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Li S, Li Z, Wu M, Zhou Y, Tang W, Zhong H. Mercury transformations in algae, plants, and animals: The occurrence, mechanisms, and gaps. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 911:168690. [PMID: 38000748 DOI: 10.1016/j.scitotenv.2023.168690] [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: 10/16/2023] [Revised: 11/16/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023]
Abstract
Mercury (Hg) is a global pollutant showing potent toxicity to living organisms. The transformations of Hg are critical to global Hg cycling and Hg exposure risks, considering Hg mobilities and toxicities vary depending on Hg speciation. Though currently well understood in ambient environments, Hg transformations are inadequately explored in non-microbial organisms. The primary drivers of in vivo Hg transformations are far from clear, and the impacts of these processes on global Hg cycling and Hg associated health risks are not well understood. This hinders a comprehensive understanding of global Hg cycling and the effective mitigation of Hg exposure risks. Here, we focused on Hg transformations in non-microbial organisms, particularly algae, plants, and animals. The process of Hg oxidation/reduction and methylation/demethylation in organisms were reviewed since these processes are the key transformations between the dominant Hg species, i.e., elemental Hg (Hg0), divalent inorganic Hg (IHgII), and methylmercury (MeHg). By summarizing the current knowledge of Hg transformations in organisms, we proposed the potential yet overlooked drivers of these processes, along with potential challenges that hinder a full understanding of in vivo Hg transformations. Knowledge summarized in this review would help achieve a comprehensive understanding of the fate and toxicity of Hg in organisms, providing a basis for predicting Hg cycles and mitigating human exposure.
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Affiliation(s)
- Shouying Li
- School of the Environment, Nanjing University, State Key Laboratory of Pollution Control and Resource Reuse, Nanjing 210023, China
| | - Zhuoran Li
- School of the Environment, Nanjing University, State Key Laboratory of Pollution Control and Resource Reuse, Nanjing 210023, China
| | - Mengjie Wu
- School of the Environment, Nanjing University, State Key Laboratory of Pollution Control and Resource Reuse, Nanjing 210023, China
| | - Yang Zhou
- School of the Environment, Nanjing University, State Key Laboratory of Pollution Control and Resource Reuse, Nanjing 210023, China
| | - Wenli Tang
- School of the Environment, Nanjing University, State Key Laboratory of Pollution Control and Resource Reuse, Nanjing 210023, China.
| | - Huan Zhong
- School of the Environment, Nanjing University, State Key Laboratory of Pollution Control and Resource Reuse, Nanjing 210023, China.
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2
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Rodrigues PDA, Ferrari RG, do Rosário DKA, de Almeida CC, Saint'Pierre TD, Hauser-Davis RA, Dos Santos LN, Conte-Junior CA. Toxic metal and metalloid contamination in seafood from an eutrophic Brazilian estuary and associated public health risks. MARINE POLLUTION BULLETIN 2022; 185:114367. [PMID: 36435023 DOI: 10.1016/j.marpolbul.2022.114367] [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: 08/02/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
Guanabara Bay (GB) is a highly contaminated estuarine system and an important fishing area in Southeastern Brazil. In this regard, knowledge concerning the association of certain contaminants in seafood to abiotic factors and human health risk assessments is still understudied. Therefore, this study aimed to quantify nine toxic elements in highly consumed crabs, shrimp, and squid, and associate the results with abiotic factors. A human health risk assessment was also performed. Our findings indicate that crabs are the main bioaccumulators. Transparency and depth were noteworthy for all three taxonomic groups. In general, contaminant concentrations were below the limits established by different international agencies, except for As, which was higher than the Brazilian limit (1 mg kg-1). However, the Hazard Index identified risks to consumer health for the ingestion of seafood. This study emphasizes the importance of jointly evaluating different toxic elements, for a more accurate health risk assessment.
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Affiliation(s)
- Paloma de Almeida Rodrigues
- Graduate Program in Veterinary Hygiene (PPGHV), Faculty of Veterinary Medicine, Fluminense Federal University (UFF), Vital Brazil Filho, Niterói, RJ 24220-000, Brazil; Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-598, Brazil; Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil.
| | - Rafaela Gomes Ferrari
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-598, Brazil; Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil; Agrarian Sciences Center, Department of Zootechnics, Federal University of Paraiba, Paraíba, Brazil
| | - Denes Kaic Alves do Rosário
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-598, Brazil; Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil
| | - Cristine Couto de Almeida
- Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-598, Brazil; Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil; National Institute of Health Quality Control, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; Graduate Program in Sanitary Surveillance (PPGVS), National Institute of Health Quality Control (INCQS), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, RJ 21040-900, Brazil
| | | | - Rachel Ann Hauser-Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (Fiocruz), 21040-360 Rio de Janeiro, Brazil.
| | - Luciano Neves Dos Santos
- Laboratory of Theoretical and Applied Ichthyology, Institute of Biosciences, Federal University of the State of Rio de Janeiro, Rio de Janeiro 22290-240, Brazil
| | - Carlos Adam Conte-Junior
- Graduate Program in Veterinary Hygiene (PPGHV), Faculty of Veterinary Medicine, Fluminense Federal University (UFF), Vital Brazil Filho, Niterói, RJ 24220-000, Brazil; Center for Food Analysis (NAL), Technological Development Support Laboratory (LADETEC), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-598, Brazil; Laboratory of Advanced Analysis in Biochemistry and Molecular Biology (LAABBM), Department of Biochemistry, Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil; National Institute of Health Quality Control, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; Graduate Program in Food Science (PPGCAL), Institute of Chemistry (IQ), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil; Graduate Program in Sanitary Surveillance (PPGVS), National Institute of Health Quality Control (INCQS), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, RJ 21040-900, Brazil; Graduate Program in Chemistry (PGQu), Institute of Chemistry (IQ), Federal University of Rio de Janeiro (UFRJ), Cidade Universitária, Rio de Janeiro, RJ 21941-909, Brazil
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Zheng J, Li C, Zheng X. Toxic effects of polystyrene microplastics on the intestine of Amphioctopus fangsiao (Mollusca: Cephalopoda): From physiological responses to underlying molecular mechanisms. CHEMOSPHERE 2022; 308:136362. [PMID: 36087715 DOI: 10.1016/j.chemosphere.2022.136362] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/29/2022] [Accepted: 09/03/2022] [Indexed: 06/15/2023]
Abstract
Microplastics are broadly used and among the most studied environmental pollutants due to their potential impacts on organisms and human health. Amphioctopus fangsiao (Cephalopoda: Octopodidae) is an important commercial species in the Pacific Northwest and is very popular among consumers owing to its rich nutritional value and fresh flavor. However, the toxic effects of microplastic exposure on A. fangsiao, including phenotypical effect and underlying molecular mechanism, remain limited. In this study, the octopus A. fangsiao were exposed to microplastics (polystyrene microplastics, Micro-PS) at concentrations of 100 and 1000 μg/L for 21 days, and then the physiological response, histopathological analysis, biomarkers of oxidative stress and glycolipid metabolism, microbiome perturbations and transcriptomic profiles in the intestines were performed. Results demonstrated that Micro-PS exposure had distinct adverse effects on the food intake of A. fangsiao. Histological analysis revealed that Micro-PS exposure has resulted in histopathological damage, thus causing early inflammation of the intestine. Oxidative stresses, metabolic disorders and microbiome perturbations were also detected in the intestine of A. fangsiao based on physiological biomarkers and microbiome analyses. Moreover, transcriptome analysis detected the differentially expressed genes (DEGs) and significantly enriched KEGG pathways in response to oxidative stress, glycolipid metabolism, DNA damage and transmembrane transport of intestinal cells, revealing distinct toxic effects at the molecular level. In summary, Micro-PS exposure has a strong impact on the intestines of A. fangsiao. For the first time, this study uses multiple approaches based on the physiological and biochemical response as well as transcriptional regulation analysis. The first assessment of the toxic impact of this species under Micro-PS exposure is also reported.
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Affiliation(s)
- Jian Zheng
- Institute of Evolution & Marine Biodiversity (IEMB), Ocean University of China, Qingdao, 266003, China; Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China
| | - Congjun Li
- Laboratory of Marine Protozoan Biodiversity and Evolution, Marine College, Shandong University, Weihai, 264209, China
| | - Xiaodong Zheng
- Institute of Evolution & Marine Biodiversity (IEMB), Ocean University of China, Qingdao, 266003, China; Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, China.
