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Oliveira VH, Fonte BA, Costa F, Sousa AI, Henriques B, Pereira E, Dolbeth M, Díez S, Coelho JP. The effect of Zostera noltei recolonization on the sediment mercury vertical profiles of a recovering coastal lagoon. CHEMOSPHERE 2023; 345:140438. [PMID: 37852379 DOI: 10.1016/j.chemosphere.2023.140438] [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: 03/15/2023] [Revised: 09/07/2023] [Accepted: 10/12/2023] [Indexed: 10/20/2023]
Abstract
Mercury's extreme toxicity and persistence in the environment justifies a thorough evaluation of its dynamics in ecosystems. Aveiro Lagoon (Portugal) was for decades subject to mercury effluent discharges. A Nature-based Solution (NbS) involving Zostera noltei re-colonization is being tested as an active ecosystem restoration measure. To study the effect of Zostera noltei on the sediment contaminant biogeochemistry, seasonal (summer/winter) sediment, interstitial water and labile mercury vertical profiles were made in vegetated (Transplanted and Natural seagrass meadows) and non-vegetated sites (Bare-bottom area). While no significant differences (p > 0.05) were observed in the sedimentary phase, Zostera noltei presence reduced the reactive/labile mercury concentrations in the top sediment layers by up to 40% when compared to non-vegetated sediment, regardless of season. No differences were found between vegetated meadows, highlighting the fast recovery of the contaminant regulation ecosystem function provided by the plants after re-colonization and its potential for the rehabilitation of historically contaminated ecosystems.
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Affiliation(s)
- V H Oliveira
- ECOMARE - Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal.
| | - B A Fonte
- ECOMARE - Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal
| | - F Costa
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal
| | - A I Sousa
- ECOMARE - Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal
| | - B Henriques
- LAQV-REQUIMTE- Associated Laboratory for Green Chemistry of the Network of Chemistry and Technology, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - E Pereira
- LAQV-REQUIMTE- Associated Laboratory for Green Chemistry of the Network of Chemistry and Technology, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - M Dolbeth
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Novo Edifício Do Terminal de Cruzeiros Do Porto de Leixões, Avenida General Norton de Matos S/N, 4450-208, Matosinhos, Portugal
| | - S Díez
- Environmental Chemistry Department, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, E-08034, Barcelona, Spain
| | - J P Coelho
- ECOMARE - Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal
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2
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Crespo D, Faião R, Freitas V, Oliveira VH, Sousa AI, Coelho JP, Dolbeth M. Using seagrass as a nature-based solution: Short-term effects of Zostera noltei transplant in benthic communities of a European Atlantic coastal lagoon. MARINE POLLUTION BULLETIN 2023; 197:115762. [PMID: 37979526 DOI: 10.1016/j.marpolbul.2023.115762] [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: 07/21/2023] [Revised: 11/04/2023] [Accepted: 11/06/2023] [Indexed: 11/20/2023]
Abstract
Seagrass meadows provide several ecological functions that improve the overall ecological health of coastal systems and therefore, it is urgent to promote the restoration of such habitats. In Ria de Aveiro, a coastal lagoon in the Atlantic Coast of Portugal, a restoration initiative was responsible for transplanting the dwarf eelgrass Zostera noltei into a highly degraded area. This eelgrass was used as a nature-based solution (NbS) to mitigate some of the impacts of historical mercury contamination. Comparisons of key-species features (density and biomass), and some community-derived indicators (total density and biomass, species richness and Shannon-Wiener index) between the transplanted seagrass patch, their bare vicinities, and their counterpart habitats on the source area, provided signs of the effectiveness of the restoration action on the benthic communities' recovery. Indicators were higher within the restored meadow, and biomass derived indicators of the restored meadow were similar to the source meadow.
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Affiliation(s)
- Daniel Crespo
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal; CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - Rita Faião
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal
| | - Vânia Freitas
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal.
| | - Vitor Hugo Oliveira
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - Ana I Sousa
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - João Pedro Coelho
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - Marina Dolbeth
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros, Avenida General Norton de Matos S/N, 4450-208 Matosinhos, Portugal.
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3
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Cardoso PG, Morais H, Crespo D, Tavares D, Pereira E, Pardal MÂ. Seasonal characterization of mercury contamination along the Portuguese coast: human health and environmental risk assessment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:101121-101132. [PMID: 37646930 PMCID: PMC10541821 DOI: 10.1007/s11356-023-29495-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 08/21/2023] [Indexed: 09/01/2023]
Abstract
A seasonal characterization of mercury (Hg) accumulation in three different estuaries along the Portuguese coast (i.e. Ria de Aveiro, Tagus estuary and Ria Formosa) was done. For that, it was evaluated: (1) Hg concentrations in abiotic (water) and biotic matrices (flora and fauna); (2) the risk of consumption of local seafood species (e.g. bivalves) to human health; and (3) the environmental risk to Hg exposure. During 1 year, water and biological samples were collected during low tide, in each system for Hg quantification. Our findings revealed that total Hg concentrations in surface waters were higher in Ria de Aveiro and Tagus estuary than in Ria Formosa. In Ria de Aveiro, a particular attention should be given in autumn periods, where Hg levels (≈ 100 µg L-1) were considered quite high according to European quality parameters. The same was observed for the Tagus estuary during spring time. Regarding macrofauna Hg levels, no clear seasonal trend was observed. Also, total Hg concentrations in edible species (< 0.5 µg. g-1 ww) represent no risk for consumption. However, considering the environmental risk, in Ria de Aveiro, there is a moderate risk (RQ > 0.1) in autumn periods, which can be a matter of concern.
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Affiliation(s)
- Patrícia Gonçalves Cardoso
- CIIMAR/CIMAR-Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Matosinhos, Portugal.
| | - Hugo Morais
- CIIMAR/CIMAR-Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Daniel Crespo
- CIIMAR/CIMAR-Interdisciplinary Centre for Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Daniela Tavares
- LAQV-REQUIMTE - Associated Laboratory for Green Chemistry, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Eduarda Pereira
- LAQV-REQUIMTE - Associated Laboratory for Green Chemistry, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Miguel Ângelo Pardal
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3000-456, Coimbra, Portugal
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4
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Morais T, Moleiro P, Leite C, Coppola F, Pinto J, Henriques B, Soares AMVM, Pereira E, Freitas R. Ecotoxicological impacts of metals in single and co-exposure on mussels: Comparison of observable and predicted results. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 881:163165. [PMID: 37003315 DOI: 10.1016/j.scitotenv.2023.163165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/22/2023] [Accepted: 03/26/2023] [Indexed: 06/01/2023]
Abstract
Used in high-tech and everyday products, mercury (Hg), cobalt (Co), and nickel (Ni) are known to be persistent and potentially toxic elements that pose a serious threat to the most vulnerable ecosystems. Despite being on the Priority Hazardous Substances List, existing studies have only assessed the individual toxicity of Co, Ni and Hg in aquatic organisms, with a focus on the latter, ignoring potential synergistic effects that may occur in real-world contamination scenarios. The present study evaluated the responses of the mussel Mytilus galloprovincialis, recognized as a good bioindicator of pollution, after exposure to Hg (25 μg/L), Co (200 μg/L) and Ni (200 μg/L) individually, and to the mixture of the three metals at the same concentration. The exposure lasted 28 days at 17 ± 1 °C, after which metal accumulation and a set of biomarkers related to organisms' metabolic capacity and oxidative status were measured. The results showed that the mussels could accumulate metals in both single- and co-exposure conditions (bioconcentration factors between 115 and 808) and that exposure to metals induced the activation of antioxidant enzymes. Although Hg concentration in organisms in the mixture decreased significantly compared to single exposure (9.4 ± 0.8 vs 21 ± 0.7 mg/kg), the negative effects increased in the mixture of the three elements, resulting in depletion of energy reserves, activation of antioxidants and detoxification enzymes, and cellular damage, with a hormesis response pattern. This study underscores the importance of risk assessment studies that include the effects of the combination of pollutants and demonstrates the limitations of applying models to predict metal mixture toxicity, especially when a hormesis response is given by the organisms.
