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de Castro Moraes L, Bernardi JVE, de Souza JPR, Portela JF, Pereira HR, de Oliveira Barbosa H, Pires NL, Monteiro LC, Rodrigues YOS, Vieira LCG, Sousa Passos CJ, de Souza JR, Bastos WR, Dórea JG. Mercury Contamination as an Indicator of Fish Species' Trophic Position in the Middle Araguaia River, Brazil. TOXICS 2023; 11:886. [PMID: 37999538 PMCID: PMC10675111 DOI: 10.3390/toxics11110886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/17/2023] [Accepted: 10/20/2023] [Indexed: 11/25/2023]
Abstract
This study evaluates the use of mercury (Hg) concentrations in fish muscle tissue to determine a species' trophic position (TP) in its environment. A campaign conducted in 2019 along 375 km in the middle Araguaia River basin, Brazil, resulted in 239 organisms from 20 species collected. The highest total mercury (THg) concentrations were found in Pellonacastelnaeana (6.93 µg·g-1, wet weight) and in Triportheus elongatus (3.18 µg·g-1, wet weight), whose TPs were different according to the FishBase database. However, they occupied the same trophic level in this study. The intra-specific comparison showed a difference in Hg concentrations between individuals captured in distinct sites. The study of the biota-sediment accumulation factor (BSAF) showed that spatiality interferes with a species' TP. Statistical analyses revealed that when we used a predicted species' TP based on each individual's size, it explained 72% of the variability in THg concentration across all fish species. Multiple regression analysis confirmed that standard length and FishBase values are positively associated with THg (R2 = 0.943). These results point to Hg as a viable indicator of a fish species' TP since it reflects regional, biological, and environmental factors, as demonstrated here for the middle Araguaia River.
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Affiliation(s)
- Lilian de Castro Moraes
- Programa de Pós-Graduação em Ciências Ambientais, Faculdade UnB Planaltina, Universidade de Brasília, Planaltina 73345-010, DF, Brazil; (L.d.C.M.); (H.R.P.); (H.d.O.B.); (N.L.P.); (Y.O.S.R.)
| | - José Vicente Elias Bernardi
- Laboratório de Geoestatística e Geodésia, Faculdade UnB Planaltina, Universidade de Brasília, Planaltina 73345-010, DF, Brazil
| | - João Pedro Rudrigues de Souza
- Laboratório de Química Analítica e Ambiental, Instituto de Química, Universidade de Brasília, Brasília 70919-970, DF, Brazil; (J.P.R.d.S.); (J.F.P.); (J.R.d.S.)
| | - Joelma Ferreira Portela
- Laboratório de Química Analítica e Ambiental, Instituto de Química, Universidade de Brasília, Brasília 70919-970, DF, Brazil; (J.P.R.d.S.); (J.F.P.); (J.R.d.S.)
| | - Hasley Rodrigo Pereira
- Programa de Pós-Graduação em Ciências Ambientais, Faculdade UnB Planaltina, Universidade de Brasília, Planaltina 73345-010, DF, Brazil; (L.d.C.M.); (H.R.P.); (H.d.O.B.); (N.L.P.); (Y.O.S.R.)
| | - Hugo de Oliveira Barbosa
- Programa de Pós-Graduação em Ciências Ambientais, Faculdade UnB Planaltina, Universidade de Brasília, Planaltina 73345-010, DF, Brazil; (L.d.C.M.); (H.R.P.); (H.d.O.B.); (N.L.P.); (Y.O.S.R.)
| | - Nayara Luiz Pires
- Programa de Pós-Graduação em Ciências Ambientais, Faculdade UnB Planaltina, Universidade de Brasília, Planaltina 73345-010, DF, Brazil; (L.d.C.M.); (H.R.P.); (H.d.O.B.); (N.L.P.); (Y.O.S.R.)
| | - Lucas Cabrera Monteiro
- Programa de Pós-Graduação em Ecologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília 70910-900, DF, Brazil;
| | - Ygor Oliveira Sarmento Rodrigues
- Programa de Pós-Graduação em Ciências Ambientais, Faculdade UnB Planaltina, Universidade de Brasília, Planaltina 73345-010, DF, Brazil; (L.d.C.M.); (H.R.P.); (H.d.O.B.); (N.L.P.); (Y.O.S.R.)
| | - Ludgero Cardoso Galli Vieira
- Núcleo de Estudos e Pesquisas Ambientais e Limnológicas, Faculdade UnB Planaltina, Universidade de Brasília, Planaltina 73345-010, DF, Brazil;
| | | | - Jurandir Rodrigues de Souza
- Laboratório de Química Analítica e Ambiental, Instituto de Química, Universidade de Brasília, Brasília 70919-970, DF, Brazil; (J.P.R.d.S.); (J.F.P.); (J.R.d.S.)
| | - Wanderley Rodrigues Bastos
- Laboratório de Biogeoquímica Ambiental, Universidade Federal de Rondônia, Porto Velho 76901-000, RO, Brazil;
| | - José Garrofe Dórea
- Faculdade de Ciências da Saúde, Universidade de Brasília, Brasília 70919-970, DF, Brazil;
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Córdoba-Tovar L, Marrugo-Negrete J, Ramos Barón PA, Calao-Ramos CR, Díez S. Toxic metal(loids) levels in the aquatic environment and nuclear alterations in fish in a tropical river impacted by gold mining. ENVIRONMENTAL RESEARCH 2023; 224:115517. [PMID: 36804317 DOI: 10.1016/j.envres.2023.115517] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
The Atrato River basin was protected by Colombian law due to anthropogenic impacts, mainly from illegal gold mining, which triggered a critical environmental health problem. In this study we quantified mercury (Hg), methylmercury (MeHg) and arsenic (As) concentrations in aquatic environmental matrices, and explored for the first-time nuclear degenerations in fish from the Atrato River. The median concentrations (μg/kg) for T-Hg, MeHg and As in fish were 195.0, 175.5, and 30.0; in sediments (μg/kg) 165.5, 13.8 and 3.1; and in water (ng/L), 154.7 for T-Hg and 2.1 for As. A 38% and 10% of the fish exceeded the WHO limit for the protection of populations at risk (200 μg Hg/kg) and for human consumption (500 μg Hg/kg); while As concentrations were below the international standard (1000 μg/kg) in all fish. The percentage of MeHg was 89.7% and the highest accumulation was observed in carnivorous fish (336.3 ± 245.6 μg/kg, p < 0.05) of high consumption, indicating risk to human health. In water, T-Hg concentrations exceeded the threshold effect value of 12 ng/L, whereas As concentrations were below the threshold of 10,000 ng/L, established by USEPA. On the contrary, 33% of the sediments exceeded the quality standard of 200 μg/kg for Hg. We found that Prochilodus magdalenae was the species with the highest susceptibility to nuclear alterations in its order, nuclear bud (CNB, 3.7 ± 5.4%), micronuclei (MN, 1.6 ± 2.5%) and binucleated cells (BC, 1.6 ± 2.3%). These results indicate that the species appears to be a good predictor of genotoxicity in the Atrato River. Fulton's condition factor (K) indicated that 31.7% of the fishes had poor growth condition, suggesting that the Atrato River basin needs to be monitored and restored in accordance with the agreements reached in the Minamata Convention on Mercury.