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Catry T, Vale C, Pedro P, Pereira E, Mil-Homens M, Raimundo J, Tavares D, Granadeiro JP. Elemental composition of whole body soft tissues in bivalves from the Bijagós Archipelago, Guinea-Bissau. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 288:117705. [PMID: 34247000 DOI: 10.1016/j.envpol.2021.117705] [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: 03/22/2021] [Revised: 06/11/2021] [Accepted: 07/01/2021] [Indexed: 05/22/2023]
Abstract
Marine bivalves are bioindicators of coastal environmental pollution, integrating monitoring programs worldwide. Nonetheless, the choice of particular species as an indicator requires validation, achieved by understanding the differences in element concentrations among and within species. The present study compares the chemical composition of whole body soft tissues of four common bivalve species from the Bijagós Archipelago, a pristine region of West Africa. Significant differences were recorded in the concentrations of various elements among studied species, which likely arise from species-specific uptake and bioaccumulation processes. Overall, there was a segregation between a group including the bloody cockle Senilia senilis and oyster Crassostrea tulipa (with high Cd and Zn concentrations) versus the two other species, Austromacoma nymphalis (with low Cu and high Mn, Se, Hg, Pb concentrations) and Diplodonta spp. (with high values of Cu, Al, Fe, V, Cr, Hg, Pb). C. tulipa was sampled in two different substrates (rock beds and mangrove roots), and the two groups revealed different chemical profiles, with significantly higher concentrations of P, Si, Zn and Cr and lower Cu in specimens fixed in mangrove roots. These results strongly suggest the influence of small-scale environmental variability on the accumulation of particular elements. We found extremely high Cd concentrations in S. senilis (27.1 ± 7.53 μg g-1 DW) and identified C. tulipa as another high Cd-accumulating species (ca. 10 μg g-1 DW). Our results suggest a detoxifying mechanism linked with the presence of Se to reduce the potential toxic effects of Cd in these two species. Cadmium concentrations reported for some bivalve species in this area largely exceed the maximum values proposed by the European Union, emphasizing the need for a regular contamination assessment.
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Affiliation(s)
- Teresa Catry
- CESAM - Centro de Estudos Do Ambiente e Do Mar, Faculdade de Ciências, Universidade de Lisboa, 1749-016, Lisboa, Portugal.
| | - Carlos Vale
- IPMA - Divisão de Oceanografia e Ambiente Marinho, Instituto Português Do Mar da Atmosfera, I.P., Avenida Doutor Alfredo Magalhães Ramalho, 6 1495-165, Algés, Portugal
| | - Patrícia Pedro
- CESAM - Centro de Estudos Do Ambiente e Do Mar, Faculdade de Ciências, Universidade de Lisboa, 1749-016, Lisboa, Portugal; Escola Básica Integrada de Angra do Heroísmo, 9700-179, Angra do Heroísmo, Portugal
| | - Eduarda Pereira
- Department of Chemistry, LCA and REQUIMTE, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Mário Mil-Homens
- IPMA - Divisão de Oceanografia e Ambiente Marinho, Instituto Português Do Mar da Atmosfera, I.P., Avenida Doutor Alfredo Magalhães Ramalho, 6 1495-165, Algés, Portugal
| | - Joana Raimundo
- IPMA - Divisão de Oceanografia e Ambiente Marinho, Instituto Português Do Mar da Atmosfera, I.P., Avenida Doutor Alfredo Magalhães Ramalho, 6 1495-165, Algés, Portugal
| | - Daniela Tavares
- Department of Chemistry, LCA and REQUIMTE, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - José P Granadeiro
- CESAM - Centro de Estudos Do Ambiente e Do Mar, Faculdade de Ciências, Universidade de Lisboa, 1749-016, Lisboa, Portugal
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García Barcia L, Pinzone M, Lepoint G, Pau C, Das K, Kiszka JJ. Factors affecting mercury concentrations in two oceanic cephalopods of commercial interest from the southern Caribbean. MARINE POLLUTION BULLETIN 2021; 168:112408. [PMID: 33965692 DOI: 10.1016/j.marpolbul.2021.112408] [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: 12/04/2020] [Revised: 04/10/2021] [Accepted: 04/19/2021] [Indexed: 06/12/2023]
Abstract
Mercury (Hg) concentrations have significantly increased in oceans during the last century. This element accumulates in marine fauna and can reach toxic levels. Seafood consumption is the main pathway of methylmercury (MeHg) toxicity in humans. Here, we analyzed total Hg (T-Hg) concentrations in two oceanic squid species (Ommastrephes bartramii and Thysanoteuthis rhombus) of an increasing commercial interest off Martinique, French West Indies. Stable isotope ratios reveal a negative linear relationship between δ15N or δ13C in diamondback squid samples. No significant trend was observed between δ34S values and T-Hg concentrations, contrasting with the sulfate availability and sulfide abundance hypotheses. This adds to a growing body of evidence suggesting Hg methylation via sulfate-reducing bacteria is not the main mechanism driving Hg bioavailability in mesopelagic organisms. All squid samples present T-Hg levels below the maximum safe consumption limit (0.5 ppm), deeming the establishment of a commercial squid fishery in the region safe for human consumption.
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Affiliation(s)
- Laura García Barcia
- Institute of Environment, Department of Biological Sciences, Florida International University, 3000 NE 151st, North Miami, FL 33181, USA.
| | - Marianna Pinzone
- Freshwater and Oceanic Sciences Unit of Research (FOCUS), Laboratory of Oceanology, University of Liège B6c, 11 Allée du 6 Août, 4000 Liège, Belgium
| | - Gilles Lepoint
- Freshwater and Oceanic Sciences Unit of Research (FOCUS), Laboratory of Oceanology, University of Liège B6c, 11 Allée du 6 Août, 4000 Liège, Belgium
| | - Cédric Pau
- Comité Régional des Pêches Maritimes et des Élevages Marins, Martinique, French West Indies, France
| | - Krishna Das
- Freshwater and Oceanic Sciences Unit of Research (FOCUS), Laboratory of Oceanology, University of Liège B6c, 11 Allée du 6 Août, 4000 Liège, Belgium
| | - Jeremy J Kiszka
- Institute of Environment, Department of Biological Sciences, Florida International University, 3000 NE 151st, North Miami, FL 33181, USA
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Rodrigues PDA, Ferrari RG, do Rosário DKA, Hauser-Davis RA, Lopes AP, Neves Dos Santos AFG, Conte-Junior CA. Interactions between mercury and environmental factors: A chemometric assessment in seafood from an eutrophic estuary in southeastern Brazil. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 236:105844. [PMID: 33991843 DOI: 10.1016/j.aquatox.2021.105844] [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: 02/09/2021] [Revised: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 06/12/2023]
Abstract
Guanabara Bay (GB) is an estuary in Brazil, constantly the target of pollutants, such as mercury (Hg). Thus, our study aimed to evaluate (i) total mercury (THg) content in shrimp and squid species from GB; (ii) associate THg content to contamination in swimming crabs; (iii) explore potential differences between species, and size; (iv) correlate abiotic water data to the determined THg contents; (v) verify if Hg concentrations are below acceptable limits. Swimming crabs showed greater Hg contamination compared to other species. For shrimp only biometric variables are related to Hg, while for squid, only abiotic. Only squids did not show a correlation between Hg and animal size. Finally, the detected Hg values are below the tolerable limits established by legislations. Our results indicate that the dynamics of Hg contamination differs between groups and that further studies are needed to elucidate the mechanisms that affect bioaccumulation in different species.
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Affiliation(s)
- Paloma de Almeida Rodrigues
- Molecular and Analytical Laboratory Center, Department of Food Technology, Faculty of Veterinary, Universidade Federal Fluminense, Niterói, 24230-340, Brazil.
| | - Rafaela Gomes Ferrari
- Chemistry Institute, Food Science Program, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-909, Brazil; Agrarian Sciences Center, Department of Zootechnics, Federal University of Paraiba, Paraíba, Brazil.
| | - Denes Kaic Alves do Rosário
- Chemistry Institute, Food Science Program, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-909, Brazil.