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Affiliation(s)
- Tiago Morais
- Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Pedro Moleiro
- Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Carla Leite
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Francesca Coppola
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - João Pinto
- Departamento de Química & LAQV-REQUIMTE, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Bruno Henriques
- Departamento de Química & LAQV-REQUIMTE, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Amadeu M V M Soares
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Eduarda Pereira
- Departamento de Química & LAQV-REQUIMTE, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
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5
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Fonte BA, Oliveira VH, Sousa AI, Lopes CB, Henriques B, Pereira ME, Figueira E, Calado R, Lillebø AI, Coelho JP. Zostera noltei response to transplantation into historically Hg-contaminated sediments (A mesocosm experiment): Growth, bioaccumulation and photosynthetic performance. CHEMOSPHERE 2023:139374. [PMID: 37394190 DOI: 10.1016/j.chemosphere.2023.139374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/23/2023] [Accepted: 06/27/2023] [Indexed: 07/04/2023]
Abstract
The present study aimed to evaluate the effectiveness of seagrass recolonization as a nature-based solution for the recovery of a coastal area historically contaminated by mercury (Laranjo Bay, Ria de Aveiro, Portugal). A mesocosm approach was employed to assess the resistance of Zostera noltei to transplantation into contaminated sediments collected in-situ (0.5-20 mg kg-1 Hg). At each sampling time (15, 30, 60, 120 and 210 days), the resistance of transplanted Z. noltei was evaluated through growth parameters (biomass and coverage area), photosynthetic performance and elemental composition. Although some significant differences (p ≤ 0.05) were observed between treatments, essentially associated with the elemental composition of plant tissues, the most relevant variations were associated with seasonality. Overall, plants were found to not be affected by sediment contamination, under the tested concentrations, suggesting that recolonization with Z. noltei can be an effective restoration strategy for historically contaminated coastal areas.
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Affiliation(s)
- B A Fonte
- ECOMARE-Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada Do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal.
| | - V H Oliveira
- ECOMARE-Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada Do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal
| | - A I Sousa
- ECOMARE-Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada Do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal
| | - C B Lopes
- CICECO, Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - B Henriques
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - M E Pereira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - E Figueira
- ECOMARE-Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada Do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal
| | - R Calado
- ECOMARE-Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada Do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal
| | - A I Lillebø
- ECOMARE-Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada Do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal
| | - J P Coelho
- ECOMARE-Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM-Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada Do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal
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6
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Lozano-Bilbao E, Lozano G, Jurado-Ruzafa A, Hardisson A, Rubio C, Paz S, Martín V, Gutiérrez ÁJ. Interdecadal variations of the mercury content in Scomber colias in Canary Islands. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:8347-8353. [PMID: 36418833 DOI: 10.1007/s11356-022-24378-7] [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: 03/25/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
Mercury is a very dangerous toxic metal that bioaccumulates very easily in organisms, and it migrates through the food web. The specimens studied in this study were Scomber colias. In the results obtained for the years 1973, 1992, and 2021, the concentration of mercury has been decreasing considerably over the decades, starting with 0.23 ± 0.04 mg/kg in 1973, and having less than half in 2021 with 0.11 ± 0.01 mg/kg. This may be due to the laws imposed by the countries against pollution and to a greater extent in the elimination of mercury; thanks to these measures it has been possible to reduce the concentration of mercury by half in S. colias. Otherwise, the conservation and availability of historical collections of living beings should be considered an unvalued source of information which could help to monitor legislation measures launched to ameliorate the human impact on the natural environment.
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Affiliation(s)
- Enrique Lozano-Bilbao
- Departamento de Biología Animal Y Edafología Y Geología, Unidad Departamental de Ciencias Marinas, Universidad de La Laguna, 38206, Santa Cruz de Tenerife, La Laguna, Spain.
| | - Gonzalo Lozano
- Departamento de Biología Animal Y Edafología Y Geología, Unidad Departamental de Ciencias Marinas, Universidad de La Laguna, 38206, Santa Cruz de Tenerife, La Laguna, Spain
| | - Alba Jurado-Ruzafa
- Instituto Español de Oceanografía. Centro Oceanográfico de Canarias, Dársena Pesquera S/N, 38180, Santa Cruz de Tenerife, Spain
| | - Arturo Hardisson
- Departamento de Obstetricia Y Ginecología, PediatríaMedicina Preventiva Y Salud PúblicaToxicologíaMedicina Legal Y Forense Y Parasitología. Área de Toxicología, Universidad de La Laguna, 38200, Santa Cruz de Tenerife, La Laguna, Spain
| | - Carmen Rubio
- Departamento de Obstetricia Y Ginecología, PediatríaMedicina Preventiva Y Salud PúblicaToxicologíaMedicina Legal Y Forense Y Parasitología. Área de Toxicología, Universidad de La Laguna, 38200, Santa Cruz de Tenerife, La Laguna, Spain
| | - Soraya Paz
- Departamento de Obstetricia Y Ginecología, PediatríaMedicina Preventiva Y Salud PúblicaToxicologíaMedicina Legal Y Forense Y Parasitología. Área de Toxicología, Universidad de La Laguna, 38200, Santa Cruz de Tenerife, La Laguna, Spain
| | - Verónica Martín
- Canary Health Service, 35004, Las Palmas de Gran Canaria, Spain
| | - Ángel J Gutiérrez
- Departamento de Obstetricia Y Ginecología, PediatríaMedicina Preventiva Y Salud PúblicaToxicologíaMedicina Legal Y Forense Y Parasitología. Área de Toxicología, Universidad de La Laguna, 38200, Santa Cruz de Tenerife, La Laguna, Spain
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Silva ARR, Malheiro C, Loureiro S, González-Alcaraz MN. Toxicity of historically metal(loid)-contaminated soils to Folsomia candida under the influence of climate change alterations. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 305:119256. [PMID: 35395349 DOI: 10.1016/j.envpol.2022.119256] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 03/25/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Global warming is drastically altering the climate conditions of our planet. Soils will be among the most affected components of terrestrial ecosystems, especially in contaminated areas. In this study we investigated if changes in climate conditions (air temperature and soil moisture) affect the toxicity of historically metal(loid)-contaminated soils to the invertebrate Folsomia candida, followed by an assessment of its recovery capacity. Ecotoxicity tests (assessing survival, reproduction) were performed in field soils affected by metal(loid)s under different climate scenarios, simulated by individually changing air temperature or soil moisture conditions. The scenarios tested were: standard conditions (20°C + 50% soil water holding capacity-WHC); increased air temperature (daily fluctuation of 20-30°C + 50% WHC); soil drought (20°C + 25% WHC); soil flood (20°C + 75% WHC). Recovery potential was assessed under standard conditions in clean soil. Increased temperature was the major climate condition negatively affecting collembolans performance (decreased survival and reproduction), regardless of metal(loid) contamination. Drought and flood conditions presented less pronounced effects. When it was possible to move to the recovery phase (enough juveniles in exposure phase), F. candida was apparently able to recover from the exposure to metal(loid) contamination and/or climate alterations. The present study showed that forecasted climate alterations in areas already affected by contamination should be considered to improve environmental risk assessment.
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Affiliation(s)
- Ana Rita R Silva
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Portugal.
| | - Catarina Malheiro
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Portugal
| | - Susana Loureiro
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Portugal
| | - M Nazaret González-Alcaraz
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Portugal; Department of Agricultural Engineering of the E.T.S.I.A. & Soil Ecology and Biotechnology Unit of the Institute of Plant Biotechnology, Technical University of Cartagena, 30203 Cartagena, Spain
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8
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Rodríguez-Seijo A, Soares C, Ribeiro S, Amil BF, Patinha C, Cachada A, Fidalgo F, Pereira R. Nano-Fe 2O 3 as a tool to restore plant growth in contaminated soils - Assessment of potentially toxic elements (bio)availability and redox homeostasis in Hordeum vulgare L. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127999. [PMID: 34896708 DOI: 10.1016/j.jhazmat.2021.127999] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/19/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
This work aimed to evaluate the potential of Fe2O3 nanoparticles (nano-Fe2O3) to alleviate potentially toxic elements (PTEs) - induced stress in barley plants (Hordeum vulgare L.), focusing on bioaccumulation patterns and on plant growth and redox homeostasis. To achieve this goal, plants grew in two agricultural soils, contaminated by different levels of PTEs, collected from an industrial area, previously amended, or not, with 1% (w/w) nano-Fe2O3. After 14 d of growth, biometric parameters were evaluated, along with the analysis of PTEs bioaccumulation and biochemical endpoints. After exposure to contaminated soils, plant development was greatly affected, as evidenced by significant decreases in root length and biomass production. However, upon co-treatment with nano-Fe2O3, lower inhibitory effects on biometric parameters were observed. Regarding the oxidative damage, both soils led to increases in lipid peroxidation and superoxide anion concentration, though hydrogen peroxide levels were only increased in the most contaminated soil. In general, these changes in the oxidative stress markers were accompanied by an upregulation of different antioxidant mechanisms, whose efficiency was even more powerful upon soil amendment with nano-Fe2O3, thus lowering PTEs-induced oxidative damage. Altogether, the present study revealed that nano-Fe2O3 can protect the growth of barley plants under contaminated soils.
