-E., Methylmercury exposure and health effects. J. Prev. Med. public Health 45 (2012), 353–363, 10.3961/jpmph.2012.45.6.353.
Jardine, T., Kidd, K.A., Fisk, A.T., Critical review applications, considerations, and sources of uncertainty when using stable isotope analysis in ecotoxicology. Crit. Rev. 40 (2006), 7501–7511, 10.1021/es061263h.
Jennings, S., Lancaster, J.E., Ryland, J.S., Shackley, S.E., The age structure and growth dynamics of young-of-the-year bass, dicentrarchus labrax, populations. J. Mar. Biol. Assoc. U. K. 71 (1991), 799–810, 10.1017/S0025315400053467.
Kritee, K., Motta, L.C., Blum, J.D., Tsui, M.T.K., Reinfelder, J.R., Photomicrobial visible light-induced magnetic mass independent fractionation of mercury in a marine microalga. ACS Earth Sp. Chem. 2 (2018), 432–440, 10.1021/acsearthspacechem.7b00056.
Kwon, S.Y., Blum, J.D., Carvan, M.J., Basu, N., Head, J.A., Madenjian, C.P., David, S.R., Absence of fractionation of mercury isotopes during trophic transfer of methylmercury to freshwater fish in captivity. Environ. Sci. Technol. 46 (2012), 7527–7534, 10.1021/es300794q.
Kwon, S.Y., Blum, J.D., Chen, C.Y., Meattey, D.E., Mason, R.P., Mercury isotope study of sources and exposure pathways of methylmercury in estuarine food webs in the northeastern U.S. Environ. Sci. Technol. 48 (2014), 10089–10097, 10.1021/es5020554.
Kwon, S.Y., Blum, J.D., Chen, C.Y., Meattey, D.E., Mason, R.P., Mercury isotope study of sources and exposure pathways of methylmercury in estuarine food webs in the northeastern U.S. Environ. Sci. Technol. 48 (2014), 10089–10097, 10.1021/es5020554.
Kwon, S.Y., Blum, J.D., Yin, R., Tsui, M.T.K., Yang, Y.H., Choi, J.W., Mercury stable isotopes for monitoring the effectiveness of the Minamata Convention on Mercury. Earth Sci. Rev., 203, 2020, 103111, 10.1016/j.earscirev.2020.103111.
Lang, T., Kruse, R., Haarich, M., Wosniok, W., Mercury species in dab (Limanda limanda) from the North Sea, Baltic Sea and Icelandic waters in relation to host-specific variables. Mar. Environ. Res. 124 (2017), 32–40, 10.1016/j.marenvres.2016.03.001.
Le Croizier, G., Lorrain, A., Sonke, J.E., Jaquemet, S., Schaal, G., Renedo, M., Besnard, L., Cherel, Y., Point, D., Mercury isotopes as tracers of ecology and metabolism in two sympatric shark species. Environ. Pollut., 265, 2020, 10.1016/j.envpol.2020.114931.
Lehnherr, I., St Louis, V.L., Importance of ultraviolet radiation in the photodemethylation of methylmercury in freshwater ecosystems. Environ. Sci. Technol. 43 (2009), 5692–5698, 10.1021/es9002923.
Lepak, R.F., Yin, R., Krabbenhoft, D.P., Ogorek, J.M., Dewild, J.F., Holsen, T.M., Hurley, J.P., Use of stable isotope signatures to determine mercury sources in the great lakes. Environ. Sci. Technol. Lett. 2 (2015), 335–341, 10.1021/acs.estlett.5b00277.
Li, M., Juang, C.A., Ewald, J.D., Yin, R., Mikkelsen, B., Krabbenhoft, D.P., Balcom, P.H., Dassuncao, C., Sunderland, E.M., Selenium and stable mercury isotopes provide new insights into mercury toxicokinetics in pilot whales. Sci. Total Environ., 710, 2020, 136325, 10.1016/j.scitotenv.2019.136325.
Li, M., Schartup, A.T., Valberg, A.P., Ewald, J.D., Krabbenhoft, D.P., Yin, R., Balcom, P.H., Sunderland, E.M., Environmental origins of methylmercury accumulated in subarctic estuarine fish indicated by mercury stable isotopes. Environ. Sci. Technol. 50 (2016), 11559–11568, 10.1021/acs.est.6b03206.