| | - Rachel Ann Hauser-Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (Fiocruz), 21040-360 Rio de Janeiro, Brazil
| | - Amanda Pontes Lopes
- Laboratory of Theoretical and Applied Ichthyology, Department of Ecology and Marine Resources, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, 22.290-240, Brazil
| | - Alejandra Filippo Gonzalez Neves Dos Santos
- Laboratory of Applied Ecology, Department of Zootechny and Sustainable Socioenvironmental Development, Fluminense Federal University (UFF), Rua Vital Brasil Filho, 64, 24230-340, Niterói, RJ, Brazil
| | - Carlos Adam Conte-Junior
- Molecular and Analytical Laboratory Center, Department of Food Technology, Faculty of Veterinary, Universidade Federal Fluminense, Niterói, 24230-340, Brazil; Chemistry Institute, Food Science Program, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-909, Brazil; National Institute of Health Quality Control, Fundação Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil
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Baptista M, Figueiredo C, Azevedo OM, Pina Rodrigues MT, Costa T, Santos MT, Queiroz N, Rosa R, Raimundo J. Tissue and gender-related differences in the elemental composition of juvenile ocean sunfish (Mola spp.). CHEMOSPHERE 2021; 272:129131. [PMID: 33592516 DOI: 10.1016/j.chemosphere.2020.129131] [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: 08/10/2020] [Revised: 11/22/2020] [Accepted: 11/25/2020] [Indexed: 06/12/2023]
Abstract
Trace elements are potentially critical contaminants of aquatic environments and fish, occupying upper trophic levels, are especially vulnerable to bioaccumulation. Due to public health concerns, however, data on the elemental composition of non-commercially important marine species are particularly lacking. Ocean sunfish (Mola spp.) attain a low commercial value worldwide and information on their elemental composition is limited. In this context, we examined the concentration of 11 trace elements (V, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Cd and Pb) in eight tissues [brain, gills, gelatin (subcutaneous white gelatinous layer), gonads, spleen, liver, white muscle and red muscle] of 20 juvenile specimens (37.5-85.5 cm TL). Gender-related differences were solely found in the gonads and chiefly for essential elements possibly as a result of their importance in embryo development. Overall, Zn and As were the elements observed in greatest concentrations in body tissues. The considerably high presence of As should be related to the dietary preferences of juvenile ocean sunfish. Considerable inter-individual variability in the concentration of each element in any given tissue was observed, especially in the liver, likely originating from the inclusion of both benthic and pelagic prey in the diet of analysed fish. Greatest elemental loads were found in the liver and gills whereas lowest loads were observed in white muscle, brain and gelatin. Moreover, a clear distinction in elemental load and elemental composition was observed between white and red muscles, likely deriving from existing divergent metabolism-related physiological adaptations linked to their different roles in locomotion.
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Affiliation(s)
- Miguel Baptista
- MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora Do Cabo, 939, 2750-374, Cascais, Portugal; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute of the Sea and Atmosphere, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal; CIBIO/InBIO, Universidade Do Porto, Campus Agrário de Vairão, 4485-661, Vairão, Portugal.
| | - Cátia Figueiredo
- MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora Do Cabo, 939, 2750-374, Cascais, Portugal; Division of Oceanography and Marine Environment, IPMA - Portuguese Institute of the Sea and Atmosphere, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal.
| | - Olga M Azevedo
- Division of Oceanography and Marine Environment, IPMA - Portuguese Institute of the Sea and Atmosphere, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal.
| | | | | | - Marta Tiago Santos
- Division of Aquaculture and Seafood Upgrading, IPMA - Portuguese Institute of the Sea and Atmosphere, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal.
| | - Nuno Queiroz
- CIBIO/InBIO, Universidade Do Porto, Campus Agrário de Vairão, 4485-661, Vairão, Portugal.
| | - Rui Rosa
- MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora Do Cabo, 939, 2750-374, Cascais, Portugal.
| | - Joana Raimundo
- Division of Oceanography and Marine Environment, IPMA - Portuguese Institute of the Sea and Atmosphere, Av. Doutor Alfredo Magalhães Ramalho, 6, 1495-165, Algés, Portugal.
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8
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Yang TT, Liu Y, Tan S, Wang WX, Wang X. The role of intestinal microbiota of the marine fish (Acanthopagrus latus) in mercury biotransformation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 277:116768. [PMID: 33647808 DOI: 10.1016/j.envpol.2021.116768] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/15/2021] [Accepted: 02/13/2021] [Indexed: 06/12/2023]
Abstract
Both inorganic (IHg) and organic (MeHg) forms of Hg can be converted into each other by methylation or demethylation, leading to changes of Hg speciation and distribution in fish. However, Hg biotransformation in fish is not thoroughly understood and the key factors in this process are unclear. The present study investigated the in vivo Hg transformation in a marine fish (Acanthopagrus latus) and explored the roles of intestinal microbiota in Hg biotransformation. We first demonstrated that Hg methylation or demethylation occurred in the fish gut under dietary IHg or MeHg exposure, respectively. The demethylation was observed to be faster than methylation, suggesting that demethylation could significantly influence the Hg speciation in fish. This study also strongly suggested that intestinal microbiota played a predominant role in Hg biotransformation and thus significantly affected the overall Hg accumulation and distribution in fish body. The richness of Hg methylators or demethylators was elevated under IHg or MeHg treatment, respectively. Furthermore, the intestinal microbiota composition was also altered by Hg exposure. This study highlights the importance of intestinal microbiota in Hg biotransformation in fish body, and suggests that modulating the gut microbiome could be a possible solution to minimize Hg contamination in fish.
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Affiliation(s)
- Tao-Tao Yang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Yong Liu
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, China
| | - Sha Tan
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resource, School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275, PR China
| | - Wen-Xiong Wang
- School of Energy and Environment, State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China; Research Centre for the Oceans and Human Health, City University of Hong Kong Shenzhen Research Institute, Shenzhen, 518057, China
| | - Xun Wang
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
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Kazama H, Yamaguchi Y, Harada Y, Kaneko N, Mizushima H, Tsuchiya K, Nemoto M, Takaku Y, Sahoo YV, Tanaka M. Mercury concentrations in the tissues of blue shark (Prionace glauca) from Sagami Bay and cephalopods from East China Sea. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 266:115192. [PMID: 32683233 DOI: 10.1016/j.envpol.2020.115192] [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: 02/24/2020] [Revised: 07/05/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
The toxicity of mercury (Hg), is generally known, and around 90% of Hg exist as methylmercury (CH3Hg+) in marine organism. Mercury concentrates in sharks and whales, which are at the top of the food chain as predators to cephalopods. The concentrations of Hg in liver and muscle of blue shark, caught in Sagami Bay, and in digestive gland and mantles of Todarodes pacificus, Sepia madokai, and Uroteuthis edulis caught in East China Sea were measured and analyzed. The Hg concentrations in the sharks, squids, and cuttlefishes determined in this study were almost same as those in the other sea regions. In addition, the Hg concentration in the blue shark was higher in the muscle than in the liver. In S. madokai and U. edulis, Hg accumulated in the digestive gland but not in the mantle. Although the Hg concentration in the digestive gland of T. pacificus is lower than those of S. madkai and U edulis, Hg concentration in the mantle is critically higher. More than 90% of Hg is present as CH3Hg+ in muscle of blue shark and mantle of T. pacificus. This feature is explained due to amino acids with the thiol groups and chain genes in the muscle of blue shark as well as in the mantle of T. pacificus. Myosin in the mantle of T. pacificus and blue shark enhances the stability of CH3Hg+. The amount of Hg in the digestive gland of T. pacificus could be too large to store; thus, Hg is released to the mantle, whereas the nutrients in the digestive gland of T. pacificus are supplied to other tissues. It is considered that the muscle fiber of T. pacificus is strong; therefore, large amounts of myosin levels may be present in T. pacificus than in S. madokai and U. edulis.
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Affiliation(s)
- Hitomi Kazama
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo, 108-8277, Japan
| | - Yoshitaka Yamaguchi
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo, 108-8277, Japan
| | - Yono Harada
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo, 108-8277, Japan
| | - Naoki Kaneko
- Milestone General K.K., KSP Sakado 3-2-1, Kawasaki, Kanagawa, 213-0012, Japan
| | - Hiroyuki Mizushima
- Milestone General K.K., KSP Sakado 3-2-1, Kawasaki, Kanagawa, 213-0012, Japan
| | - Kotaro Tsuchiya
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo, 108-8277, Japan
| | - Masao Nemoto
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo, 108-8277, Japan
| | - Yuichi Takaku
- Institute for Environmental Science, Department of Radioecology, 1-7 Ienomae, Obuchi, Rokkasyo-mura, Kamikita, Aomori, 039-3212, Japan
| | - Yu Vin Sahoo
- RIKEN, Hirosawa 2-1, Wako-shi, Saitama, 351-0198, Japan
| | - Miho Tanaka
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo, 108-8277, Japan.