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Affiliation(s)
- Leonomir Córdoba-Tovar
- Pontificia Universidad Javeriana, Facultad de Estudios Ambientales y Rurales, Transversal 4#42-00, Bogotá, DC, Colombia; Environmental Toxicology and Natural Resources Group, Universidad Tecnológica del Chocó, Quibdó, Choco, A.A. 292, Colombia
| | | | - Pablo Andrés Ramos Barón
- Pontificia Universidad Javeriana, Facultad de Estudios Ambientales y Rurales, Transversal 4#42-00, Bogotá, DC, Colombia
| | - Clelia Rosa Calao-Ramos
- Universidad de Córdoba, Facultad de Ciencias de la Salud, Programa de Bacteriología, Cra 6 # 76 - 103, Montería, 230002, Córdoba, Colombia
| | - Sergi Díez
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, E-08034, Barcelona, Spain.
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Córdoba-Tovar L, Marrugo-Negrete J, Barón PR, Díez S. Drivers of biomagnification of Hg, As and Se in aquatic food webs: A review. ENVIRONMENTAL RESEARCH 2022; 204:112226. [PMID: 34717950 DOI: 10.1016/j.envres.2021.112226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/05/2021] [Accepted: 10/13/2021] [Indexed: 05/09/2023]
Abstract
Biomagnification of trace elements is increasingly evident in aquatic ecosystems. In this review we investigate the drivers of biomagnification of mercury (Hg), arsenic (As) and selenium (Se) in aquatic food webs. Despite Hg, As and Se biomagnify in food webs, the biomagnification potential of Hg is much higher than that of As and Se. The slope of trophic increase of Hg is consistent between temperate (0.20), tropical (0.22) and Arctic (0.22) ecosystems. Se exerts a mitigating role against Hg toxicity but desired maximum and minimum concentrations are unknown. Environmental (e.g. latitude, temperature and physicochemical characteristics) and ecological factors (e.g. trophic structure composition and food zone) can substantially influence the biomagnification process these metal (oids). Besides the level of bioaccumulated concentration, biomagnification depends on the biology, ecology and physiology of the organisms that play a key role in this process. However, it may be necessary to determine strictly biological, physiological and environmental factors that could modulate the concentrations of As and Se in particular. The information presented here should provide clues for research that include under-researched variables. Finally, we suggest that biomagnification be incorporated into environmental management policies, mainly in risk assessment, monitoring and environmental protection methods.
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Affiliation(s)
- Leonomir Córdoba-Tovar
- Universidad Tecnólogica del Chocó, Facultad de Ciencias Naturales, Grupo de Investigación Recursos Naturales y Toxicología Ambiental, Quibdó, Chocó, A.A 292, Colombia; Universidad de Córdoba, Cra 6 # 76 - 103, Montería, 230002, Córdoba, Colombia
| | | | - Pablo Ramos Barón
- Pontificia Universidad Javeriana, Facultad de Estudios Ambientales y Rurales, Transversal 4#42-00, Bogotá, D.C, Colombia
| | - Sergi Díez
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, E-08034, Barcelona, Spain.
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Laffont L, Menges J, Goix S, Gentès S, Maury-Brachet R, Sonke JE, Legeay A, Gonzalez P, Rinaldo R, Maurice L. Hg concentrations and stable isotope variations in tropical fish species of a gold-mining-impacted watershed in French Guiana. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:60609-60621. [PMID: 34159470 DOI: 10.1007/s11356-021-14858-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 06/08/2021] [Indexed: 06/13/2023]
Abstract
The aim of the study was to determine if gold-mining activities could impact the mercury (Hg) concentrations and isotopic signatures in freshwater fish consumed by riparian people in French Guiana. Total Hg, MeHg concentrations, and Hg stable isotopes ratios were analyzed in fish muscles from different species belonging to three feeding patterns (herbivorous, periphytophagous, and piscivorous). We compared tributaries impacted by gold-mining activities (Camopi, CR) with a pristine area upstream (Trois-Sauts, TS), along the Oyapock River. We measured δ15N and δ 13C to examine whether Hg patterns are due to differences in trophic level. Differences in δ 15N and δ 13C values between both studied sites were only observed for periphytophagous fish, due to difference of CN baselines, with enriched values at TS. Total Hg concentrations and Hg stable isotope signatures showed that Hg accumulated in fish from both areas has undergone different biogeochemical processes. Δ199Hg variation in fish (-0.5 to 0.2‰) was higher than the ecosystem baseline defined by a Δ199Hg of -0.66‰ in sediments, and suggested limited aqueous photochemical MeHg degradation. Photochemistry-corrected δ202Hg in fish was 0.7‰ higher than the baseline, consistent with biophysical and chemical isotope fractionation in the aquatic environment. While THg concentrations in periphytophagous fish were higher in the gold-mining area, disturbed by inputs of suspended particles, than in TS, the ensemble of Hg isotope shifts in fish is affected by the difference of biotic (methylation/demethylation) and abiotic (photochemistry) processes between both areas and did therefore not allow to resolve the contribution of gold-mining-related liquid Hg(0) in fish tissues. Mercury isotopes of MeHg in fish and lower trophic level organisms can be complementary to light stable isotope tracers.
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Affiliation(s)
- Laure Laffont
- Geosciences Environnement Toulouse, CNRS/IRD/CNES/Université Toulouse III, 14 avenue Edouard Belin, 31400, Toulouse, France.
| | - Johanna Menges
- Section 4.6, Geomorphology, GFZ-German Research Centre for Geosciences, 14473, Potsdam, Germany
| | - Sylvaine Goix
- Geosciences Environnement Toulouse, CNRS/IRD/CNES/Université Toulouse III, 14 avenue Edouard Belin, 31400, Toulouse, France
- University Toulouse III, 14 avenue Edouard Belin, 31400, Toulouse, France
| | - Sophie Gentès
- EPOC, EPHE, Univ. Bordeaux, CNRS, 33120, Arcachon, France
| | | | - Jeroen E Sonke
- Geosciences Environnement Toulouse, CNRS/IRD/CNES/Université Toulouse III, 14 avenue Edouard Belin, 31400, Toulouse, France
| | - Alexia Legeay
- EPOC, EPHE, Univ. Bordeaux, CNRS, 33120, Arcachon, France
| | | | - Raphaëlle Rinaldo
- Parc Amazonien de Guyane, 1 rue Lederson, 97354, Remire-Montjoly, France
| | - Laurence Maurice
- Geosciences Environnement Toulouse, CNRS/IRD/CNES/Université Toulouse III, 14 avenue Edouard Belin, 31400, Toulouse, France.