López, R., De Pontual, H., Bertignac, M., Mahévas, S., What can exploratory modelling tell us about the ecobiology of European sea bass (Dicentrarchus labrax): a comprehensive overview. Aquat. Living Resour. 28 (2015), 61–79, 10.1051/alr/2015007.
Luo, H., Cheng, Q., Pan, X., Photochemical behaviors of mercury (Hg) species in aquatic systems: a systematic review on reaction process, mechanism, and influencing factor. Sci. Total Environ., 720, 2020, 137540, 10.1016/j.scitotenv.2020.137540.
Man, Y., Yin, R., Cai, K., Qin, C., Wang, J., Yan, H., Li, M., Primary amino acids affect the distribution of methylmercury rather than inorganic mercury among tissues of two farmed-raised fish species. Chemosphere 225 (2019), 320–328, 10.1016/j.chemosphere.2019.03.058.
Mason, R.P., Lawson, N.M., Sheu, G.R., Mercury in the atlantic ocean: factors controlling air-sea exchange of mercury and its distribution in the upper waters. Deep. Res. Part II Top. Stud. Oceanogr. 48 (2001), 2829–2853, 10.1016/S0967-0645(01)00020-0.
Maury-Brachet, R., Durrieu, G., Dominique, Y., Boudou, A., Mercury distribution in fish organs and food regimes: significant relationships from twelve species collected in French Guiana (Amazonian basin). Sci. Total Environ. 368 (2006), 262–270, 10.1016/j.scitotenv.2005.09.077.
Mieiro, C., Pacheco, M., Pereira, M., Duarte, A., Mercury organotropism in feral European sea bass (Dicentrarchus labrax). Arch. Environ. Contam. Toxicol. 61 (2011), 135–143, 10.1007/s00244-010-9591-5.
Mieiro, C.L., Pacheco, M., Pereira, M.E., Duarte, A.C., Mercury distribution in key tissues of fish (Liza aurata) inhabiting a contaminated estuary - implications for human and ecosystem health risk assessment. J. Environ. Monit. 11 (2009), 1004–1012, 10.1039/b821253h.
Motta, L.C., Blum, J.D., Johnson, M.W., Umhau, B.P., Popp, B.N., Washburn, S.J., Drazen, J.C., Benitez-Nelson, C.R., Hannides, C.C.S., Close, H.G., Lamborg, C.H., Mercury cycling in the north pacific subtropical gyre as revealed by mercury stable isotope ratios. Global Biogeochem. Cycles 33 (2019), 777–794, 10.1029/2018GB006057.
Mozaffarian, D., Rimm, E.B., Fish intake, contaminants, and human health evaluating the risks and the benefits. J. Am. Med. Assoc. 296 (2008), 1885–1899.
Obrist, D., Kirk, J.L., Zhang, L., Sunderland, E.M., Jiskra, M., Selin, N.E., A review of global environmental mercury processes in response to human and natural perturbations: changes of emissions, climate, and land use. Ambio 47 (2018), 116–140, 10.1007/s13280-017-1004-9.
Oliveira Ribeiro, C.A., Rouleau, C., Pelletier, É., Audet, C., Tjälve, H., Distribution kinetics of dietary methylmercury in the arctic charr (Salvelinus alpinus). Environ. Sci. Technol. 33 (1999), 902–907, 10.1021/es980242n.
Özsoy, E., Ünlüata, Ü., Oceanography of the Black Sea: a review of some recent results. Earth Sci. Rev. 42 (1997), 231–272, 10.1016/S0012-8252(97)81859-4.
Pawson, M.G., Pickett, G.D., Kelley, D.F., The distribution and migrations of bass, Dicentrarchus labrax L., in waters around England and Wales as shown by tagging. J. Mar. Biol. Assoc. U. K. 67 (1987), 183–217, 10.1017/S0025315400026448.
Pentreath, R.J., The accumulation of mercury from food by the plaice,< i> Pleuronectes platessa L. J. Exp. Mar. Biol. Ecol. 25 (1976), 51–65.
Perga, M.E., Gerdeaux, D., ’Are fish what they eat’ all year round?. Oecologia 144 (2005), 598–606, 10.1007/s00442-005-0069-5.