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Affiliation(s)
- Andrés Rodríguez-Seijo
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal.
| | - Cristiano Soares
- Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal; GreenUPorto-Sustainable Agrifood Production Research Centre and INOV4AGRO, Rua do Campo Alegre s/n, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal.
| | - Sónia Ribeiro
- Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal; GreenUPorto-Sustainable Agrifood Production Research Centre and INOV4AGRO, Rua do Campo Alegre s/n, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal
| | - Berta Ferreiro Amil
- GreenUPorto-Sustainable Agrifood Production Research Centre and INOV4AGRO, Rua do Campo Alegre s/n, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal; Faculdade de Bioloxía, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Carla Patinha
- Department of Geosciences & GEOBIOTEC, University of Aveiro, Campus de Santiago, Aveiro 3810-193, Portugal
| | - Anabela Cachada
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal
| | - Fernanda Fidalgo
- Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal; GreenUPorto-Sustainable Agrifood Production Research Centre and INOV4AGRO, Rua do Campo Alegre s/n, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal
| | - Ruth Pereira
- Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal; GreenUPorto-Sustainable Agrifood Production Research Centre and INOV4AGRO, Rua do Campo Alegre s/n, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal
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9
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Aziz I, Mujeeb A. Halophytes for phytoremediation of hazardous metal(loid)s: A terse review on metal tolerance, bio-indication and hyperaccumulation. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127309. [PMID: 34600383 DOI: 10.1016/j.jhazmat.2021.127309] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/15/2021] [Accepted: 09/18/2021] [Indexed: 06/13/2023]
Abstract
Phytoremediation is a cost-effective and environment friendly method for cleaning metal(loid)s from contaminated soils. Species with exceptionally higher shoot metal concentrations (hyperaccumulators) seem ideal for phytoremediation, though some metal tolerant species with 'above normal' values with higher translocation factor (TF) may also serve the purpose. Halophytes not only remove salts and metalloids from soils but may also be cultivated as non-conventional crops. Nurturing halophytes requires precise understanding of their nature and efficient management for sustainable use. Species with low metal concentrations in their edible parts (especially leaves) may be grown as forage and fodder, but those with metal hyperaccumulation could prove fatal due to their serious health hazards. Like other metallophytes, redundant use of the term 'metal hyperaccumulation' among halophytes needs to be revisited for its ambiguity and potential pitfalls. Similarly, understanding of metal tolerance and shoot accumulation nature of halophytes is needed prior to their use. This review is an attempt to compare halophytes with potential of metal bioindication, phytostabilization and hyperaccumulation (as per definition) as well as their 'obligate' and 'facultative' nature for appropriate uses.
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Affiliation(s)
- Irfan Aziz
- Dr M Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi 75270, Pakistan.
| | - Amtul Mujeeb
- Dr M Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi 75270, Pakistan
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Bio S, Nunes B. Twists and turns of an oyster's life: effects of different depuration periods on physiological biochemical functions of oysters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:29601-29614. [PMID: 33559825 DOI: 10.1007/s11356-021-12683-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
Aquaculture activities are often established in the vicinity of highly populated, potentially contaminated areas. Animals cultured at such locations, namely bivalves, are frequently used as test organisms in ecotoxicological testing. In this case, a period of depuration is required to allow the normalization of physiological processes, which are likely to be altered after exposure to a multiplicity of waterborne contaminants occurring in the wild. One of the most important species in modern marine aquaculture is the oyster species Crassostrea gigas. The aim of this study was to assess if the current depuration time frame of 24 h (adopted by most aquaculture facilities), is long enough to permit oysters to revert potential toxic effects exerted by environmental contaminants, allowing their use in laboratory-based ecotoxicological studies. The selected approach involved the monitoring of biochemical (antioxidant defence, oxidative damage, phase II metabolism, and neurological homeostasis) and physiological (condition index) parameters, along a period of 42 days. The obtained results showed that a period of 24 h does not revert any of the potential toxic effects caused by environmental contaminants to which animals may have been previously subjected; even a period of 42 days was not long enough for the oysters to completely normalize the levels of their antioxidant defences, namely total GPx activity, which increased over time. Lipid peroxidation was also increased during the depuration period, and the activity of the metabolic isoenzymes GSTs was significantly decreased. Furthermore, AChE activity measured in the adductor muscle of oysters was increased over time. These assumptions suggest that a period of depuration longer than 24 h is mandatory to obtain adequate test organisms of this oyster species, to be used for ecotoxicological testing purposes.
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Affiliation(s)
- Sofia Bio
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Bruno Nunes
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
- Centro de Estudos do Ambiente e do Mar (CESAM), Universidade de Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
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11
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Vieira HC, Bordalo MD, Figueroa AG, Soares AMVM, Morgado F, Abreu SN, Rendón-von Osten J. Mercury distribution and enrichment in coastal sediments from different geographical areas in the North Atlantic Ocean. MARINE POLLUTION BULLETIN 2021; 165:112153. [PMID: 33607451 DOI: 10.1016/j.marpolbul.2021.112153] [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: 12/23/2020] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 06/12/2023]
Abstract
This study evaluated mercury (Hg) in three coastal areas in the North Atlantic Ocean (Azores archipelago, Northwest Portugal and Southeast Mexico) and calculated their enrichment factor and geoaccumulation index. Hg presented greater affinity with fine sediment fraction. In all sampling areas the sites with proximity to possible Hg hotspots presented increased [Hg] in fine sediments. However, this fraction only represents less than 1% of the whole sediment, resulting in a significantly lower [Hg] in the total sediment fraction. After comparing [Hg] in the fine fraction and the values established by the Sediment Quality Guidelines, two sites in the Azores exceeded these values. Nevertheless, when considering the total sediment fraction, adverse biological effects are not expected to occur. Finally, both enrichment factor and geoaccumulation index indicated that the Hg present in 86% comes from natural sources and only sampling sites close to potential hotspots showed some degree of enrichment and contamination.
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Affiliation(s)
- H C Vieira
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M D Bordalo
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - A G Figueroa
- EPOMEX Institute, Autonomous University of Campeche, Campeche, Mexico
| | - A M V M Soares
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - F Morgado
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - S N Abreu
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
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12
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Stoichev T, Coelho JP, De Diego A, Valenzuela MGL, Pereira ME, de Chanvalon AT, Amouroux D. Multiple regression analysis to assess the contamination with metals and metalloids in surface sediments (Aveiro Lagoon, Portugal). MARINE POLLUTION BULLETIN 2020; 159:111470. [PMID: 32692677 DOI: 10.1016/j.marpolbul.2020.111470] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 07/02/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
An innovative multiple regression analysis was used to evaluate metal/metalloid contamination in the surface sediments of a coastal lagoon. The concentrations of metals/metalloids were represented as a function of geochemical characteristics of the sediments (fine fraction, concentrations of organic carbon, Ca, Al, Mn) and distances between sampling points. The effect of distances on the concentrations were negligible for Li, Co, Ni, Ba, V, Cr, and only geochemical variables specific for each element explained its spatial variation. The concentrations of As, Cu, Zn and Pb were influenced by both geochemical and geographical distance variables, the latter representing the anthropogenic influence and the extent of transport of contaminants away from the upstream source. Enrichment of the sediment with Ba, As, Co, Cr and V was determined mainly by enrichment with Mn. The proposed approach is supplementary to the traditional utilization of enrichment factors, and is better suited for systems with anthropogenic influence.
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Affiliation(s)
- Teodor Stoichev
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros de Leixoes, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
| | - João Pedro Coelho
- CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Alberto De Diego
- Department of Analytical Chemistry, Faculty of Science and Technology, University of Basque Country, 48080 Bilbao, Spain
| | - Maria Gabriela Lobos Valenzuela
- Laboratory of Analytical and Environmental Chemistry, Institute of Chemistry and Biochemistry, University of Valparaíso, Valparaíso, Chile
| | - Maria Eduarda Pereira
- Department of Chemistry & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Aubin Thibault de Chanvalon
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, Institut des Sciences Analytiques et de Physico-chimie pour l'Environnement et les matériaux, Pau, France
| | - David Amouroux
- Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, Institut des Sciences Analytiques et de Physico-chimie pour l'Environnement et les matériaux, Pau, France
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13
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Links between Cognitive Status and Trace Element Levels in Hair for an Environmentally Exposed Population: A Case Study in the Surroundings of the Estarreja Industrial Area. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16224560. [PMID: 31752166 PMCID: PMC6888438 DOI: 10.3390/ijerph16224560] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/13/2019] [Accepted: 11/15/2019] [Indexed: 02/07/2023]
Abstract
In the present study, trace elements (TE) levels were evaluated in scalp hair along the continuum from healthy subjects (HS) to patients suffering from subjective memory concerns (SMC), and/or mild cognitive impairment (MCI), and those with already installed dementia (DEM) in order to: (i) assess the effects of environmental and lifestyle factors on TE concentrations and (ii) evaluate the analyzed elements as possible diagnostic biomarkers for the disease. The study involved 79 mainly permanent residents, >55 years old, from the city of Estarreja (northern Portugal), a former industrial area. The health status of the participants was assessed by means of a complete socio-demographic questionnaire and through cognitive screening tests, namely the Mini-Mental State Examination (MMSE). The test scores were categorized and used in the statistical analysis. Hair samples were collected and analyzed by inductively coupled plasma-mass spectrometry (ICP-MS) ICP-MS for selected TE. Dementia appears to be associated with higher age, the female gender, lower education level, and longer residence time in the study area. In addition, most of the participants diagnosed with dementia frequently consume home-grown foodstuffs, some irrigated with contaminated well water. The calculation of the TE enrichment factors of soil samples collected in kitchen gardens/small farms in the vicinity of the Estarreja Chemical Complex (ECC) reinforces the degree of Hg soil contamination in the area, due to anthropogenic sources that can be a source for the population Hg exposure route among others. Mercury levels in hair differed significantly between the four individual groups (HS, SMC, MCI, and DEM), increasing from healthy to dementia participants. Improved diagnostic results can be obtained using hair TE signatures coupled with MMSE scores. This strategy may prove useful for predictive diagnosis in population screening for cognitive impairment.