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Azevedo LS, Pestana IA, Almeida MG, Ferreira da Costa Nery A, Bastos WR, Magalhães Souza CM. Mercury biomagnification in an ichthyic food chain of an amazon floodplain lake (Puruzinho Lake): Influence of seasonality and food chain modeling. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 207:111249. [PMID: 32890953 DOI: 10.1016/j.ecoenv.2020.111249] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 08/22/2020] [Accepted: 08/25/2020] [Indexed: 06/11/2023]
Abstract
Mercury (Hg) biomagnification in fish food chains is a relevant subject due to the high fish consumption of the Amazonian population and the high toxicity of this metal. In the Amazon, floodplain lake hydrodynamics change considerably along the four seasons of the hydrological cycle (rising water, high water, falling water and low water), which can influence Hg bioaccumulation in fish. The main aim of this study was to evaluate if Hg biomagnification is influenced by seasonality in a floodplain lake (Puruzinho Lake) in the Brazilian Amazon. Additionally, the influence of food chain modeling on measurement of Hg biomagnification was tested. Hg concentrations and stable isotope signatures (carbon and nitrogen) were estimated in four species, Mylossoma duriventre (herbivorous), Prochilodus nigricans (detritivorous), Cichla pleiozona (piscivorous) and Serrasalmus rhombeus (piscivorous). The "trophic magnification slope" (TMS) of the food chain composed by the four species was calculated and compared among the four seasons. There was no significant seasonal variation in TMS among rising water, high water, falling water and low water seasons (p = 0.08), suggesting that Hg biomagnification does not change seasonally. However, there was significant variation in TMS among different food chain models. Lower TMS was observed in a food chain composed of detritivorous and piscivorous fish (0.20) in comparison with a food chain composed of the four species (0.26). The results indicate food chain modeling influences TMS results.
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Affiliation(s)
- Lucas Silva Azevedo
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Parque Califórnia, CEP, Campos Dos Goytacazes, Rio de Janeiro, RJ, 28013-602, Brazil.
| | - Inácio Abreu Pestana
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Parque Califórnia, CEP, Campos Dos Goytacazes, Rio de Janeiro, RJ, 28013-602, Brazil
| | - Marcelo Gomes Almeida
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Parque Califórnia, CEP, Campos Dos Goytacazes, Rio de Janeiro, RJ, 28013-602, Brazil
| | - Adriely Ferreira da Costa Nery
- Laboratório de Biogeoquímica Ambiental, Universidade Federal de Rondônia, Olaria, CEP, 76815-800, Porto Velho, Rondônia, RO, Brazil
| | - Wanderley Rodrigues Bastos
- Laboratório de Biogeoquímica Ambiental, Universidade Federal de Rondônia, Olaria, CEP, 76815-800, Porto Velho, Rondônia, RO, Brazil
| | - Cristina Maria Magalhães Souza
- Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual Do Norte Fluminense Darcy Ribeiro, Parque Califórnia, CEP, Campos Dos Goytacazes, Rio de Janeiro, RJ, 28013-602, Brazil
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Chiang G, Kidd KA, Díaz-Jaramillo M, Espejo W, Bahamonde P, O'Driscoll NJ, Munkittrick KR. Methylmercury biomagnification in coastal aquatic food webs from western Patagonia and western Antarctic Peninsula. CHEMOSPHERE 2021; 262:128360. [PMID: 33182080 DOI: 10.1016/j.chemosphere.2020.128360] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/09/2020] [Accepted: 09/12/2020] [Indexed: 06/11/2023]
Abstract
Mercury (Hg) is a global pollutant of concern because its organic and more toxic form, methylHg (MeHg), bioaccumulates and biomagnifies through aquatic food webs to levels that affect the health of fish and fish consumers, including humans. Although much is known about trophic transfer of MeHg in aquatic food webs at temperate latitudes in the northern hemisphere, it is unclear whether its fate is similar in biota from coastal zones of the southeastern Pacific. To assess this gap, MeHg, total Hg and food web structure (using δ13C and δ15N) were measured in marine macroinvertebrates, fishes, birds, and mammals from Patagonian fjords and the Antarctic Peninsula. Trophic magnification slopes (TMS; log MeHg versus δ15N) for coastal food webs of Patagonia were high when compared with studies in the northern hemisphere, and significantly higher near freshwater inputs as compared to offshore sites (0.244 vs 0.192). Similarly, in Antarctica, the site closer to glacial inputs had a significantly higher TMS than the one in the Southern Shetland Islands (0.132 vs 0.073). Composition of the food web also had an influence, as the TMS increased when mammals and seabirds were excluded (0.132-0.221) at a coastal site. This study found that both the composition of the food web and the proximity to freshwater outflows are key factors influencing the TMS for MeHg in Patagonian and Antarctic food webs.
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Affiliation(s)
- Gustavo Chiang
- CAPES, Center for Applied Ecology & Sustainability, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O'Higgins 340, Santiago, Chile.
| | - Karen A Kidd
- Department of Biology and School of Earth, Environment and Society, McMaster University, 1280, Main Street W., Hamilton, ON, L8S 4K1, Canada
| | - Mauricio Díaz-Jaramillo
- IIMyC, Estresores Múltiples en El Ambiente (EMA), FCEyN UNMdP CONICET, Funes 3350 (B7602AYL), Mar Del Plata, 7600, Argentina
| | - Winfred Espejo
- Department of Animal Science, Faculty of Veterinarian Sciences, Universidad de Concepción, Av. Vicente Méndez 595, Chillán, Chile
| | - Paulina Bahamonde
- Núcleo Milenio INVASAL, Concepción, Chile; HUB AMBIENTAL UPLA - Centro de Estudios Avanzado, Universidad de Playa Ancha, Valparaíso, Chile
| | - Nelson J O'Driscoll
- Department of Earth & Environmental Sciences, Acadia University, Wolfville, NS, Canada
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Govaerts A, Verhaert V, Covaci A, Jaspers VLB, Berg OK, Addo-Bediako A, Jooste A, Bervoets L. Distribution and bioaccumulation of POPs and mercury in the Ga-Selati River (South Africa) and the rivers Gudbrandsdalslågen and Rena (Norway). ENVIRONMENT INTERNATIONAL 2018; 121:1319-1330. [PMID: 30413296 DOI: 10.1016/j.envint.2018.10.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 10/26/2018] [Accepted: 10/29/2018] [Indexed: 06/08/2023]
Abstract
Biomagnification of Hg and persistent organic pollutants (POPs: polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), polybrominated diphenyl ethers (PBDEs)) in aquatic food chains can lead to high pollutant concentrations in top predators, including humans. Despite this threat to human health, research concerning bioaccumulation is still underrepresented in the southern hemisphere and in (sub)arctic and (sub)tropical areas, emphasizing the need for research in these locations. In this study, samples of water, sediment and aquatic biota were analyzed to determine concentrations of POPs and total mercury (THg) in the Ga-Selati river (South Africa) and two rivers Rena and Gudbrandsdalslågen in Norway. Trophic magnification factors (TMFs) were determined to evaluate and compare the biomagnification and the threat to human health due to consumption of the fish was assessed. Concentrations of POPs in sediment and biota samples were generally low except for relatively high concentrations of ∑DDX (dichlorodiphenyltrichloroethane and metabolites) in aquatic biota from the Ga-Selati river (ranging from 1.9 to 133 ng/g ww in invertebrates and 1.9 to 5643 ng/g ww in fish). Dissolved THg concentrations were high in the Ga-Selati river (ranging from 0.009 to 0.036 μg/l) but THg concentrations in sediment and biota were low in studied rivers compared to other studies. Biomagnification occurred for THg, several DDT-metabolites and PCB compounds, TN and CN. Biomagnification of p,p'-DDT and THg differed significantly between the two countries, supporting existing patterns found in literature, although more data is needed to attribute these differences to climatic or other factors. Concentrations in fish from the rivers Ga-Selati and Rena were under the threshold levels reported for THg and POPs, but caution should be taken when consuming Northern pike (Esox Lucius) from the subarctic river Gudbrandsdalslågen, to avoid harmful effects due to both elevated THg and PBDE exposure.