Perrot, V., Epov, V.N., Pastukhov, M.V., Grebenshchikova, V.I., Zouiten, C., Sonke, J.E., Husted, S., Donard, O.F.X., Amouroux, D., Tracing sources and bioaccumulation of mercury in fish of lake Baikal− angara river using Hg isotopic composition. Environ. Sci. Technol. 44 (2010), 8030–8037, 10.1021/es101898e.
Perrot, V., Masbou, J., Pastukhov, M.V., Epov, V.N., Point, D., Bérail, S., Becker, P.R., Sonke, J.E., Amouroux, D., Natural Hg isotopic composition of different Hg compounds in mammal tissues as a proxy for in vivo breakdown of toxic methylmercury. Metallomics 8 (2015), 170–178, 10.1039/c5mt00286a.
Pinzone, M., Acquarone, M., Huyghebaert, L., Sturaro, N., Michel, L.N., Siebert, U., Das, K., Carbon, nitrogen and sulphur isotopic fractionation in captive juvenile hooded seal (Cystophora cristata): application for diet analysis. Rapid Commun. Mass Spectrom., 31, 2017, 10.1002/rcm.7955.
Point, D., Sonke, J.E., Day, R.D., Roseneau, D.G., Hobson, K.A., Pol, S.S. Vander, Moors, A.J., Pugh, R.S., Donard, O.F.X., Becker, P.R., Methylmercury photodegradation influenced by sea-ice cover in Arctic marine ecosystems. Nat. Geosci. 4 (2011), 188–194, 10.1038/ngeo1049.
Regnell, O., Watras, C.J., Microbial mercury methylation in aquatic environments: a critical review of published field and laboratory studies. Environ. Sci. Technol. 53 (2019), 4–19, 10.1021/acs.est.8b02709.
Renedo, M., Amouroux, D., Duval, B., Carravieri, A., Tessier, E., Barre, J., Bérail, S., Pedrero, Z., Cherel, Y., Bustamante, P., Seabird tissues as efficient biomonitoring tools for Hg isotopic investigations: implications of using blood and feathers from chicks and adults. Environ. Sci. Technol. 52 (2018), 4227–4234, 10.1021/acs.est.8b00422.
Renedo, M., Pedrero, Z., Amouroux, D., Cherel, Y., Bustamante, P., Mercury isotopes of key tissues document mercury metabolic processes in seabirds. Chemosphere, 263, 2021, 127777, 10.1016/j.chemosphere.2020.127777.
Renzoni, A., Zino, F., Franchi, E., Mercury levels along the food chain and risk for exposed populations. Environ. Res. 77 (1998), 68–72, 10.1006/enrs.1998.3832.
Rodríguez Martín-Doimeadios, R.C., Krupp, E., Amouroux, D., Donard, O.F.X., Application of isotopically labeled methylmercury for isotope dilution analysis of biological samples using gas chromatography/ICPMS. Anal. Chem. 74 (2002), 2505–2512, 10.1021/ac011157s.
Rua-Ibarz, A., Bolea-Fernandez, E., Maage, A., Frantzen, S., Sanden, M., Vanhaecke, F., Tracing mercury pollution along the Norwegian coast via elemental, speciation, and isotopic analysis of liver and muscle tissue of deep-water marine fish (brosme brosme). Environ. Sci. Technol. 53 (2019), 1776–1785, 10.1021/acs.est.8b04706.
Senn, D.B., Chesney, E.J., Blum, J.D., Bank, M.S., Maage, A., Shine, J.P., Stable isotope (N, C, Hg) study of methylmercury sources and trophic transfer in the Northern Gulf of Mexico. Environ. Sci. Technol. 44 (2010), 1630–1637.
Sherman, L.S., Blum, J.D., Mercury stable isotopes in sediments and largemouth bass from Florida lakes, USA. Sci. Total Environ. 448 (2013), 163–175, 10.1016/j.scitotenv.2012.09.038.
Sherman, L.S., Blum, J.D., Johnson, K.P., Keeler, G.J., Barres, J.A., Douglas, T.A., Mass-independent fractionation of mercury isotopes in Arctic snow driven by sunlight. Nat. Geosci. 3 (2010), 173–177, 10.1038/ngeo758.