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Pastukhov MV, Poletaeva VI, Tirskikh EN. Long-term dynamics of mercury pollution of the Bratsk reservoir bottom sediments, Baikal region, Russia. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/1755-1315/321/1/012041] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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15
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Cachada A, Pato P, Ferreira da Silva E, Patinha C, Carreira RS, Pardal M, Duarte AC. Spatial distribution of organic and inorganic contaminants in Ria de Aveiro Lagoon: A fundamental baseline dataset. Data Brief 2019; 25:104285. [PMID: 31463345 PMCID: PMC6706762 DOI: 10.1016/j.dib.2019.104285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/07/2019] [Accepted: 07/12/2019] [Indexed: 10/26/2022] Open
Abstract
This paper presents baseline data of sediments characterization from Ria de Aveiro lagoon (Portugal). Twenty-two intertidal surface sediments were collected and analysed for their pseudo-total content of 25 major and trace elements and for their total content of PAHs (Sum16) and PCBs (Sum13). The fine fraction percentage and total organic carbon content were also determined. Ria de Aveiro Lagoon has been the target of several studies during the last decades, and it has been pointed out as a hot spot in terms of contamination García-Seoane et al., 2016. Nevertheless, data about sediments contamination is mostly focused on Hg Lillebø et al.,2011, and in a specific area of the lagoon Grilo et al., 2013, and there is not a clear and global picture about the spatial distribution of other elements, and especially of organic contaminants. Thus, this baseline dataset is of utmost importance for researchers and planners and it can be used to monitor the effect of disturbances, such as: dredging activities; hydrodynamic changes (either due to human activities or extreme events); external inputs (new discharges from industries and wastewater plants, etc).
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Affiliation(s)
- Anabela Cachada
- CIIMAR-UP, Terminal de Cruzeiros do Porto de Leixões, 4450-208 Matosinhos, Portugal.,Biology Department, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
| | - Pedro Pato
- CESAM & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | - Carla Patinha
- Geobiotec & Department of Geosciences, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Renato S Carreira
- LabMAM, Chemistry Department, Pontifical Catholic University, 22451-900, Rio de Janeiro, Brazil
| | - Miguel Pardal
- CFE & Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Armando C Duarte
- CESAM & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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16
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Gadelha JR, Rocha AC, Camacho C, Eljarrat E, Peris A, Aminot Y, Readman JW, Boti V, Nannou C, Kapsi M, Albanis T, Rocha F, Machado A, Bordalo A, Valente LMP, Nunes ML, Marques A, Almeida CMR. Persistent and emerging pollutants assessment on aquaculture oysters (Crassostrea gigas) from NW Portuguese coast (Ria De Aveiro). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 666:731-742. [PMID: 30812007 DOI: 10.1016/j.scitotenv.2019.02.280] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/16/2019] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
The study aim was to determine a range of relevant persistent and emerging pollutants in oysters produced in an aquaculture facility located in an important production area, to assure their safety for human consumption. Pollutants, including 16 PAHs, 3 butyltins (BTs), 29 flame retardants (FRs, including organophosphate and halogenated FRs), 35 pesticides (including 9 pyrethroid insecticides) and 13 personal care products (PCPs, including musks and UV filters), were determined in oysters' tissues collected during one year in four seasonal sampling surveys. The seasonal environmental pollution on the production site was evaluated by water and sediment analysis. Furthermore, oysters' nutritional quality was also assessed and related with the consumption of healthy seafood, showing that oysters are a rich source of protein with low fat content and with a high quality index all year around. Results showed that most analysed pollutants were not detected either in oyster tissues or in environmental matrixes (water and sediments). The few pollutants detected in oyster tissues, including both regulated and non-legislated pollutants, such as a few PAHs (fluorene, phenanthrene, anthracene, fluoranthene, pyrene and indenopyrene), FRs (TPPO, TDCPP, DCP, BDE-47, BDE-209 and Dec 602) and PCPs (galaxolide, galaxolidone, homosalate and octocrylene), were present at low levels (in the ng/g dw range) and did not represent a significant health risk to humans. The observed seasonal variations related to human activities (e.g. tourism in summer) highlights the need for environmental protection and sustainable resource exploration for safe seafood production.
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Affiliation(s)
- Juliana R Gadelha
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - A Cristina Rocha
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; MARE-UC, Incubadora de Empresas da Figueira da Foz, Parque Industrial e Empresarial da Figueira da Foz (Laboratório MAREFOZ), Rua das Acácias Lote 40A, 3090-380 Figueira da Foz, Portugal
| | - Carolina Camacho
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; Division of Aquaculture, Seafood Upgrading and Bioprospection, Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisboa, Portugal
| | - Ethel Eljarrat
- Institute of Environmental Assessment and Water Research, Department of Environmental Chemistry (IDAEA-CSIC), Jordi Girona, 18, 08034 Barcelona, Spain
| | - Andrea Peris
- Institute of Environmental Assessment and Water Research, Department of Environmental Chemistry (IDAEA-CSIC), Jordi Girona, 18, 08034 Barcelona, Spain
| | - Yann Aminot
- Biogeochemistry Research Centre, Plymouth University, Plymouth, United Kingdom
| | - James W Readman
- Biogeochemistry Research Centre, Plymouth University, Plymouth, United Kingdom
| | - Vasiliki Boti
- Laboratory of Analytical Chemistry, Chemistry Department, University of Ioannina, Panepistimioupolis, Ioannina GR 45110, Greece
| | - Christina Nannou
- Laboratory of Analytical Chemistry, Chemistry Department, University of Ioannina, Panepistimioupolis, Ioannina GR 45110, Greece
| | - Margarita Kapsi
- Laboratory of Analytical Chemistry, Chemistry Department, University of Ioannina, Panepistimioupolis, Ioannina GR 45110, Greece
| | - Triantafyllos Albanis
- Laboratory of Analytical Chemistry, Chemistry Department, University of Ioannina, Panepistimioupolis, Ioannina GR 45110, Greece
| | - Filipa Rocha
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Ana Machado
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal
| | - Adriano Bordalo
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; Institute of Biomedical Sciences (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Luísa M P Valente
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; Institute of Biomedical Sciences (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Maria Leonor Nunes
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; Division of Aquaculture, Seafood Upgrading and Bioprospection, Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisboa, Portugal
| | - António Marques
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal; Division of Aquaculture, Seafood Upgrading and Bioprospection, Portuguese Institute for the Sea and Atmosphere, I.P. (IPMA), Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisboa, Portugal
| | - C Marisa R Almeida
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208 Matosinhos, Portugal.
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17
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Stoichev T, Tessier E, Coelho JP, Lobos Valenzuela MG, Pereira ME, Amouroux D. Multiple regression analysis to assess the spatial distribution and speciation of mercury in surface sediments of a contaminated lagoon. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:715-724. [PMID: 30682658 DOI: 10.1016/j.jhazmat.2018.12.109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 12/12/2018] [Accepted: 12/27/2018] [Indexed: 06/09/2023]
Abstract
The concentrations of inorganic mercury (IHg) and methylmercury (MeHg) in surface sediments from the contaminated Aveiro Lagoon (Portugal) were determined by species-specific isotope dilution analysis. Different behaviour of IHg and MeHg was observed based upon multiple regression analysis, including geochemical characteristics of the surface sediments (fine fraction, concentrations of organic matter and metals) and non-Euclidean distances between sampling points. This data treatment method was valid over the entire concentration range of IHg and MeHg, allowing robust quantitative evaluation with respect to extrapolation. For IHg, there was statistical separation of the dispersion away from the contamination source and of Al concentration in the sediments. The MeHg concentrations followed those of IHg at high concentrations. The geochemical variables, such as concentrations of Ca (marine influence proxy), Mn and organic matter, were necessary to describe the behaviour of MeHg across the whole concentration range. The models for MeHg demonstrated that, close to the mouth of the lagoon, net production of MeHg was higher. In future, multiple regression analysis could be applied to separate and to evaluate quantitatively the effects of geochemistry and dispersion away from the contamination source in sediments contaminated with other substances.