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Affiliation(s)
- Alison Govaerts
- Laboratory of Systemic, Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan, 171 2020 Antwerp, Belgium
| | - Vera Verhaert
- Laboratory of Systemic, Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan, 171 2020 Antwerp, Belgium
| | - Adrian Covaci
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk-Antwerp, Belgium
| | - Veerle L B Jaspers
- Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Ole Kristian Berg
- Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Abraham Addo-Bediako
- Department of Biodiversity, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
| | - Antoinette Jooste
- Department of Biodiversity, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
| | - Lieven Bervoets
- Laboratory of Systemic, Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan, 171 2020 Antwerp, Belgium.
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Liu H, Liu G, Wang S, Zhou C, Yuan Z, Da C. Distribution of heavy metals, stable isotope ratios (δ 13C and δ 15N) and risk assessment of fish from the Yellow River Estuary, China. CHEMOSPHERE 2018; 208:731-739. [PMID: 29894975 DOI: 10.1016/j.chemosphere.2018.06.028] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 05/19/2018] [Accepted: 06/04/2018] [Indexed: 06/08/2023]
Abstract
This study measured the concentrations of eight heavy metals, including copper (Cu), zinc (Zn), lead (Pb), chromium (Cr), cadmium (Cd), iron (Fe), manganese (Mn) and nickel (Ni), and the stable isotope ratios of δ13C and δ15N in 129 fish samples collected from the Yellow River Estuary (YRE) of China. Accumulation characteristics and possible sources of these heavy metals (HMs) were analyzed. The levels of HMs presented high variations among sampling sites, higher concentrations of ∑HMs were observed at the sites closest to the estuary. Cu and Cd in fishes of the YRE were much higher than those found in the fishes of other rivers of China. Furthermore, the mean concentrations of Cu, Zn, Pb, Cr and Cd were also significantly higher than those measured in the fishes of the same region twenty years ago. According to the results of correlation analysis and principal components analysis (PCA), Pb, Cr, Fe, Mn and Ni might be originated from similar sources. The values of δ13C and δ15N presented high variation in fishes, indicating a wide range of energy sources and trophic status of the investigated fish species. The mean concentrations of Pb, Cr and Cd in fishes were all lower than the recommended values enacted by the Chinese government. The human health risk assessment showed that the estimated daily intake (EDI) of these HMs did not exceed the permissible tolerable daily intake (PTDI) and oral reference dose (RfD), indicating a situation of no potential health risk for consumption of these fish species.
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Affiliation(s)
- Houqi Liu
- Suzhou Institute for Advanced Study, USTC, Suzhou, Jiangsu 215123, PR China; CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China; Advanced Laboratory for Environmental Research and Technology, Joint Advanced Research Center, USTC-City U, Suzhou, Jiangsu 215123, China
| | - Guijian Liu
- Suzhou Institute for Advanced Study, USTC, Suzhou, Jiangsu 215123, PR China; CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China; Advanced Laboratory for Environmental Research and Technology, Joint Advanced Research Center, USTC-City U, Suzhou, Jiangsu 215123, China.
| | - Shanshan Wang
- Suzhou Institute for Advanced Study, USTC, Suzhou, Jiangsu 215123, PR China; CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China; Advanced Laboratory for Environmental Research and Technology, Joint Advanced Research Center, USTC-City U, Suzhou, Jiangsu 215123, China
| | - Chuncai Zhou
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Zijiao Yuan
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Chunnian Da
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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9
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Jiang Z, Xu N, Liu B, Zhou L, Wang J, Wang C, Dai B, Xiong W. Metal concentrations and risk assessment in water, sediment and economic fish species with various habitat preferences and trophic guilds from Lake Caizi, Southeast China. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 157:1-8. [PMID: 29605640 DOI: 10.1016/j.ecoenv.2018.03.078] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/25/2018] [Accepted: 03/27/2018] [Indexed: 06/08/2023]
Abstract
Despite the potential emissions of heavy metal pollution in Lake Caizi due to extensive agriculture, urban growth and fishing activities, the risk posed by metal concentrations to aquatic environments and human populations has not yet been studied. In this study we compared the concentrations of Hg, As, Pb, Cd, Cr, Cu and Zn in water, sediment, and economic fish species with different habitat preferences and trophic guilds across important fishery areas in Lake Caizi, located on the northern shore of the Yangtze River, Southeast China. The concentrations of Cr in water were found approximately 6 times higher than the safety thresholds established by international legislation. Cr, Zn, As and Cd concentrations in sediments surpassed the background values for Yangtze River basin in Anhui Province. However, all the studied fish species in Lake Caizi had metal concentrations lower than legislation thresholds established by China and international organizations. Heavy metal concentrations were found to be significantly higher in demersal (inhabiting near the sediments) and piscivorous (possessing higher trophic level) fishes than in pelagic/benthopelagic (inhabiting the upper and lower water column) and herbivorous/planktivorous (possessing lower trophic level) fishes. Our finding demonstrated that the metal concentrations in fishes are simultaneously influenced by the habitat and bio-accumulation through the food chain. According to target hazard quotient (THQ) calculations for heavy metal contents in the muscles of fish species, all the determined heavy metals gave THQ values lower than 1, suggesting the inexistence of health risks from the intake of fishes from Lake Caizi.