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Monteiro R, Vale C, Ferreira N, Silva P, Pereira E, Vaz-Pires P. Multi-elemental composition of white and dark muscles in swordfish. Food Chem 2020; 343:128438. [PMID: 33127231 DOI: 10.1016/j.foodchem.2020.128438] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 09/29/2020] [Accepted: 10/16/2020] [Indexed: 11/28/2022]
Abstract
Concentrations of 16 elements (K, Na, Mg, Ca, Fe, Zn, Hg, Se, As, Cu, Cd, Mn, Ni, Cr, Pb and Co) were determined in dorsal white and dark muscle of Xiphias gladius, sampled at various positions of a single swordfish and at the same position of eight specimens. Hg was quantified by thermal decomposition atomic absorption spectrometry (LECO AMA-254) and the rest of the elements by inductively coupled plasma optical emission spectrometry (ICP OES) or mass spectrometry (ICP MS). Element partitioning differed in dark and white muscle. Dark muscle was particularly enriched in Fe (median 13 times) and Cu (9) and moderately enhanced in Se, Mn, Zn and Cd (2.8-4.0). Dark:white ratios of the potentially toxic elements (As, Cr, Hg, Ni and Pb) varied from 0.9 to 1.4, pointing to a similar distribution between the two muscles types and indicating no additional risk in the consumption of dark muscle.
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Affiliation(s)
- Rui Monteiro
- Department of Chemistry and CESAM/REQUIMTE, University of Aveiro, Portugal; Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Matosinhos, Portugal.
| | - Carlos Vale
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Matosinhos, Portugal
| | - Nicole Ferreira
- Department of Chemistry and CESAM/REQUIMTE, University of Aveiro, Portugal
| | - Paula Silva
- Brasmar, Av. Ferreira Castro, 73, 4745-251 Trofa, Portugal
| | - Eduarda Pereira
- Department of Chemistry and CESAM/REQUIMTE, University of Aveiro, Portugal
| | - Paulo Vaz-Pires
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR), Matosinhos, Portugal; Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Portugal
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11
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Matias RS, Seco J, Gregory S, Belchier M, Pereira ME, Bustamante P, Xavier JC. Antarctic octopod beaks as proxy for mercury concentrations in soft tissues. MARINE POLLUTION BULLETIN 2020; 158:111447. [PMID: 32753223 DOI: 10.1016/j.marpolbul.2020.111447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 07/05/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
As the role of mercury is poorly known in Southern Ocean biota, the total mercury (T-Hg) concentrations were evaluated in upper/lower beaks, digestive gland, gills and mantle muscle of Adelieledone polymorpha and Pareledone turqueti, two of the most abundant octopod species around South Georgia. Beaks had the lowest T-Hg concentrations (A. polymorpha: [T-Hg]Upper = 27.2 ± 12.9 ng∙g-1 and [T-Hg]Lower = 27.5 ± 20.0 ng∙g-1; P. turqueti: [T-Hg]Upper = 34.6 ± 13.9 ng∙g-1 and [T-Hg]Lower = 56.8 ± 42.0 ng∙g-1), followed by gills and muscle. The highest values were recorded in the digestive gland (A. polymorpha: 251.6 ± 69.7 ng∙g-1; P. turqueti: 347.0 ± 177.0 ng∙g-1). Significant relationships were found between the concentrations of T-Hg in the beaks and muscle of A. polymorpha (T-Hg in muscle is 10 times higher than in beaks). This study shows that beaks can be used as proxy for T-Hg in muscle for some octopod species, and a helpful tool for estimating total Hg body burden from beaks.
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Affiliation(s)
- Ricardo S Matias
- Marine and Environmental Sciences Centre (MARE), Department of Life Sciences, Faculty of Sciences and Technology of the University of Coimbra, 3000-456 Coimbra, Portugal.
| | - José Seco
- Department of Chemistry and CESAM/REQUIMTE, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; School of Biology, University of St Andrews, KY16 9ST, Scotland, United Kingdom.
| | - Susan Gregory
- British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, United Kingdom; Government of South Georgia and the South Sandwich Islands, Stanley, Falkland Islands
| | - Mark Belchier
- British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, United Kingdom
| | - Maria E Pereira
- Department of Chemistry and CESAM/REQUIMTE, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Paco Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS - La Rochelle Université, 2 rue Olympe de Gouges, 17000 La Rochelle, France; Institut Universitaire de France (IUF), 1 rue Descartes 75005 Paris, France
| | - José C Xavier
- Marine and Environmental Sciences Centre (MARE), Department of Life Sciences, Faculty of Sciences and Technology of the University of Coimbra, 3000-456 Coimbra, Portugal; British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, United Kingdom
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12
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Lischka A, Braid H, Cherel Y, Bolstad K, Lacoue-Labarthe T, Bustamante P. Influence of sexual dimorphism on stable isotopes and trace element concentrations in the greater hooked squid Moroteuthopsis ingens from New Zealand waters. MARINE ENVIRONMENTAL RESEARCH 2020; 159:104976. [PMID: 32662429 DOI: 10.1016/j.marenvres.2020.104976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
The Chatham Rise, one of the highest offshore-primary production regions in New Zealand waters, hosts a great abundance and diversity of deep-sea cephalopods including the greater hooked squid, Moroteuthopsis ingens. Stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) and trace element concentrations (Ag, As, Cd, Co, Cr, Cu, Fe, Hg, Ni, Pb, Se, V, and Zn) were assessed in female and male specimens of different size classes (89-563 mm mantle length). Values of δ13C and δ15N were overall higher in females and δ13C was further influenced by size and sex. Both muscular mantle (the largest fraction of the total body mass) and digestive gland (the known main storage organ for Ag, Cd, Cu and Zn in many cephalopods) tissues were analysed. Higher levels of Cd were observed in males than in females. A positive effect was found between size and Hg concentrations, which could be related to the ontogenetic descent of larger specimens into deeper waters, where they are exposed to higher Hg concentrations, and/or dietary shifts toward Hg-enriched prey with increasing size. This study provides trace element data for this abundant and ecologically important species, and further reveals higher trace element concentrations (especially Hg) in M. ingens from the Chatham Rise, compared to specimens from the sub-Antarctic zone.
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Affiliation(s)
- A Lischka
- AUT Lab for Cephalopod Ecology & Systematics, School of Science, Auckland University of Technology, Private Bag 92006, 1142, Auckland, New Zealand.
| | - H Braid
- AUT Lab for Cephalopod Ecology & Systematics, School of Science, Auckland University of Technology, Private Bag 92006, 1142, Auckland, New Zealand
| | - Y Cherel
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS-La Rochelle Université, 79360, Villiers-en-Bois, France
| | - K Bolstad
- AUT Lab for Cephalopod Ecology & Systematics, School of Science, Auckland University of Technology, Private Bag 92006, 1142, Auckland, New Zealand
| | - T Lacoue-Labarthe
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000, La Rochelle, France
| | - P Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-La Rochelle Université, 2 rue Olympe de Gouges, 17000, La Rochelle, France; Institut Universitaire de France (IUF), 1 rue Descartes, 75005, Paris, France
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13
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Imaging Differential Mercury Species Bioaccumulation in Glass Eels Using Isotopic Tracers and Laser Ablation Inductively Coupled Plasma Mass Spectrometry. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10072463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Dramatic increases in global mercury pollution require a deeper understanding of specific toxicity mechanisms for mercury compounds in organisms. Despite numerous studies addressing mercury toxicity, the detailed mechanisms underlying its transport and accumulation in fish remain unclear. The aim of this study was to unravel differential uptake pathways for mercury compounds, metabolisation, and sequestration mechanisms in glass eels using techniques able to localize at the tissue and organ levels. A multi isotope image mapping procedure was developed to simultaneously study the uptake and distribution of both mercury compounds MeHg and Hg(II) within the organs of the whole organism. The use of isotopically labelled Hg species (methylmercury Me201Hg and inorganic mercury 199Hg(II)) and image based on isotope ratio instead of elemental signals allowed to visualize spatially and with time the differential Hg species uptake, transport, and sequestration routes. The results showed a preferential uptake of the MeHg counterpart and a dynamic transport of MeHg within different organs. The gills were the main target organs for MeHg uptake, whereas the skeletal muscle was the final MeHg storage tissue. Hg(II) was found to mainly transit by the gills and the olfactory bulbs with a very low transfer and storage in the other organs and a rapid depuration. No significant internal demethylation and methylation was observed during this experimentation.