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Affiliation(s)
- T Stoichev
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros de Leixões, Av. Norton de Matos, 4450-208 Matisinhos, Portugal.
| | - E Tessier
- CNRS/Univ Pau & Pays Adour/ E2S Uppa, Institut des Sciences Analytiques et de Physicochimie Pour L'Environnement et les Materiaux - Mira, UMR5254, 64000, PAU, France
| | - J P Coelho
- Department of Biology & CESAM & ECOMARE, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; Department of Chemistry & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - M G Lobos Valenzuela
- Laboratory of Analytical and Environmental Chemistry, Institute of Chemistry and Biochemistry, University of Valparaíso, Valparaíso, Chile
| | - M E Pereira
- Department of Chemistry & CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - D Amouroux
- CNRS/Univ Pau & Pays Adour/ E2S Uppa, Institut des Sciences Analytiques et de Physicochimie Pour L'Environnement et les Materiaux - Mira, UMR5254, 64000, PAU, France.
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18
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Cabral Pinto MMS, Marinho-Reis AP, Almeida A, Ordens CM, Silva MMVG, Freitas S, Simões MR, Moreira PI, Dinis PA, Diniz ML, Ferreira da Silva EA, Condesso de Melo MT. Human predisposition to cognitive impairment and its relation with environmental exposure to potentially toxic elements. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2018; 40:1767-1784. [PMID: 28281140 DOI: 10.1007/s10653-017-9928-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 02/27/2017] [Indexed: 06/06/2023]
Abstract
New lines of evidence suggest that less than 10% of neurodegenerative diseases have a strict genetic aetiology and other factors may be prevalent. Environmental exposures to potentially toxic elements appear to be a risk factor for Parkinson's, Alzheimer's and sclerosis diseases. This study proposes a multidisciplinary approach combining neurosciences, psychology and environmental sciences while integrating socio-economic, neuropsychological, environmental and health data. We present the preliminary results of a neuropsychological assessment carried out in elderly residents of the industrial city of Estarreja. A battery of cognitive tests and a personal questionnaire were administered to the participants. Multivariate analysis and multiple linear regression analysis were used to identify potential relationships between the cognitive status of the participants and environmental exposure to potentially toxic elements. The results suggest a relationship between urinary PTEs levels and the incidence of cognitive disorders. They also point towards water consumption habits and profession as relevant factors of exposure. Linear regression models show that aluminium (R 2 = 38%), cadmium (R 2 = 11%) and zinc (R 2 = 6%) are good predictors of the scores of the Mini-Mental State Examination cognitive test. Median contents (µg/l) in groundwater are above admissible levels for drinking water for aluminium (371), iron (860), manganese (250), and zinc (305). While the World Health Organization does not provide health-based reference values for aluminium, results obtained from this study suggest that it may have an important role in the cognitive status of the elderly. Urine proved to be a suitable biomarker of exposure both to elements with low and high excretion rates.
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Affiliation(s)
- Marina M S Cabral Pinto
- Department of Geosciences, Geobiotec Research Centre, University of Aveiro, 3810-193, Aveiro, Portugal.
- CNC-Center for Neuroscience and Cell Biology, Faculty of Medicine, University of Coimbra, 3030-548, Coimbra, Portugal.
- Department of Earth Sciences, University of Coimbra, 3030-790, Coimbra, Portugal.
| | - A Paula Marinho-Reis
- Department of Geosciences, Geobiotec Research Centre, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Agostinho Almeida
- LAQV/REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, Porto University, 4050-313, Porto, Portugal
| | - Carlos M Ordens
- University College London Australia, Adelaide, South Australia, 5000, Australia
| | - Maria M V G Silva
- Department of Earth Sciences, University of Coimbra, 3030-790, Coimbra, Portugal
- CEMUC, University of Coimbra, 3030-790, Coimbra, Portugal
| | - Sandra Freitas
- CNC-Center for Neuroscience and Cell Biology, Faculty of Medicine, University of Coimbra, 3030-548, Coimbra, Portugal
- Centro de Investigação do Núcleo de Estudos e Intervenção Cognitivo Comportamental (CINEICC), Universidade de Coimbra, Coimbra, Portugal
| | - Mário R Simões
- Centro de Investigação do Núcleo de Estudos e Intervenção Cognitivo Comportamental (CINEICC), Universidade de Coimbra, Coimbra, Portugal
- Faculdade de Psicologia e de Ciências da Educação da Universidade de Coimbra (FPCE-UC), Coimbra, Portugal
| | - Paula I Moreira
- CNC-Center for Neuroscience and Cell Biology, Faculty of Medicine, University of Coimbra, 3030-548, Coimbra, Portugal
- Laboratory of Physiology, Faculty of Medicine, University of Coimbra, 3000-548, Coimbra, Portugal
| | - Pedro A Dinis
- Department of Earth Sciences, University of Coimbra, 3030-790, Coimbra, Portugal
- MARE - Marine and Environmental Sciences Centre, University of Coimbra, 3030-790, Coimbra, Portugal
| | - M Luísa Diniz
- Department of Geosciences, Geobiotec Research Centre, University of Aveiro, 3810-193, Aveiro, Portugal
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Marinho Reis AP, Cave M, Sousa AJ, Wragg J, Rangel MJ, Oliveira AR, Patinha C, Rocha F, Orsiere T, Noack Y. Lead and zinc concentrations in household dust and toenails of the residents (Estarreja, Portugal): a source-pathway-fate model. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2018; 20:1210-1224. [PMID: 30084851 DOI: 10.1039/c8em00211h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This paper describes a methodology developed to assess and apportion probable indoor and outdoor sources of potentially toxic elements while identifying chemical signatures in the household dust collected from private homes in an industrial city (Estarreja, central Portugal). Oral bioaccessibility estimates and the chemical composition of toenail clippings were used to assess indoor dust ingestion as a potential exposure pathway and further investigate exposure-biomarker relationships. Indoor and paired outdoor dust samples were collected from each household. A total of 30 individuals, who provided toenail clippings and a self-reported questionnaire, were recruited for the study. Total concentrations of 34 elements, including lead and zinc, were determined in washed toenail samples and household dust via Inductively Coupled Plasma-Mass Spectrometry. The oral bioaccessibility was estimated using the Unified BARGE Method. The enrichment factor shows that lead was enriched (10 < EF < 100) while zinc (EF > 100) was anomalously enriched in the household dust, thus indicating potential exposure in the home environment. The results from principal component analysis coupled to cluster analysis and linear discriminant analysis suggested that mixed contamination derived from multiple sources with a predominance of biomass burning. Stepwise multiple linear regression analysis was performed to model toenail data using the indoor dust elemental composition. Whereas the model obtained for lead was not reliable, indoor dust zinc and antimony contents arose as good predictors of toenail zinc. The exposure-biomarker relationships seem to be influenced by the oral bioaccessibility of the elements.
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Affiliation(s)
- A Paula Marinho Reis
- GEOBIOTEC, Departmento de Geociências, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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Bueno-Pardo J, García-Seoane E, Sousa AI, Coelho JP, Morgado M, Frankenbach S, Ezequiel J, Vaz N, Quintino V, Rodrigues AM, Leandro S, Luis A, Serôdio J, Cunha MR, Calado AJ, Lillebø A, Rebelo JE, Queiroga H. Trophic web structure and ecosystem attributes of a temperate coastal lagoon (Ria de Aveiro, Portugal). Ecol Modell 2018. [DOI: 10.1016/j.ecolmodel.2018.03.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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21
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Stoichev T, Tessier E, Almeida CMR, Basto MCP, Vasconcelos VM, Amouroux D. Flux model to estimate the transport of mercury species in a contaminated lagoon (Ria de Aveiro, Portugal). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:17371-17382. [PMID: 29654462 DOI: 10.1007/s11356-018-1925-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 04/02/2018] [Indexed: 06/08/2023]
Abstract
The concentrations of dissolved and particulate inorganic mercury (IHg(II)) and methylmercury (MeHg) from the contaminated Laranjo Bay (main freshwater discharge from the Antuã River) were measured by species-specific isotope dilution during six sampling campaigns at high and at low tide. Different effective riverine concentrations were calculated, based on salinity profiles, for specific hydrological conditions. The export fluxes of total Hg and MeHg (324 and 1.24 mol year-1, respectively) from the bay to the rest of the Aveiro Lagoon are much higher than the input fluxes from the Hg source (3.9 and 0.05 mol year-1) and from the Antuã River (10.4 and 0.10 mol year-1). Resuspension of contaminated sediments from Laranjo Bay is crucial for the transport of both IHg(II) and MeHg. Methylation and/or selective enrichment into biogenic particles is responsible for the mobilization of MeHg. Sorption of dissolved IHg(II) onto suspended particles limits its export flux. This is one of the rarest examples where both speciation fluxes and partitioning of mercury are studied in a contaminated coastal environment. Despite the lower fraction of total MeHg (relative to total Hg), the contaminated lagoon may have an impact on coastal areas, particularly if change in the lagoon geometry occurs, due to sea level rise.