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Affiliation(s)
- Zhongguan Jiang
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China
| | - Nan Xu
- Shenzhen Key Laboratory for Heavy Metal Pollution Control and Reutilization, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, PR China
| | - Bingxiang Liu
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China.
| | - Lizhi Zhou
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China
| | - Juan Wang
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China
| | - Chao Wang
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China
| | - Bingguo Dai
- School of Resources and Environmental Engineering, Anhui University, Hefei 230601, PR China
| | - Wen Xiong
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, PR China
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10
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Fuentes-Gandara F, Herrera-Herrera C, Pinedo-Hernández J, Marrugo-Negrete J, Díez S. Assessment of human health risk associated with methylmercury in the imported fish marketed in the Caribbean. ENVIRONMENTAL RESEARCH 2018; 165:324-329. [PMID: 29778966 DOI: 10.1016/j.envres.2018.05.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/05/2018] [Accepted: 05/03/2018] [Indexed: 06/08/2023]
Abstract
The decline in marine and freshwaters catches in recent years in Colombia has led to a change in dietary habits, with an increase in the purchase and consumption of imported fish. This is of particular concern as fish are sometimes caught in mercury-contaminated waters, and are subsequently sold canned or uncanned. In addition, canned tuna has received little attention as it is widely assumed that concentrations are low. In this study, total mercury (THg) and methylmercury (MeHg) concentrations were evaluated in three imported fish species marketed in Colombia, Prochilodus lineatus, Prochilodus reticulatus, and Pangasianodon hypophthalmus, plus four brands of canned tuna and one of sardines. One brand of tuna showed the highest mean concentrations of THg (0.543 ± 0.237 μg/g, wet weight, ww) and MeHg (0.518 ± 0.337 μg/g ww), while concentrations in P. hypophthalmus were approximately 30 times lower (≈0.02 µg/g ww). The estimated weekly intake (EWI) in children was above the provisional tolerable weekly intake (PTWI) of MeHg established by the Joint FAO/World Health Organization (WHO) Expert Committee on Food Additives (JECFA) in 2007, 1.6 μg/kg body weight (bw) per week, for all the canned tuna brands. Values for adults were below PTWI, whereas for women of childbearing age, values were above PTWI only for brand D of canned tuna. The estimate of the potential risk indicated that MeHg levels in canned tuna can generate negative effects in vulnerable groups, while the EWI of fresh fish did not pose a threat to the general population. Therefore, establishing strategies to address the high consumption of canned tuna, and continuous monitoring to control commercial food, are recommended to decrease Hg exposure.
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Affiliation(s)
- Fabio Fuentes-Gandara
- Department of Natural and Exact Sciences, Universidad de la Costa, Calle 58 Nº 55-66, 080002, Barranquilla, Colombia
| | - Claudia Herrera-Herrera
- Department of Natural and Exact Sciences, Universidad de la Costa, Calle 58 Nº 55-66, 080002, Barranquilla, Colombia
| | - José Pinedo-Hernández
- Department of Chemistry, Faculty of Basic Sciences, Water, Applied and Environmental Chemistry Group, University of Córdoba, Monteria, Colombia
| | - José Marrugo-Negrete
- Department of Chemistry, Faculty of Basic Sciences, Water, Applied and Environmental Chemistry Group, University of Córdoba, Monteria, Colombia.
| | - Sergi Díez
- Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research, IDÆA-CSIC, 08034 Barcelona, Spain.
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11
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Liu Y, Liu G, Yuan Z, Liu H, Lam PKS. Heavy metals (As, Hg and V) and stable isotope ratios (δ 13C and δ 15N) in fish from Yellow River Estuary, China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 613-614:462-471. [PMID: 28918278 DOI: 10.1016/j.scitotenv.2017.09.088] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 09/08/2017] [Accepted: 09/09/2017] [Indexed: 05/25/2023]
Abstract
The Yellow River Estuary is a significant fishery, but at present there are few studies about the concentrations of arsenic (As), mercury (Hg) and vanadium (V) in fish from this area, which might cause potential health risk to fish consumers. The aim of this study was to research on the accumulation and potential sources of heavy metals in the fish of the Yellow River Estuary. Arsenic, Hg, V and stable isotope ratios (δ15N and δ13C) in 11 species of 129 fish were analyzed. Results showed that the concentrations of As and Hg were all lower than the guideline levels established by international organizations and legal limits by several countries. The mean concentrations of V in samples in this study were significantly higher than the results of previous studies on other regions. Arsenic, Hg and V significantly differed across species (P<0.05), which might be due to the different foraging habitats and dietary habits of the studied fish. Values of δ15N and δ13C in fish from the study area ranged from 5.1‰ to 14.6‰ and from -27.6‰ to -14.5‰, indicating a wide range of trophic positions and energy sources. There was evidence of bioaccumulation of Hg, which could be explained by the positive correlation between Hg concentrations and δ15N in fish. Through estimation of daily intake of inorganic As (iAs), Hg and V via fish consumption, the heavy metal contamination level of fish samples fell in an acceptable range, indicating no potentially hazardous for human health.
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Affiliation(s)
- Yuan Liu
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an 710075, China; State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Hong Kong Special Administrative Region, PR China
| | - Guijian Liu
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an 710075, China.
| | - Zijiao Yuan
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
| | - Houqi Liu
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou 215100, China
| | - Paul K S Lam
- State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Hong Kong Special Administrative Region, PR China
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12
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Liu Y, Liu G, Yuan Z, Liu H, Lam PKS. Presence of arsenic, mercury and vanadium in aquatic organisms of Laizhou Bay and their potential health risk. MARINE POLLUTION BULLETIN 2017; 125:334-340. [PMID: 28967412 DOI: 10.1016/j.marpolbul.2017.09.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 09/14/2017] [Accepted: 09/21/2017] [Indexed: 06/07/2023]
Abstract
This study aims at describing and interpreting concentrations of arsenic (As), mercury (Hg) and vanadium (V) in seven species of fish, three species of shellfish, one species of crab and two species of shrimp from the typical estuary-bay ecosystem. Arsenic, Hg and V differed among species, and the highest As, Hg and V were observed in shellfish. The stable nitrogen (δ15N) and carbon (δ13C) isotopes were determined to investigate the trophic interactions between fluctuating environment and aquatic species. Arsenic concentrations in samples were found negatively correlated with δ15N, implying biodilution effect of As through the food web, while Hg concentrations in samples were positively correlated with δ15N, indicating their biomagnification effect. The estimated daily intake values of Hg and V in this study were all below the oral reference dose. However, elevated As intakes of some aquatic organisms suggested a potential risk for frequent consumers.