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14
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Yu X, Khan S, Khan A, Tang Y, Nunes LM, Yan J, Ye X, Li G. Methyl mercury concentrations in seafood collected from Zhoushan Islands, Zhejiang, China, and their potential health risk for the fishing community: Capsule: Methyl mercury in seafood causes potential health risk. ENVIRONMENT INTERNATIONAL 2020; 137:105420. [PMID: 32070806 DOI: 10.1016/j.envint.2019.105420] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
Seafood is an important exposure route for mercury, especially methyl mercury (MeHg). Therefore, we quantified MeHg concentrations in 69 species of seafood including fish, crustaceans and mollusks collected from Zhoushan Islands, China. MeHg concentrations ranged from <0.0020-0.2098 µg/g and did not exceed the threshold limit of 1 µg/g in all sampled species, However, MeHg concentrations significantly differed among fish species (0.0085-0.2098 mg kg-1), crustaceans (<0.002-0.0221 mg kg-1) and mollusks (<0.002-0.1389 mg kg-1). The trophic magnification factor (TMF) was determined on the basis of the trophic level (TL). The TL values for fish, crustaceans and mollusks were above 3 when the TMF values were >1. The daily dietary intake and hazard quotient for MeHg were calculated to estimate exposure and health risk through seafood consumption by local inhabitants. The calculated HQ was lower than 1, thus indicating that the exposure was below the risk threshold of related chronic diseases. However, higher MeHg concentrations in fish species such as Scoliodon sorrakowah and Auxis thazard are concerning and may pose health risk through continuous consumption by local inhabitants.
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Affiliation(s)
- Xinwei Yu
- College of Biosystems Engineering and Food Science, Zhejiang University, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Hangzhou 310058, China; Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan Municipal Center For Disease Control and Prevention, Zhoushan 316021, China
| | - Sardar Khan
- CAS Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, Ningbo Urban Environment Observation and Research Station, Chinese Academy of Sciences, Ningbo 315800, China; Department of Environmental Science, University of Peshawar, Peshawar 25120, Pakistan.
| | - Anwarzeb Khan
- Department of Environmental Science, University of Peshawar, Peshawar 25120, Pakistan; Department of Environmental and Conservation Sciences, University of Swat, Swat 19130, Pakistan
| | - Yuting Tang
- School of Geographical Sciences, Faculty of Science and Engineering, The University of Nottingham, Ningbo 315100, China
| | - Luis M Nunes
- CAS Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, Ningbo Urban Environment Observation and Research Station, Chinese Academy of Sciences, Ningbo 315800, China; Faculty of Sciences and Technology, Civil Engineering Research and Innovation for Sustainability Center, University of Algarve, Faro, Portugal
| | - Jianbo Yan
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, Zhoushan Municipal Center For Disease Control and Prevention, Zhoushan 316021, China
| | - Xingqian Ye
- College of Biosystems Engineering and Food Science, Zhejiang University, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Hangzhou 310058, China.
| | - Gang Li
- CAS Key Laboratory of Urban Environment and Health, Fujian Key Laboratory of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, Ningbo Urban Environment Observation and Research Station, Chinese Academy of Sciences, Ningbo 315800, China.
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15
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Seco J, Xavier JC, Brierley AS, Bustamante P, Coelho JP, Gregory S, Fielding S, Pardal MA, Pereira B, Stowasser G, Tarling GA, Pereira E. Mercury levels in Southern Ocean squid: Variability over the last decade. CHEMOSPHERE 2020; 239:124785. [PMID: 31726533 DOI: 10.1016/j.chemosphere.2019.124785] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 08/01/2019] [Accepted: 09/04/2019] [Indexed: 06/10/2023]
Abstract
The concentrations of total and proportions of organic mercury were measured in tissues of 355 individuals of 8 species of Southern Ocean squid (Alluroteuthis antarcticus, Bathyteuthis abyssicola, Filippovia knipovitchi, Galiteuthis glacialis, Gonatus antarcticus, Kondakovia longimana, Psychroteuthis glacialis and Slosarczykovia circumantarctica). Squid were caught around South Georgia (Scotia Sea) during 5 cruises, between the austral summers of 2006/07 to 2016/17 to evaluate temporal changes in bioaccumulation and tissue partitioning. Total mercury concentrations varied between 4 ng g-1 and 804 ng g-1 among all tissues. Net accumulation of mercury in muscle with size was observed in A. antarcticus, B. abyssicola and P. glacialis, but no relationship was found for S. circumantarctica and lower concentrations were observed in larger individuals of G. glacialis. Muscle tissues had the highest mercury concentrations in the majority of species, except for F. knipovitchi for which the digestive gland contained highest concentrations. In terms of the percentage of organic mercury in the tissues, muscle always contained the highest values (67%-97%), followed by the digestive gland (22%-38%). Lowest organic mercury percentages were found consistently in the gills (9%-19%), suggesting only low levels of incorporation through the dissolved pathway and/or a limited redistribution of dietary organic mercury towards this tissue. Overall, results are indicative of a decreasing trend of mercury concentrations in the majority of analysed species over the last decade. As cephalopods are an important Southern Ocean trophic link between primary consumers and top predators, these changes suggest decreasing mercury levels in lower trophic levels and an alleviation of the mercury burden on higher predators that consume squid.
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Affiliation(s)
- José Seco
- Department of Chemistry and CESAM/REQUIMTE, University of Aveiro, 3810-193, Aveiro, Portugal; Pelagic Ecology Research Group, Scottish Oceans Institute, University of St Andrews, St Andrews, KY16 8LB, Scotland, UK.
| | - José C Xavier
- British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge, CB3 0ET, UK; MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal
| | - Andrew S Brierley
- Pelagic Ecology Research Group, Scottish Oceans Institute, University of St Andrews, St Andrews, KY16 8LB, Scotland, UK
| | - Paco Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS - La Rochelle Université, 2 Rue Olympe de Gouges, 17000, La Rochelle, France
| | - João P Coelho
- Department of Biology and CESAM, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Susan Gregory
- British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge, CB3 0ET, UK; Government of South Georgia & the South Sandwich Islands, Stanley, Falkland Islands
| | - Sophie Fielding
- British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge, CB3 0ET, UK
| | - Miguel A Pardal
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal
| | - Bárbara Pereira
- Department of Chemistry and CESAM/REQUIMTE, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Gabriele Stowasser
- British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge, CB3 0ET, UK
| | - Geraint A Tarling
- British Antarctic Survey, NERC, High Cross, Madingley Road, Cambridge, CB3 0ET, UK
| | - Eduarda Pereira
- Department of Chemistry and CESAM/REQUIMTE, University of Aveiro, 3810-193, Aveiro, Portugal
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16
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de Almeida Rodrigues P, Ferrari RG, Dos Santos LN, Conte Junior CA. Mercury in aquatic fauna contamination: A systematic review on its dynamics and potential health risks. J Environ Sci (China) 2019; 84:205-218. [PMID: 31284912 DOI: 10.1016/j.jes.2019.02.018] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/21/2019] [Accepted: 02/14/2019] [Indexed: 05/27/2023]
Abstract
Mercury is an important pollutant, released into aquatic ecosystems both naturally and by anthropogenic action. This element is transferred to aquatic organisms in different ways, causing potential health risks. In addition, mercury can be accumulated by humans, especially through the consumption of contaminated food. This systematic review aims to present mercury pathways, the major routes through which this element reaches the aquatic environment and its transformations until becoming available to living animals, leading to bioaccumulation and biomagnification phenomena. The key biotic and abiotic factors affecting such processes, the impact of mercury on animal and human health and the issue of seafood consumption as a source of chronic mercury contamination are also addressed. A total of 101 articles were retrieved from a standardized search on three databases (PubMed, Emabse, and Web of Science), in addition to 28 other studies not found on these databases but considered fundamental to this review (totaling 129 articles). Both biotic and abiotic factors display fundamental importance in mediating mercurial dynamics, i.e., muscle tropism, and salinity, respectively. Consequently, mercurial contamination in aquatic environments affects animal health, especially the risk of extinction species and also on human health, with methylmercury the main mercury species responsible for acute and chronic symptomatology.
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Affiliation(s)
- Paloma de Almeida Rodrigues
- Molecular and Analytical Laboratory Center, Department of Food Technology, Faculty of Veterinary, Universidade Federal Fluminense, Niterói, Brazil
| | - Rafaela Gomes Ferrari
- Molecular and Analytical Laboratory Center, Department of Food Technology, Faculty of Veterinary, Universidade Federal Fluminense, Niterói, Brazil; Chemistry Institute, Food Science Program, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luciano Neves Dos Santos
- Laboratory of Theoretical and Applied Ichthyology, Department of Ecology and Marine Resources, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carlos Adam Conte Junior
- Molecular and Analytical Laboratory Center, Department of Food Technology, Faculty of Veterinary, Universidade Federal Fluminense, Niterói, Brazil; Chemistry Institute, Food Science Program, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; National Institute of Health Quality Control, Fundaçãeo Oswaldo Cruz, Rio de Janeiro, Brazil.