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Affiliation(s)
- Teodor Stoichev
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal.
| | - Emmanuel Tessier
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, CNRS/UNIV PAU & PAYS ADOUR, UMR5254, Mira, 64000, Pau, France
| | - Cristina Marisa R Almeida
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
| | - Maria Clara P Basto
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
- Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - Vitor M Vasconcelos
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208, Matosinhos, Portugal
- Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - David Amouroux
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, CNRS/UNIV PAU & PAYS ADOUR, UMR5254, Mira, 64000, Pau, France
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22
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Almeida Â, Freitas R, Calisto V, Esteves VI, Schneider RJ, Soares AMVM, Figueira E, Campos B, Barata C. Effects of carbamazepine and cetirizine under an ocean acidification scenario on the biochemical and transcriptome responses of the clam Ruditapes philippinarum. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:857-868. [PMID: 29353802 DOI: 10.1016/j.envpol.2017.12.121] [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: 10/22/2017] [Revised: 12/20/2017] [Accepted: 12/31/2017] [Indexed: 06/07/2023]
Abstract
Several works evaluated the toxicity of pharmaceutical drugs and climate related changes in invertebrates but few explored the combined effects of both stressors, namely considering their mode of action (MoA). Carbamazepine (CBZ) and cetirizine (CTZ) are pharmaceutical drugs detected in the environment and the toxicity derived from the combined effects of these drugs with ocean acidification (OA) is poorly explored. Thus, the present study investigated the biochemical parameters related to an oxidative stress response and the transcription of genes related to the MoA of CBZ (1.0 μg/L) and CTZ (0.6 μg/L) in the clam Ruditapes philippinarum chronically exposed (28 days) to control (7.8) and low (7.5) pH conditions. The results obtained showed that despite the clams accumulated both drugs, at low pH the clams exposed to CTZ decreased drug concentration and BCF values (CTZ uptake: 2.0 ± 0.5 ng/g fresh weight; BCF: 3.8 ± 0.9) in comparison with clams exposed to control pH (CTZ uptake: 2.9 ± 0.3 ng/g fresh weight; BCF: 5.5 ± 0.6). No oxidative stress was induced by the exposure to CBZ or CTZ at each pH level, but the transcription of several genes related with the MoA (neurotransmission, immunity and biomineralization) was altered by low pH, drug exposure and the combination of both stressors. At both pH conditions, CBZ increased the transcription of GABA receptor gene (neurotransmission) and CTZ led to a decrease of Perlucin gene (biomineralization) transcription. The transcription of MyD88 gene (immunity) decreased at low pH (7.5) combined with drug exposure (CBZ or CTZ). Thus, it was highlighted that the interaction of drug exposure and low pH conditions can change bivalves' sensitivity to drugs or alter drugs toxicity.
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Affiliation(s)
- Ângela Almeida
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Vânia Calisto
- Chemistry Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Valdemar I Esteves
- Chemistry Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rudolf J Schneider
- BAM Federal Institute for Materials Research and Testing, Richard-Willstaetter -Str. 11, D-12489 Berlin, Germany
| | | | - Etelvina Figueira
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Bruno Campos
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18, 08034 Barcelona, Spain
| | - Carlos Barata
- Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18, 08034 Barcelona, Spain
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Castro D, Mieiro CL, Coelho JP, Guilherme S, Marques A, Santos MA, Duarte AC, Pereira E, Pacheco M. Addressing the impact of mercury estuarine contamination in the European eel (Anguilla anguilla L., 1758) - An early diagnosis in glass eel stage based on erythrocytic nuclear morphology. MARINE POLLUTION BULLETIN 2018; 127:733-742. [PMID: 29475718 DOI: 10.1016/j.marpolbul.2017.12.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 12/01/2017] [Accepted: 12/11/2017] [Indexed: 06/08/2023]
Abstract
The decline of the European eel (Anguilla anguilla L., 1758) population throughout Europe has been partially attributed to pollution. As glass eel estuarine migration may represent a considerable threat, the impact of mercury (Hg) contamination at this stage was evaluated through an in situ experiment (7days). Total Hg (tHg) bioaccumulation was evaluated concomitantly with erythrocytic nuclear morphology alterations: erythrocytic nuclear abnormalities assay (ENA), frequency of immature erythrocytes (IE) and the erythrocytic maturity index (EMI). The ENA results suggested a genotoxic pressure at the most contaminated sites, in line with the tHg increase. The EMI data, together with IE frequency, showed that fish exposed to high levels of Hg exhibited alterations of haematological dynamics, translated into an erythropoiesis increment. Despite the presence of these compensatory mechanisms, the present findings suggest a harmful impact of Hg on genome integrity at this early development stage, potentially affecting eels' condition and ultimately the population sustainability.
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Affiliation(s)
- D Castro
- Department of Chemistry & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - C L Mieiro
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - J P Coelho
- Department of Chemistry & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua das Bragas, 289, 4050-123 Porto, Portugal
| | - S Guilherme
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - A Marques
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - M A Santos
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - A C Duarte
- Department of Chemistry & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - E Pereira
- Department of Chemistry & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - M Pacheco
- Department of Biology & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
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Pellegrini E, Petranich E, Acquavita A, Canário J, Emili A, Covelli S. Mercury uptake by halophytes in response to a long-term contamination in coastal wetland salt marshes (northern Adriatic Sea). ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2017; 39:1273-1289. [PMID: 28555279 DOI: 10.1007/s10653-017-9981-y] [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: 12/21/2016] [Accepted: 05/15/2017] [Indexed: 06/07/2023]
Abstract
Mercury (Hg) distribution in saltmarsh sediments and in three selected halophytes (Limonium narbonense, Sarcocornia fruticosa and Atriplex portulacoides) of a wetland system (Marano and Grado Lagoon, Italy) following a contamination gradient in sediments was investigated. The Hg uptake was evaluated at the root system level by calculating the enrichment factor (EF) and in the aboveground tissues by means of the translocation factor (TF). The related methylmercury (MeHg) concentrations in the halophytes were also investigated with regard to the location of the sites and their degree of contamination. Hg concentration in halophytes seemed poorly correlated both with the total Hg in rhizo-sediments and with the specific plant considered, supporting the evidence that the chemico-physical parameters of sediments could significantly affect metal availability for plants. Hg concentrations in roots increased with depth and were 20-fold higher than content measured in related rhizo-sediments (high EF). A low content of Hg is translocated in aboveground tissues (very low TF values), thus highlighting a kind of avoidance strategy of these halophytes against Hg toxicity. MeHg values were comparable between the two sites and among species, but the translocation from below- to aboveground plant tissues was more active.
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Affiliation(s)
- E Pellegrini
- Department of Agro-Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 206, 33100, Udine, Italy
| | - E Petranich
- Department of Mathematics and Geosciences, University of Trieste, Via Weiss 2, 34128, Trieste, Italy
| | - A Acquavita
- ARPA FVG, Environmental Protection Agency of Friuli Venezia Giulia, Via Cairoli 14, 33057, Palmanova, Udine, Italy
| | - J Canário
- Centro de Química Estrutural, Instítuto Superíor Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - A Emili
- Department of Mathematics and Geosciences, University of Trieste, Via Weiss 2, 34128, Trieste, Italy
| | - S Covelli
- Department of Mathematics and Geosciences, University of Trieste, Via Weiss 2, 34128, Trieste, Italy.
- Co.N.I.S.Ma. Consorzio Nazionale Interuniversitario per le Scienze del Mare, Piazzale Flaminio 9, 00196, Rome, Italy.
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25
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Lopes ML, Rodrigues AM, Quintino V. Can the leaf-bag technique detect benthic macrofauna responses to sediment contamination by metals and metalloids in estuaries? MARINE POLLUTION BULLETIN 2017; 124:171-180. [PMID: 28733039 DOI: 10.1016/j.marpolbul.2017.07.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 06/20/2017] [Accepted: 07/12/2017] [Indexed: 06/07/2023]
Abstract
The Estarreja Channel, Ria de Aveiro, Portugal, received industrial effluents for over 70years. Despite the discharges stopped a decade ago, a recent study showed negative ecological effects still associated with the metal and metalloid contaminated sediments. In contaminated versus reference channels, this study compared the benthic macrofauna collected with corer and mesh-bags for community structure and synthesis descriptors, namely taxa richness (S), Shannon-Wiener diversity (H'), taxonomic (AMBI and M-AMBI) and non-taxonomic (ISS) biotic indices and functional indicators (decomposition rates). The corer infauna dominated community and the associated S, H', M-AMBI and ISS indices detected significant differences between contaminated and reference channels, otherwise undistinguished by the decomposition rates and the mesh-bags epifauna dominated community and associated indices. This suggests that sediment contamination in the deeper layers is not being transferred to the surface layers, explaining the non-affectation of the benthic macrofauna communities sampled in the leaf-bags.