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Affiliation(s)
- Yuan Liu
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an 710075, China; State Key Laboratory in Marine Pollution, Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Guijian Liu
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an 710075, China.
| | - Zijiao Yuan
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
| | - Houqi Liu
- CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou 215123, China
| | - Paul K S Lam
- State Key Laboratory in Marine Pollution, Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China
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13
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Azevedo-Silva CE, Almeida R, Carvalho DP, Ometto JPHB, de Camargo PB, Dorneles PR, Azeredo A, Bastos WR, Malm O, Torres JPM. Mercury biomagnification and the trophic structure of the ichthyofauna from a remote lake in the Brazilian Amazon. ENVIRONMENTAL RESEARCH 2016; 151:286-296. [PMID: 27517756 DOI: 10.1016/j.envres.2016.07.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 07/20/2016] [Accepted: 07/23/2016] [Indexed: 06/06/2023]
Abstract
The present study assesses mercury biomagnification and the trophic structure of the ichthyofauna from the Puruzinho Lake, Brazilian Amazon. In addition to mercury determination, the investigation comprised the calculation of Trophic Magnification Factor (TMF) and Trophic Magnification Slope (TMS), through the measurements of stable isotopes of carbon (δ13C) and nitrogen (δ15N) in fish samples. These assessments were executed in two different scenarios, i.e., considering (1) all fish species or (2) only the resident fish (excluding the migratory species). Bottom litter, superficial sediment and seston were the sources used for generating the trophic position (TP) data used in the calculation of the TMF. Samples from 84 fish were analysed, comprising 13 species, which were categorized into four trophic guilds: iliophagous, planktivorous, omnivorous and piscivorous fish. The δ13C values pointed to the separation of the ichthyofauna into two groups. One group comprised iliophagous and planktivorous species, which are linked to the food chains of phytoplankton and detritus. The other group was composed by omnivorous and piscivorous fish, which are associated to the trophic webs of phytoplankton, bottom litter, detritus, periphyton, as well as to food chains of igapó (blackwater-flooded Amazonian forests). The TP values suggest that the ichthyofauna from the Puruzinho Lake is part of a short food web, with three well-characterized trophic levels. Mercury concentrations and δ13C values point to multiple sources for Hg input and transfer. The similarity in Hg levels and TP values between piscivorous and planktivorous fish suggests a comparable efficiency for the transfer of this metal through pelagic and littoral food chains. Regarding the two abovementioned scenarios, i.e., considering (1) the entire ichthyofauna and (2) only the resident species, the TMF values were 5.25 and 4.49, as well as the TMS values were 0.21 and 0.19, respectively. These findings confirm that Hg biomagnifies through the food web of Puruzinho Lake ichthyofauna. The migratory species did not significantly change mercury biomagnification rate in Puruzinho Lake; however, they may play a relevant role in Hg transport. The biomagnification rate (TMS value) in Puruzinho Lake was higher than the average values for its latitude, being comparable to TMS values of temperate and polar systems (marine and freshwater environments).
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Affiliation(s)
- Claudio Eduardo Azevedo-Silva
- Laboratório de Radioisótopos Eduardo Penna, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Cidade Universitária, Av. Carlos Chagas Filho s/n, bloco G, Sala 60, Subsolo, Ilha do Fundão, Rio de Janeiro, RJ, Brazil.
| | - Ronaldo Almeida
- Instituto Natureza e Cultura, Universidade Federal do Amazonas, Rua 1 de Maio. Colegiado de Ciências Agrárias, Benjamin Constant, Colônia, AM, Brazil
| | - Dario P Carvalho
- Laboratório de Radioisótopos Eduardo Penna, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Cidade Universitária, Av. Carlos Chagas Filho s/n, bloco G, Sala 60, Subsolo, Ilha do Fundão, Rio de Janeiro, RJ, Brazil
| | - Jean P H B Ometto
- Instituto Nacional de Pesquisas Espaciais, Centro de Ciências do Sistema Terrestre, Avenida dos Astronautas, 1758, Jardim da Granja, São José dos Campos, SP, Brazil
| | - Plínio B de Camargo
- Laboratório de Ecologia Isotópica, Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Avenida Centenário, 303, São Dimas, Piracicaba, SP, Brazil
| | - Paulo R Dorneles
- Laboratório de Radioisótopos Eduardo Penna, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Cidade Universitária, Av. Carlos Chagas Filho s/n, bloco G, Sala 60, Subsolo, Ilha do Fundão, Rio de Janeiro, RJ, Brazil
| | - Antonio Azeredo
- Núcleo de Estudos de Saúde Coletiva, Universidade Federal do Rio de Janeiro, Avenida Horácio Macedo, S/N, Ilha do Fundão, Rio de Janeiro, RJ, Brazil
| | - Wanderley R Bastos
- Laboratório de Biogeoquímica Ambiental - Universidade Federal de Rondônia, Br 364km 9,5. Sentido Acre, Porto Velho, RO, Brazil
| | - Olaf Malm
- Laboratório de Radioisótopos Eduardo Penna, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Cidade Universitária, Av. Carlos Chagas Filho s/n, bloco G, Sala 60, Subsolo, Ilha do Fundão, Rio de Janeiro, RJ, Brazil
| | - João P M Torres
- Laboratório de Radioisótopos Eduardo Penna, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Cidade Universitária, Av. Carlos Chagas Filho s/n, bloco G, Sala 60, Subsolo, Ilha do Fundão, Rio de Janeiro, RJ, Brazil
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14
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Donald DB, Wissel B, Anas MUM. Species-specific mercury bioaccumulation in a diverse fish community. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2015; 34:2846-2855. [PMID: 26113505 DOI: 10.1002/etc.3130] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 04/29/2015] [Accepted: 06/22/2015] [Indexed: 06/04/2023]
Abstract
Mercury bioaccumulation models developed for fish provide insight into the sources and transfer of Hg within ecosystems. Mercury concentrations were assessed for 16 fish species of the western reach of Lake Diefenbaker, Saskatchewan, Canada. For top predators (northern pike, Esox Lucius; walleye, Sander vitreum), Hg concentrations were positively correlated to δ(15)N, and δ(15)N to fish age, suggesting that throughout life these fish fed on organisms with increasingly higher trophic values and Hg concentrations. However, fish mass and/or age were the principal parameters related to Hg concentrations for most species. For 9 common species combined, individual variation in Hg concentration was explained in declining order of importance by fish mass, trophic position (δ(15)N), and fish age. Delta (15)N value was not the leading variable related to Hg concentration for the assemblage, probably because of the longevity of lower--trophic-level species (3 species ≥ 20 yr), substantial overlap in Hg concentration and δ(15)N values for large-bodied fish up to 3000 g, and complex relationships between Hg concentration and δ(15)N among species. These results suggest that the quantity of food (and Hg) consumed each year and converted to fish mass, the quantity of Hg bioaccumulated over years and decades, and trophic position were significant determinants of Hg concentration in Lake Diefenbaker fish.