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17
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Oliveira H, Muniz JA, Bandarra NM, Castanheira I, Coelho IR, Delgado I, Gonçalves S, Lourenço HM, Motta C, Duarte MP, Nunes ML, Gonçalves A. Effects of Industrial Boiling on the Nutritional Profile of Common Octopus ( Octopus vulgaris). Foods 2019; 8:E411. [PMID: 31547442 PMCID: PMC6770756 DOI: 10.3390/foods8090411] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 09/06/2019] [Accepted: 09/10/2019] [Indexed: 11/16/2022] Open
Abstract
Industrial cooking of common octopus (Octopus vulgaris) under well-established procedures is advantageous for current consumers, which demand healthy and convenient food. This work aimed to evaluate the effect of industrial water boiling, without the addition of salt, on the nutritional profile of common octopus. True retentions (TRs) were calculated for essential nutrients and toxic elements. After boiling, the moisture content decreased, resulting in a concentration of other constituents (protein, fat, fatty acids, majority of amino acids, phosphorus, zinc, and iodine). High TRs were obtained for some essential nutrients: 90.2% (eicosapentaenoic acid, EPA), 89.1% (docosahexaenoic acid, DHA), ≥74.6% (indispensable amino acids, IAA), and 86.8% (iodine). In both raw and boiled octopus, polyunsaturated fatty acids (252.2 and 425.1 mg/100 g), leucine (940.1 and 1613.4 mg/100 g), glutamate (1971.5 and 3257.1 mg/100 g), sodium (393.3 and 332.5 mg/100 g), and zinc (12.6 and 16.6 mg/kg) were, respectively, the most abundant fatty acids, IAA, dispensable amino acids, macro, and micro elements. Cadmium, lead, and mercury levels found in boiled octopus were 0.02, 0.10, and 0.08 mg/kg, respectively. The consumption of 150 g (usual portion) of boiled octopus is advisable because it contributes to significant daily intakes of EPA+DHA (>100%), selenium (75.6%), and iodine (12.4%), and 25% of the daily adequate intake of sodium for adults.
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Affiliation(s)
- Helena Oliveira
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal.
| | - José António Muniz
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
- MEtRICs/DCTB, Faculty of Sciences and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Narcisa Maria Bandarra
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
| | - Isabel Castanheira
- INSA, I.P., National Institute of Health Dr. Ricardo Jorge, Food and Nutrition Department, Av. Padre Cruz, 1649-016 Lisboa, Portugal.
| | - Inês Ribeiro Coelho
- INSA, I.P., National Institute of Health Dr. Ricardo Jorge, Food and Nutrition Department, Av. Padre Cruz, 1649-016 Lisboa, Portugal.
| | - Inês Delgado
- INSA, I.P., National Institute of Health Dr. Ricardo Jorge, Food and Nutrition Department, Av. Padre Cruz, 1649-016 Lisboa, Portugal.
| | - Susana Gonçalves
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
| | - Helena Maria Lourenço
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
| | - Carla Motta
- INSA, I.P., National Institute of Health Dr. Ricardo Jorge, Food and Nutrition Department, Av. Padre Cruz, 1649-016 Lisboa, Portugal.
| | - Maria Paula Duarte
- MEtRICs/DCTB, Faculty of Sciences and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
| | - Maria Leonor Nunes
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal.
| | - Amparo Gonçalves
- IPMA, I.P., Portuguese Institute for the Sea and Atmosphere, Division of Aquaculture and Upgrading, Av. Alfredo Magalhães Ramalho 6, 1495-165 Lisboa, Portugal.
- CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos S/N, 4450-208 Matosinhos, Portugal.
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Metal Concentration in Muscle and Digestive Gland of Common Octopus ( Octopus vulgaris) from Two Coastal Site in Southern Tyrrhenian Sea (Italy). Molecules 2019; 24:molecules24132401. [PMID: 31261856 PMCID: PMC6651072 DOI: 10.3390/molecules24132401] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 06/24/2019] [Accepted: 06/28/2019] [Indexed: 11/17/2022] Open
Abstract
Octopus vulgaris constitute an important part of most suitable marine resources for human consumption, however, they can represent a source in chemical contaminants intake such as heavy metals. In this scenario, the aim of the study was the evaluation of the concentration of lead (Pb), cadmium (Cd) and mercury (Hg) in the muscle and digestive gland of octopus caught from two different locations along Campania coast (Castellammare di Stabia and Napoli) and the estimation of their weekly human intake derived from the ingestion of octopus. Analysing 38 samples showed a higher concentration of Pb in the muscle of octopus in Castellammare di Stabia than in Napoli. No statistical differences were reported for Cd, Pb and Hg concentrations in the digestive gland of octopus between two sampling sites. Differences were observed between the two tissue types, with a higher level of Cd and Pb observed in the digestive gland compared with the muscle. Noteworthy, the consumption of muscle from Castellammare di Stabia could increase Pb intake in heavy consumers of local octopus. In conclusion, the present work determines that it is important to improve strategies to minimize environmental pollution sources in these areas.
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Baptista M, Azevedo O, Figueiredo C, Paula JR, Santos MT, Queiroz N, Rosa R, Raimundo J. Body size and season influence elemental composition of tissues in ocean sunfish Mola mola juveniles. CHEMOSPHERE 2019; 223:714-722. [PMID: 30802837 DOI: 10.1016/j.chemosphere.2019.02.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 02/04/2019] [Accepted: 02/10/2019] [Indexed: 06/09/2023]
Abstract
The effects of body size and season on the elemental composition of ocean sunfish Mola mola were assessed for the first time. A total of 57 by-caught juvenile specimens measuring between 31.8 and 120.3 cm were sampled in spring and autumn. Concentrations of trace elements (three essential - Co, Cu, Zn, and three non-essential - As, Cd, Pb) were determined in five body tissues [gills, gelatin (subcutaneous white gelatinous layer), liver, white muscle and red muscle]. Elemental composition of M. mola tissues was found to vary with both body size and season. When an effect of size was verified, the most common trend was a decrease in elemental levels with increasing fish size, most likely deriving from the fast growth rate of this fish (i.e. dilution effect) and the occurrence of an ontogenetic shift in dietary preferences. Differently, Zn levels increased with fish size in both gills and red muscle, potentially deriving from a greater physiological need in those tissues as fish grow. Seasonal differences in trace element levels were observed for approximately half of the studied cases (tissue/trace element) with greater elemental concentrations being mostly found in autumn. Such pattern was most obvious in liver tissue, presumably resulting from a greater dietary elemental uptake in the end of summer/autumn. A general absence of seasonal differences was observed in the gills, white muscle and red muscle. Interestingly, a trend of enhanced concentrations in spring was observed for gelatin, potentially deriving from past long-term differences in exposure to trace elements.
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Affiliation(s)
- Miguel Baptista
- MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora do Cabo, 939, 2750-374, Cascais, Portugal; Divisão de Oceanografia Ambiental e Bioprospecção, IPMA - Instituto Português do Mar e da Atmosfera, Av. Brasília, 1449-006, Lisboa, Portugal; CIBIO/InBIO, Universidade do Porto, Campus Agrário de Vairão, 4485-661, Vairão, Portugal.
| | - Olga Azevedo
- Divisão de Oceanografia Ambiental e Bioprospecção, IPMA - Instituto Português do Mar e da Atmosfera, Av. Brasília, 1449-006, Lisboa, Portugal
| | - Cátia Figueiredo
- MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora do Cabo, 939, 2750-374, Cascais, Portugal; Divisão de Oceanografia Ambiental e Bioprospecção, IPMA - Instituto Português do Mar e da Atmosfera, Av. Brasília, 1449-006, Lisboa, Portugal
| | - José Ricardo Paula
- MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora do Cabo, 939, 2750-374, Cascais, Portugal
| | - Marta Tiago Santos
- Divisão de Aquacultura e Valorização, IPMA - Instituto Português do Mar e da Atmosfera, Av. Brasília, 1449-006, Lisboa, Portugal
| | - Nuno Queiroz
- CIBIO/InBIO, Universidade do Porto, Campus Agrário de Vairão, 4485-661, Vairão, Portugal
| | - Rui Rosa
- MARE - Marine and Environmental Sciences Centre, Laboratório Marítimo da Guia, Faculdade de Ciências, Universidade de Lisboa, Av. Nossa Senhora do Cabo, 939, 2750-374, Cascais, Portugal
| | - Joana Raimundo
- Divisão de Oceanografia Ambiental e Bioprospecção, IPMA - Instituto Português do Mar e da Atmosfera, Av. Brasília, 1449-006, Lisboa, Portugal
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Arechavala-Lopez P, Capó X, Oliver-Codorniú M, Sillero-Rios J, Busquets-Cortés C, Sanchez-Jerez P, Sureda A. Fatty acids and elemental composition as biomarkers of Octopus vulgaris populations: Does origin matter? MARINE POLLUTION BULLETIN 2019; 139:299-310. [PMID: 30686431 DOI: 10.1016/j.marpolbul.2018.12.048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 12/26/2018] [Accepted: 12/27/2018] [Indexed: 06/09/2023]
Abstract
The present study describes the novel use of fatty acids (FAs) and element profiles of Octopus vulgaris inhabiting three coastal areas in the W-Mediterranean Sea. These populations are exposed to different anthropogenic activities, and were compared at different geographical scales. The FA composition in the mantle of O. vulgaris exhibited significant differences in 22:6 n-3 (DHA) and 22:5 n-3 (EPA) among the sampled populations. The essential microelements Fe, Cu, Zn and Ni, and the non-essential microelements As, Sr, Al and Cd were the main contributors of variability among sampled octopus populations, with some notable differences among tissues. The variations in the FAs and elemental composition in octopus tissues were detected with other populations throughout the species distribution range, which might reflect differences in natural habitats and foraging strategies. Therefore, these may be considered biomarkers as a proxy to distinguish the origin of octopus specimens at different scales.