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Affiliation(s)
- Marta Lobão Lopes
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ana Maria Rodrigues
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Victor Quintino
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
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26
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Lenormand T, Nougué O, Jabbour-Zahab R, Arnaud F, Dezileau L, Chevin LM, Sánchez MI. Resurrection ecology in Artemia. Evol Appl 2017; 11:76-87. [PMID: 29302273 PMCID: PMC5748519 DOI: 10.1111/eva.12522] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 07/10/2017] [Indexed: 12/25/2022] Open
Abstract
Resurrection ecology (RE) is a very powerful approach to address a wide range of question in ecology and evolution. This approach rests on using appropriate model systems, and only few are known to be available. In this study, we show that Artemia has multiple attractive features (short generation time, cyst bank and collections, well‐documented phylogeography, and ecology) for a good RE model. We show in detail with a case study how cysts can be recovered from sediments to document the history and dynamics of a biological invasion. We finally discuss with precise examples the many RE possibilities with this model system: adaptation to climate change, to pollution, to parasites, to invaders and evolution of reproductive systems.
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Affiliation(s)
- Thomas Lenormand
- CEFE UMR 5175 CNRS, Université de Montpellier, Université Paul-Valéry Montpellier Montpellier Cedex 5 France
| | - Odrade Nougué
- CEFE UMR 5175 CNRS, Université de Montpellier, Université Paul-Valéry Montpellier Montpellier Cedex 5 France
| | - Roula Jabbour-Zahab
- CEFE UMR 5175 CNRS, Université de Montpellier, Université Paul-Valéry Montpellier Montpellier Cedex 5 France
| | - Fabien Arnaud
- Laboratoire EDYTEM UMR 5204 du CNRS, Environnements, Dynamiques et Territoires de la Montagne, Université de SavoieLe Bourget du Lac Cedex France
| | - Laurent Dezileau
- Géosciences Montpellier, UMR 5243 Université de Montpellier Montpellier Cedex 05 France
| | - Luis-Miguel Chevin
- CEFE UMR 5175 CNRS, Université de Montpellier, Université Paul-Valéry Montpellier Montpellier Cedex 5 France
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Leite L, Jude-Lemeilleur F, Raymond N, Henriques I, Garabetian F, Alves A. Phylogenetic diversity and functional characterization of the Manila clam microbiota: a culture-based approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:21721-21732. [PMID: 28766142 DOI: 10.1007/s11356-017-9838-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 07/26/2017] [Indexed: 06/07/2023]
Abstract
According to the hologenome theory, the microbiota contributes to the fitness of the holobiont having an important role in its adaptation, survival, development, health, and evolution. Environmental stress also affects the microbiota and its capability to assist the holobiont in coping with stress factors. Here, we analyzed the diversity of cultivable bacteria associated with Manila clam tissues (mantle, gills, hemolymph) in two non-contaminated sites (Portugal and France) and one metal-contaminated site (Portugal). A total of 240 isolates were obtained. Representative isolates (n = 198) of the overall diversity were identified by 16S rDNA sequencing and subjected to functional characterization. Isolates affiliated with Proteobacteria, Actinobacteria, Firmicutes, and Bacteroidetes. Proteobacteria (mostly Pseudoalteromonadaceae and Vibrionaceae) were dominant in non-contaminated sites while Actinobacteria (mostly Microbacteriaceae) dominated in the metal-contaminated site. The main factor affecting the microbiota composition was contamination. No significant differences were observed between clam tissues and geographic regions. Several isolates tested positive for antibacterial activity, biofilm formation, protease, and siderophore production. The results show that the Manila clam harbors a diverse microbiota that may contribute to clam protection and overall fitness, as well as to its adaptation to stressful environments. In addition, the Manila clam microbiota is revealed as a promising source of novel probiotics with potential application in aquaculture.
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Affiliation(s)
- Laura Leite
- Departamento de Biologia, CESAM, Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal
- Université de Bordeaux, UMR 5805 EPOC, 33120, Arcachon, France
- CNRS, UMR 5805 EPOC, 33120, Arcachon, France
| | - Florence Jude-Lemeilleur
- Université de Bordeaux, UMR 5805 EPOC, 33120, Arcachon, France
- CNRS, UMR 5805 EPOC, 33120, Arcachon, France
| | - Natalie Raymond
- Université de Bordeaux, UMR 5805 EPOC, 33120, Arcachon, France
- CNRS, UMR 5805 EPOC, 33120, Arcachon, France
| | - Isabel Henriques
- Departamento de Biologia, CESAM, Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Frédéric Garabetian
- Université de Bordeaux, UMR 5805 EPOC, 33120, Arcachon, France
- CNRS, UMR 5805 EPOC, 33120, Arcachon, France
| | - Artur Alves
- Departamento de Biologia, CESAM, Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
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Alves AC, Monteiro MS, Machado AL, Oliveira M, Bóia A, Correia A, Oliveira N, Soares AMVM, Loureiro S. Mercury levels in parturient and newborns from Aveiro region, Portugal. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2017; 80:697-709. [PMID: 28524771 DOI: 10.1080/15287394.2017.1286926] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Since the outbreak of methylmercury (MeHg) poisoning in Japan and Iraq, mercury (Hg) is classified as well-established teratogen. The Portuguese region of Aveiro faced some decades ago an environmental Hg contamination due to activities from a chlor-alkali plant. Until now, no apparent evaluation was conducted regarding prenatal exposure to Hg in this area. The main objectives of this study were to: i) assess maternal and fetal exposure to Hg in the Aveiro region using noninvasive biological matrices; ii) examine the influence of variables that may contribute to Hg exposure during pregnancy; and iii) improve knowledge regarding metal accumulation and distribution over the maternal-fetal-placental unit. This study was performed in 50 mother-newborn pairs from the Aveiro district. Total Hg (THg) was quantified in maternal scalp hair, placenta, amniotic membrane, and umbilical cord. Maternal hair presented THg levels with a mean value of 900 ng/g, which is lower than the USEPA and WHO acceptable threshold. Regarding THg levels in placenta and umbilical cord, mean values were similar (decidua basalis: 32.84 ng/g; chorionic plate: 30.18 ng/g; umbilical cord: 30.67 ng/g). The amniotic membrane presented the highest THg levels with a mean concentration of 42.35 ng/g, reaching a maximum of 134.1 ng/g. Further, a significant positive correlation was noted between THg levels found in hair, and all matrices analyzed reinforcing the use of hair in biomonitoring studies with respect to maternal exposure to Hg. In general, levels of THg found in our study were lower than those in previous studies performed in Europe. Consumption of fish rich in selenium and bottled water was negatively correlated with THg levels. Finally, data demonstrated that Hg is capable of crossing the placental barrier and accumulate in placental tissues. Amniotic membrane seemed to play a role in metal detoxification, but further investigations are necessary to examine whether this catabolic process affects Hg accumulation.
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Affiliation(s)
- Ana Catarina Alves
- a Department of Biology & Centro de Estudos do Ambiente e do MAR (CESAM) , University of Aveiro , Aveiro , Portugal
| | - Marta S Monteiro
- a Department of Biology & Centro de Estudos do Ambiente e do MAR (CESAM) , University of Aveiro , Aveiro , Portugal
| | - Ana Luísa Machado
- a Department of Biology & Centro de Estudos do Ambiente e do MAR (CESAM) , University of Aveiro , Aveiro , Portugal
| | - Mário Oliveira
- b Obstetrics and Gynecology Department, Infante D.Pedro Hospital , Centro Hospitalar Baixo , Vouga , EPE, Aveiro , Portugal
| | - Ana Bóia
- b Obstetrics and Gynecology Department, Infante D.Pedro Hospital , Centro Hospitalar Baixo , Vouga , EPE, Aveiro , Portugal
| | - Ana Correia
- b Obstetrics and Gynecology Department, Infante D.Pedro Hospital , Centro Hospitalar Baixo , Vouga , EPE, Aveiro , Portugal
| | - Nuno Oliveira
- b Obstetrics and Gynecology Department, Infante D.Pedro Hospital , Centro Hospitalar Baixo , Vouga , EPE, Aveiro , Portugal
| | - Amadeu M V M Soares
- a Department of Biology & Centro de Estudos do Ambiente e do MAR (CESAM) , University of Aveiro , Aveiro , Portugal
| | - Susana Loureiro
- a Department of Biology & Centro de Estudos do Ambiente e do MAR (CESAM) , University of Aveiro , Aveiro , Portugal
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Almeida Â, Calisto V, Esteves VI, Schneider RJ, Soares AMVM, Figueira E, Freitas R. Toxicity associated to uptake and depuration of carbamazepine in the clam Scrobicularia plana under a chronic exposure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 580:1129-1145. [PMID: 28040214 DOI: 10.1016/j.scitotenv.2016.12.069] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 12/11/2016] [Accepted: 12/12/2016] [Indexed: 06/06/2023]
Abstract
Carbamazepine (CBZ) is an antiepileptic drug commonly detected in aquatic systems, with toxic effects to inhabiting organisms. Limited information is known on stress response biomarkers associated to bioconcentration and depuration of CBZ in aquatic organisms. Moreover, few studies addressed if the response and recovery of organisms to a contaminant can change when they are collected in a contaminated site. This study intended to understand the bioconcentration and depuration of CBZ combined with its toxicological impact in Scrobicularia plana clams collected from two contrasting areas (MIRA, Mira channel, non-contaminated and LAR, Laranjo bay, anthropogenically impacted) from the Ria de Aveiro (Portugal). The clams were exposed for 14days to environmentally relevant CBZ concentrations (0.0, 4.0 and 8.0μg/L), followed by a 14day depuration period. CBZ concentrations in S. plana tissues were rapidly bioconcentrated during the exposure period. In the depuration period CBZ was eliminated, in some extent. The main toxic effects occurred at the highest concentration (8.0μg/L) after 14days of exposure in which the clams from LAR accumulated a higher CBZ concentration (LAR: ~10ng/g FW) than clams from MIRA (MIRA: ~7ng/g FW). LAR clams exhibited higher oxidative damage at this concentration, demonstrated by higher LPO levels over time (increase of ~1.4% relative to control) and, in comparison with MIRA clams (LAR: 17.7nmol/g FW; MIRA: 11.4nmol/g FW). After the depuration period, LAR clams recovered from the stress induced by CBZ. A decrease in LPO for LAR (decrease of ~40% in relation to the end of the exposure period) was accompanied by a decrease in CBZ tissue concentrations (decrease of ~61% relative to the end of the exposure period). MIRA clams were not oxidatively injured (low LPO levels remained unchanged after the depuration and CBZ decreased ~80% relative to the end of the exposure period).