Sonke, J.E., Heimbürger, L.E., Dommergue, A., Mercury biogeochemistry: paradigm shifts, outstanding issues and research needs. Compt. Rendus Geosci. 345 (2013), 213–224, 10.1016/j.crte.2013.05.002.
Sonne, C., Aspholm, O., Dietz, R., Andersen, S., Berntssen, M.H.G., Hylland, K., A study of metal concentrations and metallothionein binding capacity in liver, kidney and brain tissues of three Arctic seal species. Sci. Total Environ. 407 (2009), 6166–6172, 10.1016/j.scitotenv.2009.08.029.
Sunderland, E.M., Dalziel, J., Heyes, A., Branfireun, B.A., Krabbenhoft, D.P., Gobas, F.A.P.C., Response of a macrotidal estuary to changes in anthropogenic mercury loading between 1850 and 2000. Environ. Sci. Technol. 44 (2010), 1698–1704, 10.1021/es9032524.
Tollefson, L., Cordle, F., Methylmercury in fish: a review of residue levels, fish consumption and regulatory action in the United States. Environ. Health Perspect. 68 (1986), 203–208, 10.1289/ehp.8668203.
Tsui, M.T.K., Blum, J.D., Kwon, S.Y., Review of stable mercury isotopes in ecology and biogeochemistry. Sci. Total Environ., 135386, 2019, 10.1016/j.scitotenv.2019.135386.
UNEP. Global Mercury Assessment 2018 270. 2018.
UNEP. Global Mercury Assessment 2013: Sources, Emissions, Releases and Environmental Transport. 2013, United Nation Environment Programme Chemical Branch, Geneva, Switzerland.
Wagemann, R., Trebacz, E., Boila, G., Lockhart, W.L., Methylmercury and total mercury in tissues of arctic marine mammals. Sci. Total Environ. 218 (1998), 19–31.
Wang, R., Feng, X. Bin, Wang, W.X., In vivo mercury methylation and demethylation in freshwater tilapia quantified by mercury stable isotopes. Environ. Sci. Technol. 47 (2013), 7949–7957, 10.1021/es3043774.
Wang, W.X., Tan, Q.G., Applications of dynamic models in predicting the bioaccumulation, transport and toxicity of trace metals in aquatic organisms. Environ. Pollut. 252 (2019), 1561–1573, 10.1016/j.envpol.2019.06.043.
Wang, W.X., Wong, R.S.K., Bioaccumulation kinetics and exposure pathways of inorganic mercury and methylmercury in a marine fish, the sweetlips Plectorhinchus gibbosus. Mar. Ecol. Prog. Ser. 261 (2003), 257–268.
Wang, X., Wu, F., Wang, W.X., In vivo mercury demethylation in a marine fish (Acanthopagrus schlegeli). Environ. Sci. Technol. 51 (2017), 6441–6451, 10.1021/acs.est.7b00923.
Wiederhold, J.G., Skyllberg, U., Drott, A., Jiskra, M., Jonsson, S., Björn, E., Bourdon, B., Kretzschmar, R., Mercury isotope signatures in contaminated sediments as a tracer for local industrial pollution sources. Environ. Sci. Technol. 49 (2015), 177–185, 10.1021/es5044358.
Yin, R., Feng, X., Hurley, J.P., Krabbenhoft, D.P., Lepak, R.F., Kang, S., Yang, H., Li, X., Historical records of mercury stable isotopes in sediments of Tibetan lakes. Sci. Rep., 6, 2016, 23332, 10.1038/srep23332.
Zhang, T., Hsu-kim, H., Photolytic degradation of methylmercury enhanced by binding to natural organic ligands. Nat. Geosci. 3 (2010), 473–476, 10.1038/ngeo892.Photolytic.
Zheng, W., Hintelmann, H., Mercury isotope fractionation during photoreduction in natural water is controlled by its Hg/DOC ratio. Geochem. Cosmochim. Acta 73 (2009), 6704–6715, 10.1016/j.gca.2009.08.016.
Živković, I., Kotnik, J., Šolić, M., Horvat, M., The abundance, distribution and speciation of mercury in waters and sediments of the Adriatic sea - a review. Acta Adriat. 58 (2017), 165–186, 10.32582/aa.58.1.14.