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Affiliation(s)
| | - Björn Wissel
- Department of Biology, University of Regina, Regina, Saskatchewan, Canada
| | - M U Mohamed Anas
- Department of Biology, University of Regina, Regina, Saskatchewan, Canada
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15
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Bhagat J, Ingole BS. Genotoxic potency of mercuric chloride in gill cells of marine gastropod Planaxis sulcatus using comet assay. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:10758-10768. [PMID: 25758417 DOI: 10.1007/s11356-015-4263-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 02/19/2015] [Indexed: 06/04/2023]
Abstract
In vivo and in vitro exposures were used to investigate the genotoxicity of mercuric chloride (HgCl2) to the marine snail, Planaxis sulcatus. The comet assay protocol was validated on gill cells exposed in vitro to hydrogen peroxide (H2O2, 0-50 μM). Snails were exposed in vivo for 96 h to HgCl2 (10, 20, 50, and 100 μg/l). Our results showed significant concentration-dependent increase in the tail DNA (TDNA) and olive tail moment (OTM) in exposed snails for all doses compared with controls. In vitro exposure to HgCl2 (10-100 μg/l) resulted in significantly higher values for TDNA at all concentrations. Our results showed that DNA damage increased in the gill cell with increasing exposure time. This study demonstrates the usefulness of comet assay for detection of DNA damage after exposure to HgCl2 and the sensitivity of marine snail P. sulcatus as a good candidate species for metal pollution.
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Affiliation(s)
- J Bhagat
- Biological Oceanographic Division, CSIR-National Institute of Oceanography, Dona Paula, Goa, 403004, India,
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16
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Razavi NR, Qu M, Jin B, Ren W, Wang Y, Campbell LM. Mercury biomagnification in subtropical reservoir fishes of eastern China. ECOTOXICOLOGY (LONDON, ENGLAND) 2014; 23:133-146. [PMID: 24337794 DOI: 10.1007/s10646-013-1158-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 12/04/2013] [Indexed: 06/03/2023]
Abstract
Little is known about mercury (Hg) biomagnification in the subtropics, aquatic systems with high species diversity resulting in complex food webs. High atmospheric Hg emissions and ubiquitous reservoir fisheries may lead to elevated Hg bioaccumulation in Chinese freshwater fishes. However, stocking practices using fast-growing species can result in low fish total Hg (THg) concentrations. Here, we describe Hg transfer within the fish food web of a large subtropical reservoir, Qiandao Hu (Xin'anjiang reservoir) situated in eastern China. We measured food web Hg biomagnification and THg concentrations in 33 species of stocked and wild fishes. Mercury concentrations in most fishes were low, though we also found high Hg concentrations in wild top predators. The food web structure, assessed using stable isotopes of carbon (δ(13)C) and nitrogen (δ(15)N), demonstrated a high degree of omnivory and a long food chain. THg concentrations were highly correlated with fish δ(15)N values. The regression of log10THg against δ(15)N revealed the overall Hg biomagnification rate was low. This study shows that where long food chains exist in subtropical reservoirs, elevated Hg accumulation in top predators can occur despite a low Hg biomagnification rate.
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Affiliation(s)
- N Roxanna Razavi
- Department of Biology, Queen's University, Kingston, ON, K7L 3N6, Canada,
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17
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Arcagni M, Campbell L, Arribére MA, Marvin-Dipasquale M, Rizzo A, Ribeiro Guevara S. Differential mercury transfer in the aquatic food web of a double basined lake associated with selenium and habitat. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 454-455:170-180. [PMID: 23542490 DOI: 10.1016/j.scitotenv.2013.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Revised: 03/01/2013] [Accepted: 03/02/2013] [Indexed: 06/02/2023]
Abstract
Food web trophodynamics of total mercury (THg) and selenium (Se) were assessed for the double-basined ultraoligotrophic system of Lake Moreno, Patagonia. Each basin has differing proportions of littoral and pelagic habitats, thereby providing an opportunity to assess the importance of habitat (e.g. food web structure or benthic MeHg production) in the transfer of Hg and Se to top trophic fish species. Pelagic plankton, analyzed in three size classes (10-53, 53-200, and >200 μm), had very high [THg], exceeding 200 μg g(-1) dry weight (DW) in the smallest, and a low ratio of MeHg to THg (0.1 to 3%). In contrast, [THg] in littoral macroinvertebrates showed lower values (0.3 to 1.8 μg g(-1) DW). Juvenile and small fish species feeding upon plankton had higher [THg] (0.2 to 8 μg g(-1) muscle DW) compared to large piscivore fish species (0.1 to 1.6 μg g(-1) muscle DW). Selenium concentrations exhibited a much narrower variation range than THg in the food web, varying from 0.5 to 2.7 μg g(-1) DW. Molar Se:Hg ratios exceeded 1 for the majority of organisms in both basins, with most ratios exceeding 10. Using stable nitrogen isotopes as indicator of trophic level, no significant correlations were found with [THg], [Se] or Se:Hg. The apparent lack of biomagnification trends was attributed to elevated [THg] in plankton in the inorganic form mostly, as well as the possibility of consistent Se supply reducing the biomagnification in the food web of the organic portion of THg.
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Affiliation(s)
- Marina Arcagni
- Laboratorio de Análisis por Activación Neutrónica, Centro Atómico Bariloche, CNEA, Av. Bustillo km 9.5, 8400 Bariloche, Argentina
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18
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Gentès S, Maury-Brachet R, Guyoneaud R, Monperrus M, André JM, Davail S, Legeay A. Mercury bioaccumulation along food webs in temperate aquatic ecosystems colonized by aquatic macrophytes in south western France. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2013; 91:180-187. [PMID: 23466146 DOI: 10.1016/j.ecoenv.2013.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 01/31/2013] [Accepted: 02/01/2013] [Indexed: 06/01/2023]
Abstract
Mercury (Hg) is considered as an important pollutant for aquatic systems as its organic form, methylmercury (MeHg), is easily bioaccumulated and bioamplified along food webs. In various ecosystems, aquatic periphyton associated with macrophyte was identified as an important place for Hg storage and methylation by microorganisms. Our study concerns temperate aquatic ecosystems (South Western France) colonized by invasive macrophytes and characterized by high mercury methylation potentials. This work establishes original data concerning Hg bioaccumulation in organisms (plants, crustaceans, molluscs and fish) from five contrasting ecosystems. For low trophic level species, total Hg (THg) concentrations were low (from 27±2ngTHgg(-1)dw in asiatic clam Corbicula fluminea to 418±114ngTHgg(-1)dw in crayfish Procambarus clarkii). THg concentrations in some carnivorous fish (high trophic level) were close to or exceeded the International Marketing Level (IML) with values ranging from 1049±220ngTHgg(-1)dw in pike perch muscle (Sander lucioperca) to 3910±1307ngTHgg(-1)dw in eel muscle (Anguilla Anguilla). Trophic levels for the individuals were also evaluated through stable isotope analysis, and linked to Hg concentrations of organisms. A significant Hg biomagnification (r(2)= 0.9) was observed in the Aureilhan lake, despite the absence of top predator fish. For this site, Ludwigia sp. periphyton, as an entry point of Hg into food webs, is a serious hypothesis which remains to be confirmed. This study provides a first investigation of Hg transfer in the ecosystems of south western France and allows the assessment of the risk associated with the presence of Hg in aquatic food webs.