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Affiliation(s)
- P Arechavala-Lopez
- Fish Ecology Group, Department of Ecology of Marine Resources, Mediterranean Institute of Advance Studies (IMEDEA-CSIC/UIB), Esporles, Balearic Islands, Spain.
| | - X Capó
- Research Group on Community Nutrition and Oxidative Stress, IUNICS, University of Balearic Islands, Palma de Mallorca, Balearic Islands, Spain
| | - M Oliver-Codorniú
- Fish Ecology Group, Department of Ecology of Marine Resources, Mediterranean Institute of Advance Studies (IMEDEA-CSIC/UIB), Esporles, Balearic Islands, Spain; Research Group on Community Nutrition and Oxidative Stress, IUNICS, University of Balearic Islands, Palma de Mallorca, Balearic Islands, Spain
| | - J Sillero-Rios
- Fish Ecology Group, Department of Ecology of Marine Resources, Mediterranean Institute of Advance Studies (IMEDEA-CSIC/UIB), Esporles, Balearic Islands, Spain; Research Group on Community Nutrition and Oxidative Stress, IUNICS, University of Balearic Islands, Palma de Mallorca, Balearic Islands, Spain
| | - C Busquets-Cortés
- Research Group on Community Nutrition and Oxidative Stress, IUNICS, University of Balearic Islands, Palma de Mallorca, Balearic Islands, Spain
| | - P Sanchez-Jerez
- Department of Marine Sciences and Applied Biology, University of Alicante, Alicante, Spain
| | - A Sureda
- Research Group on Community Nutrition and Oxidative Stress, IUNICS, University of Balearic Islands, Palma de Mallorca, Balearic Islands, Spain; CIBEROBN (Physiopathology of Obesity and Nutrition), E-07122 Palma de Mallorca, Balearic Islands, Spain
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Wang X, Wu F, Wang WX. In Vivo Mercury Demethylation in a Marine Fish (Acanthopagrus schlegeli). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:6441-6451. [PMID: 28514845 DOI: 10.1021/acs.est.7b00923] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Mercury (Hg) in fish has attracted public attention for decades, and methylmercury (MeHg) is the predominant form in fish. However, the in vivo MeHg demethylation and its influence on Hg level in fish have not been well-addressed. The present study investigated the in vivo demethylation process in a marine fish (black seabream, Acanthopagrus schlegeli) under dietary MeHg exposure and depuration and quantified the biotransformation and interorgan transportation of MeHg by developing a physiologically based pharmacokinetic (PBPK) model. After exposure, we observed a 2-fold increase of the whole-body inorganic Hg (IHg), indicating the existence of an in vivo demethylation process. The results strongly suggested that the intestine played a predominant role in MeHg demethylation with a significant rate (6.6 ± 1.7 day-1) during exposure, whereas the hepatic demethylation appeared to be an extremely slow (0.011 ± 0.001 day-1) process and could hardly affect the whole-fish Hg level. Moreover, demethylation in the intestine served as an important pathway for MeHg detoxification. Our study also pointed out that in vivo MeHg demethylation could influence Hg level and speciation in fish although food is the major pathway for Hg accumulation. Enhancing in vivo MeHg biotransformation (especially in the intestine) could be a potential key solution in minimizing Hg contamination in fish. The related factors involved in intestinal demethylation deserve more attention in the future.
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Affiliation(s)
- Xun Wang
- Division of Life Science, The Hong Kong University of Science and Technology (HKUST) , Clear Water Bay, Kowloon, Hong Kong, China
- Marine Environmental Laboratory, HKUST Shenzhen Research Institute , Shenzhen 518057, China
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences , Beijing 100012, China
| | - Wen-Xiong Wang
- Division of Life Science, The Hong Kong University of Science and Technology (HKUST) , Clear Water Bay, Kowloon, Hong Kong, China
- Marine Environmental Laboratory, HKUST Shenzhen Research Institute , Shenzhen 518057, China
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Penicaud V, Lacoue-Labarthe T, Bustamante P. Metal bioaccumulation and detoxification processes in cephalopods: A review. ENVIRONMENTAL RESEARCH 2017; 155:123-133. [PMID: 28214715 DOI: 10.1016/j.envres.2017.02.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 01/20/2017] [Accepted: 02/03/2017] [Indexed: 06/06/2023]
Abstract
In recent decades, cephalopods have been shown to have very high capacities to accumulate most trace elements, regardless of whether they are essential (e.g., Cu and Zn) or non-essential (e.g., Ag and Cd). Among the different pathways of exposure to trace elements, the trophic pathway appears to be the major route of assimilation for numerous metals, including Cd, Co, Hg and Zn. Once assimilated, trace elements are distributed in the organism, accumulating in storage organs. The digestive gland is the main organ in which many trace elements accumulate, whichever of the exposure pathway. For example, this organ can present Cd concentrations reaching hundreds to thousands of ppm for some species, even though the digestive gland represents only a small proportion of the total mass of the animal. Such a specific organotropism towards the digestive gland of both essential and non-essential elements, regardless of the exposure pathway, poses the question of the detoxification processes evolved by cephalopods in order to sustain these high concentrations. This paper reviews the current knowledge on the bioaccumulation of trace elements in cephalopods, the differences in pharmaco-dynamics between organs and tissues, and the detoxification processes they use to counteract trace element toxicity. A peculiar focus has been done on the bioaccumulation within the digestive gland by investigating the subcellular locations of trace elements and their protein ligands.
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Affiliation(s)
- Virginie Penicaud
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, 17000 La Rochelle, France
| | - Thomas Lacoue-Labarthe
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, 17000 La Rochelle, France.
| | - Paco Bustamante
- Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, 17000 La Rochelle, France
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Ahmad NI, Noh MFM, Mahiyuddin WRW, Jaafar H, Ishak I, Azmi WNFW, Veloo Y, Mokhtar FA. The mercury levels in crustaceans and cephalopods from Peninsular Malaysia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:12960-12974. [PMID: 25916470 DOI: 10.1007/s11356-015-4415-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 03/20/2015] [Indexed: 06/04/2023]
Abstract
This study is to determine total mercury in edible tissues of eight species of cephalopods and 12 species of crustaceans purchased from 11 identified major fish landing ports and wet markets throughout Peninsular Malaysia. The concentration of mercury was measured by cold vapor atomic absorption spectrometry (AAS) technique using the Perkin Elmer Flow Injection Mercury System (FIMS-400). In general, the mercury levels were low with concentrations in cephalopods ranging from 0.099 to 2.715 mg/kg dry weight (or 0.0184-0.505 mg/kg wet weight) and in crustaceans ranging from 0.057 to 1.359 mg/kg dry weight (or 0.0111-0.265 mg/kg wet weight). The mercury levels showed no significant differences (P > 0.05) between species for both cephalopods and crustaceans. There was no significant correlation between mercury concentrations and the body size of individual for both groups as well. Comparisons with mercury levels obtained found from other previous studies and/or species noted that they were of the same magnitude or relatively low compared to various locations reported worldwide.