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Affiliation(s)
- Sophie Gentès
- Equipe Environnement et Microbiologie, UMR IPREM5254, Université de Pau et des Pays de l'Adour, Bâtiment IBEAS, BP1155 F-64013 Pau Cedex, France
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19
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Reiter RJ, Rosales-Corral SA, Manchester LC, Tan DX. Peripheral reproductive organ health and melatonin: ready for prime time. Int J Mol Sci 2013; 14:7231-72. [PMID: 23549263 PMCID: PMC3645684 DOI: 10.3390/ijms14047231] [Citation(s) in RCA: 127] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Accepted: 03/27/2013] [Indexed: 12/15/2022] Open
Abstract
Melatonin has a wide variety of beneficial actions at the level of the gonads and their adnexa. Some actions are mediated via its classic membrane melatonin receptors while others seem to be receptor-independent. This review summarizes many of the published reports which confirm that melatonin, which is produced in the ovary, aids in advancing follicular maturation and preserving the integrity of the ovum prior to and at the time of ovulation. Likewise, when ova are collected for in vitro fertilization-embryo transfer, treating them with melatonin improves implantation and pregnancy rates. Melatonin synthesis as well as its receptors have also been identified in the placenta. In this organ, melatonin seems to be of particular importance for the maintenance of the optimal turnover of cells in the villous trophoblast via its ability to regulate apoptosis. For male gametes, melatonin has also proven useful in protecting them from oxidative damage and preserving their viability. Incubation of ejaculated animal sperm improves their motility and prolongs their viability. For human sperm as well, melatonin is also a valuable agent for protecting them from free radical damage. In general, the direct actions of melatonin on the gonads and adnexa of mammals indicate it is an important agent for maintaining optimal reproductive physiology.
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Affiliation(s)
- Russel J. Reiter
- Department of Cellular and Structural Biology, UT Health Science Center at San Antonio, San Antonio, TX 78229, USA; E-Mails: (S.A.R.-C.); (L.C.M.); (D.-X.T.)
| | - Sergio A. Rosales-Corral
- Department of Cellular and Structural Biology, UT Health Science Center at San Antonio, San Antonio, TX 78229, USA; E-Mails: (S.A.R.-C.); (L.C.M.); (D.-X.T.)
| | - Lucien C. Manchester
- Department of Cellular and Structural Biology, UT Health Science Center at San Antonio, San Antonio, TX 78229, USA; E-Mails: (S.A.R.-C.); (L.C.M.); (D.-X.T.)
| | - Dun-Xian Tan
- Department of Cellular and Structural Biology, UT Health Science Center at San Antonio, San Antonio, TX 78229, USA; E-Mails: (S.A.R.-C.); (L.C.M.); (D.-X.T.)
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Lavoie RA, Jardine TD, Chumchal MM, Kidd KA, Campbell LM. Biomagnification of mercury in aquatic food webs: a worldwide meta-analysis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:13385-94. [PMID: 24151937 DOI: 10.1021/es403103t] [Citation(s) in RCA: 517] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The slope of the simple linear regression between log10 transformed mercury (Hg) concentration and stable nitrogen isotope values (δ(15)N), hereafter called trophic magnification slope (TMS), from several trophic levels in a food web can represent the overall degree of Hg biomagnification. We compiled data from 69 studies that determined total Hg (THg) or methyl Hg (MeHg) TMS values in 205 aquatic food webs worldwide. Hg TMS values were compared against physicochemical and biological factors hypothesized to affect Hg biomagnification in aquatic systems. Food webs ranged across 1.7 ± 0.7 (mean ± SD) and 1.8 ± 0.8 trophic levels (calculated using δ(15)N from baseline to top predator) for THg and MeHg, respectively. The average trophic level (based on δ(15)N) of the upper-trophic-level organisms in the food web was 3.7 ± 0.8 and 3.8 ± 0.8 for THg and MeHg food webs, respectively. For MeHg, the mean TMS value was 0.24 ± 0.08 but varied from 0.08 to 0.53 and was, on average, 1.5 times higher than that for THg with a mean of 0.16 ± 0.11 (range: -0.19 to 0.48). Both THg and MeHg TMS values were significantly and positively correlated with latitude. TMS values in freshwater sites increased with dissolved organic carbon and decreased with total phosphorus and atmospheric Hg deposition. Results suggest that Hg biomagnification through food webs is highest in cold and low productivity systems; however, much of the among-system variability in TMS values remains unexplained. We identify critical data gaps and provide recommendations for future studies that would improve our understanding of global Hg biomagnification.
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Affiliation(s)
- Raphael A Lavoie
- Biology Department, Queen's University , 116 Barrie Street, Kingston, Ontario, K7L 3N6, Canada
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Kwon SY, Blum JD, Carvan MJ, Basu N, Head JA, Madenjian CP, David SR. Absence of fractionation of mercury isotopes during trophic transfer of methylmercury to freshwater fish in captivity. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:7527-34. [PMID: 22681311 PMCID: PMC4347840 DOI: 10.1021/es300794q] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
We performed two controlled experiments to determine the amount of mass-dependent and mass-independent fractionation (MDF and MIF) of methylmercury (MeHg) during trophic transfer into fish. In experiment 1, juvenile yellow perch (Perca flavescens) were raised in captivity on commercial food pellets and then their diet was either maintained on unamended food pellets (0.1 μg/g MeHg) or was switched to food pellets with 1.0 μg/g or 4.0 μg/g of added MeHg, for a period of 2 months. The difference in δ(202)Hg (MDF) and Δ(199)Hg (MIF) between fish tissues and food pellets with added MeHg was within the analytical uncertainty (δ(202)Hg, 0.07 ‰; Δ(199)Hg, 0.06 ‰), indicating no isotope fractionation. In experiment 2, lake trout (Salvelinus namaycush) were raised in captivity on food pellets and then shifted to a diet of bloater (Coregonus hoyi) for 6 months. The δ(202)Hg and Δ(199)Hg of the lake trout equaled the isotopic composition of the bloater after 6 months, reflecting reequilibration of the Hg isotopic composition of the fish to new food sources and a lack of isotope fractionation during trophic transfer. We suggest that the stable Hg isotope ratios in fish can be used to trace environmental sources of Hg in aquatic ecosystems.
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Affiliation(s)
- Sae Yun Kwon
- Department of Earth and Environmental Sciences, University of Michigan, 1100 N. University Avenue, Ann Arbor, Michigan 48109, United States.
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