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Affiliation(s)
- Nurul Izzah Ahmad
- Institute for Medical Research, Kuala Lumpur, Jalan Pahang, 50588, Malaysia,
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Vieira HC, Morgado F, Soares AMVM, Abreu SN. Fish consumption recommendations to conform to current advice in regard to mercury intake. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:9595-9602. [PMID: 25948385 DOI: 10.1007/s11356-015-4635-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 04/28/2015] [Indexed: 06/04/2023]
Abstract
This article reviews fish consumption data, mercury tolerable intake values, and mercury (Hg) content in fish, based on several reports from the Food and Agriculture Organization and European Union. The study assumptions are valid based on the current established USEPA reference dose (RfD). Combining the number of meals (per week), amount of fish ingested (by meal), and levels of MeHg in fish, this study calculates and presents isocurves indicating the maximum number of fishmeal per week without exceeding the USEPA RfD for methylmercury (MeHg). RfD are assumed to be the "exposure dose that is likely to be without deleterious effect even if continued exposure occurs over a lifetime." The study points out that even considering a single 50-g fish meal per week, the USEPA RfD would be exceeded, triggered by values above 0.84 μg g(-1) of MeHg in fish, and this despite being allowed levels up to 1.0 μg g(-1) of MeHg in fish consumption!-Have we a health risk? Fish consumption is expected to be relatively stable, while anthropogenic mercury emissions are expected to stabilize or even to increase beyond current values. How many meals of fish per week can we have, combining the number of fish meals per week, amount of fish ingested by meal, and levels of MeHg in fish?
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Affiliation(s)
- H C Vieira
- Department of Biology, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal,
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Pereira P, Raimundo J, Araújo O, Canário J, Almeida A, Pacheco M. Fish eyes and brain as primary targets for mercury accumulation - a new insight on environmental risk assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 494-495:290-298. [PMID: 25058895 DOI: 10.1016/j.scitotenv.2014.07.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 07/02/2014] [Accepted: 07/03/2014] [Indexed: 06/03/2023]
Abstract
Fish eyes and brain are highly susceptible to environmental Hg exposure but this issue is still scarcely investigated, mainly regarding methylmercury (MeHg) accumulation. Yet, Hg levels in fish lens have not been previously examined under field conditions. Total Hg (tHg), MeHg and inorganic Hg (iHg) levels were assessed in the brain, eye wall and lens of the golden grey mullet (Liza aurata) from an Hg contaminated area, both in winter and summer, together with water and sediment levels. Sampling was performed at Aveiro lagoon (Portugal) where a confined area (LAR) is severely contaminated by Hg. Fish brain, eye wall and lens accumulated higher levels of tHg, MeHg and iHg at LAR than the reference site, reflecting faithfully environmental spatial differences. The brain and eye wall responded also to the winter-summer changes found in water and sediment, accumulating higher levels of MeHg (and tHg) in winter. Contrarily, lens was unable to reflect seasonal changes, probably due to its composition and structural stability over time. The three neurosensory structures accumulated preferentially MeHg than iHg (MeHg was higher than 77% of tHg). Lens exhibited a higher retention capacity of MeHg (mean around 1 μg g(-1) at LAR), accumulating higher levels than the other two tissues. Interestingly, MeHg and iHg levels were significantly correlated for the brain and eye wall but poorly associated within the two analysed eye components. The high levels of MeHg found in the brain, eye wall and lens could compromise their functions and this needs further research.
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Affiliation(s)
- Patrícia Pereira
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; IPMA - Portuguese Institute for the Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal; Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; ICVS/3Bs, PT Government Associated Laboratory, Braga/Guimarães, Portugal.
| | - Joana Raimundo
- IPMA - Portuguese Institute for the Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, 4050-123 Porto, Portugal
| | - Olinda Araújo
- IPMA - Portuguese Institute for the Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal
| | - João Canário
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Armando Almeida
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; ICVS/3Bs, PT Government Associated Laboratory, Braga/Guimarães, Portugal
| | - Mário Pacheco
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
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Raimundo J, Pereira P, Vale C, Canário J, Gaspar M. Relations between total mercury, methylmercury and selenium in five tissues of Sepia officinalis captured in the south Portuguese coast. CHEMOSPHERE 2014; 108:190-196. [PMID: 24582035 DOI: 10.1016/j.chemosphere.2014.01.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 12/23/2013] [Accepted: 01/05/2014] [Indexed: 06/03/2023]
Abstract
Mercury, methylmercury and selenium were determined in digestive gland, branchial hearts, mantle, kidney and gills of Sepia officinalis from two areas of the south Portuguese coast. To the best of our knowledge these are the first data on Hg, MeHg and Se in branchial hearts, kidney and gills of cuttlefish. Digestive gland, branchial hearts and kidney presented higher levels of Hg and Se than mantle and gills. Methylmercury was significantly higher in digestive gland, branchial hearts and mantle. The enhanced levels of Hg in digestive gland and branchial heart reinforce the elevated storage capacity of these two tissues. The percentage of MeHg varied from 6.1% in gills to 92% in mantle. Linear and positive MeHg-Hg relations were obtained for the five tissues, being the better relation and higher slope observed for mantle, followed by branchial hearts, digestive gland, kidney and gills. The Se:Hg molar ratios showed a surplus of Se in all tissues. Calculations based on the equimolarity of Se:Hg point that 95-99% of Se are not linked to Hg (Se free). The negligible quantity of Se associated with Hg suggests that the mechanism of MeHg demethylation was not triggered in none of the tissues, presumably because the threshold for MeHg toxicity was not achieved.
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Affiliation(s)
- Joana Raimundo
- IPMA, Portuguese Institute of Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal.
| | - Patrícia Pereira
- IPMA, Portuguese Institute of Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal
| | - Carlos Vale
- IPMA, Portuguese Institute of Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal
| | - João Canário
- IPMA, Portuguese Institute of Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal; CQE, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Miguel Gaspar
- IPMA, Portuguese Institute of Sea and Atmosphere, Av. 5 de Outubro, 8700-305 Olhão, Portugal
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Brambilla G, Abete MC, Binato G, Chiaravalle E, Cossu M, Dellatte E, Miniero R, Orletti R, Piras P, Roncarati A, Ubaldi A, Chessa G. Mercury occurrence in Italian seafood from the Mediterranean Sea and possible intake scenarios of the Italian coastal population. Regul Toxicol Pharmacol 2013; 65:269-77. [DOI: 10.1016/j.yrtph.2012.12.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 12/27/2012] [Accepted: 12/29/2012] [Indexed: 01/05/2023]
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Zhang X, Mao Y, Huang Z, Qu M, Chen J, Ding S, Hong J, Sun T. Transcriptome analysis of the Octopus vulgaris central nervous system. PLoS One 2012; 7:e40320. [PMID: 22768275 PMCID: PMC3387010 DOI: 10.1371/journal.pone.0040320] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Accepted: 06/04/2012] [Indexed: 11/19/2022] Open
Abstract
Background Cephalopoda are a class of Mollusca species found in all the world's oceans. They are an important model organism in neurobiology. Unfortunately, the lack of neuronal molecular sequences, such as ESTs, transcriptomic or genomic information, has limited the development of molecular neurobiology research in this unique model organism. Results With high-throughput Illumina Solexa sequencing technology, we have generated 59,859 high quality sequences from 12,918,391 paired-end reads. Using BLASTx/BLASTn, 12,227 contigs have blast hits in the Swissprot, NR protein database and NT nucleotide database with E-value cutoff 1e−5. The comparison between the Octopus vulgaris central nervous system (CNS) library and the Aplysia californica/Lymnaea stagnalis CNS ESTs library yielded 5.93%/13.45% of O. vulgaris sequences with significant matches (1e−5) using BLASTn/tBLASTx. Meanwhile the hit percentage of the recently published Schistocerca gregaria, Tilapia or Hirudo medicinalis CNS library to the O. vulgaris CNS library is 21.03%–46.19%. We constructed the Phylogenetic tree using two genes related to CNS function, Synaptotagmin-7 and Synaptophysin. Lastly, we demonstrated that O. vulgaris may have a vertebrate-like Blood-Brain Barrier based on bioinformatic analysis. Conclusion This study provides a mass of molecular information that will contribute to further molecular biology research on O. vulgaris. In our presentation of the first CNS transcriptome analysis of O. vulgaris, we hope to accelerate the study of functional molecular neurobiology and comparative evolutionary biology.
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Affiliation(s)
- Xiang Zhang
- The Laboratory of Marine Biodiversity and Global Change, Xiamen University, Xiamen, China
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Yong Mao
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Zixia Huang
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Meng Qu
- The Laboratory of Marine Biodiversity and Global Change, Xiamen University, Xiamen, China
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Jun Chen
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Shaoxiong Ding
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China
- The Laboratory of Marine Biodiversity and Global Change, Xiamen University, Xiamen, China
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
- * E-mail:
| | - Jingni Hong
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Tiantian Sun
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
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Biological responses related to agonistic, antagonistic and synergistic interactions of chemical species. Anal Bioanal Chem 2012; 403:2237-53. [DOI: 10.1007/s00216-012-5776-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Revised: 01/17/2012] [Accepted: 01/20/2012] [Indexed: 01/26/2023]
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