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Affiliation(s)
- Ângela Almeida
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Vânia Calisto
- Chemistry Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Valdemar I Esteves
- Chemistry Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rudolf J Schneider
- BAM Federal Institute for Materials Research and Testing, Richard-Willstaetter-Str. 11, D-12489 Berlin, Germany
| | | | - Etelvina Figueira
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Biology Department & CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
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Giangrande A, Licciano M, Del Pasqua M, Fanizzi FP, Migoni D, Stabili L. Heavy metals in five Sabellidae species (Annelida, Polychaeta): ecological implications. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:3759-3768. [PMID: 27889887 DOI: 10.1007/s11356-016-8089-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 11/09/2016] [Indexed: 06/06/2023]
Abstract
The present work analyzed three hard-bottom and two soft-bottom species of sabellid polychaetes to determine the content of several heavy metals in their branchial crown and body. The highest concentrations of heavy metals were recorded in the hard-bottom species Branchiomma bairdi, a recent Mediterranean introduction. Differences in the metal concentrations were most notable in the high trace metal levels of the branchial crown for all the studied species. Statistical analysis showed that the Mediterranean hard-bottom species were similar each other in their heavy metal content in the body as well as in the branchial crown and appeared separated from all the other species. Arsenic and vanadium hyperaccumulation in the branchial crowns of the considered sabellid species probably acts as a deterrent for predation. The observed differences among the examined species were discussed not only at the light of habitat colonization but also in terms of the phylogeny.
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Affiliation(s)
- Adriana Giangrande
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (Di. S. Te. B.A.), Università del Salento, CoNISMa unit of Lecce, Via Prov. Lecce-Monteroni, 73100, Lecce, Italy
| | - Margherita Licciano
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (Di. S. Te. B.A.), Università del Salento, CoNISMa unit of Lecce, Via Prov. Lecce-Monteroni, 73100, Lecce, Italy
| | - Michela Del Pasqua
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (Di. S. Te. B.A.), Università del Salento, CoNISMa unit of Lecce, Via Prov. Lecce-Monteroni, 73100, Lecce, Italy
| | - Francesco Paolo Fanizzi
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (Di. S. Te. B.A.), Università del Salento, CoNISMa unit of Lecce, Via Prov. Lecce-Monteroni, 73100, Lecce, Italy
| | - Danilo Migoni
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (Di. S. Te. B.A.), Università del Salento, CoNISMa unit of Lecce, Via Prov. Lecce-Monteroni, 73100, Lecce, Italy
| | - Loredana Stabili
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali (Di. S. Te. B.A.), Università del Salento, CoNISMa unit of Lecce, Via Prov. Lecce-Monteroni, 73100, Lecce, Italy.
- Istituto per l'Ambiente Marino Costiero-Sezione di Taranto-CNR, Via Roma 3, 74100, Taranto, Italy.
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Stoichev T, Tessier E, Amouroux D, Almeida CM, Basto MCP, Vasconcelos VM. Multiple regression analysis to assess the role of plankton on the distribution and speciation of mercury in water of a contaminated lagoon. JOURNAL OF HAZARDOUS MATERIALS 2016; 318:711-722. [PMID: 27484944 DOI: 10.1016/j.jhazmat.2016.07.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 06/30/2016] [Accepted: 07/25/2016] [Indexed: 06/06/2023]
Abstract
Spatial and seasonal variation of mercury species aqueous concentrations and distributions was carried out during six sampling campaigns at four locations within Laranjo Bay, the most mercury-contaminated area of the Aveiro Lagoon (Portugal). Inorganic mercury (IHg(II)) and methylmercury (MeHg) were determined in filter-retained (IHgPART, MeHgPART) and filtered (<0.45μm) fractions (IHg(II)DISS, MeHgDISS). The concentrations of IHgPART depended on site and on dilution with downstream particles. Similar processes were evidenced for MeHgPART, however, its concentrations increased for particles rich in phaeophytin (Pha). The concentrations of MeHgDISS, and especially those of IHg(II)DISS, increased with Pha concentrations in the water. Multiple regression models are able to depict MeHgPART, IHg(II)DISS and MeHgDISS concentrations with salinity and Pha concentrations exhibiting additive statistical effects and allowing separation of possible addition and removal processes. A link between phytoplankton/algae and consumers' grazing pressure in the contaminated area can be involved to increase concentrations of IHg(II)DISS and MeHgPART. These processes could lead to suspended particles enriched with MeHg and to the enhancement of IHg(II) and MeHg availability in surface waters and higher transfer to the food web.
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Affiliation(s)
- T Stoichev
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal.
| | - E Tessier
- Laboratoire de Chimie Analytique Bio-inorganique et Environnement, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, IPREM UMR 5254 CNRS - Université de Pau et des Pays de l'Adour, Hélioparc Pau Pyrénées, 2, av. P. Angot, 64053 Pau cedex 9, France
| | - D Amouroux
- Laboratoire de Chimie Analytique Bio-inorganique et Environnement, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, IPREM UMR 5254 CNRS - Université de Pau et des Pays de l'Adour, Hélioparc Pau Pyrénées, 2, av. P. Angot, 64053 Pau cedex 9, France
| | - C M Almeida
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - M C P Basto
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal; Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - V M Vasconcelos
- Interdisciplinary Center of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal; Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
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Coppola F, Pires A, Velez C, Soares AMVM, Pereira E, Figueira E, Freitas R. Biochemical and physiological alterations induced in Diopatra neapolitana after a long-term exposure to Arsenic. Comp Biochem Physiol C Toxicol Pharmacol 2016; 189:1-9. [PMID: 27349727 DOI: 10.1016/j.cbpc.2016.06.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 05/26/2016] [Accepted: 06/07/2016] [Indexed: 11/26/2022]
Abstract
Several authors identified polychaetes as a group of marine invertebrates that respond rapidly to anthropogenic stressors. Furthermore, several studies have demonstrated that environmental pollution lead to the impoverishment of benthic communities with species replacement and biodiversity loss, but very few studies have investigated biochemical and physiological alterations that species undergo in response to Arsenic (As) exposure. Therefore, the present study assessed the toxicity induced in the polychaete Diopatra neapolitana after a long-term (28days) exposure to different As concentrations (0.0, 0.05, 0.25 and 1.25mg/L). For this biochemical and physiological alterations were evaluated. Biochemical analysis included the measurement of different biomarkers such as glutathione S-transferase (GST), lipid peroxidation (LPO), superoxide dismutase (SOD), catalase (CAT), reduced glutathione (GSH) and oxidized glutathione (GSSG) were assessed in order to evaluate oxidative stress. Physiological analyzes included the observation of polychaetes regenerative capacity and the quantification of organisms total protein (PROT) and glycogen (GLY) content. The results obtained allowed to confirm the suitability of these biomarkers to identify the toxicity caused by As and moreover revealed that D. neapolitana is a good bioindicator of As pollution.
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Affiliation(s)
- Francesca Coppola
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Adília Pires
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Cátia Velez
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | | | - Eduarda Pereira
- Department of Chemistry & CESAM, University of Aveiro, Aveiro, Portugal
| | - Etelvina Figueira
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Rosa Freitas
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal.
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Puga S, Pereira P, Pinto-Ribeiro F, O'Driscoll NJ, Mann E, Barata M, Pousão-Ferreira P, Canário J, Almeida A, Pacheco M. Unveiling the neurotoxicity of methylmercury in fish (Diplodus sargus) through a regional morphometric analysis of brain and swimming behavior assessment. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 180:320-333. [PMID: 27780124 DOI: 10.1016/j.aquatox.2016.10.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 10/11/2016] [Accepted: 10/14/2016] [Indexed: 06/06/2023]
Abstract
The current study aims to shed light on the neurotoxicity of MeHg in fish (white seabream - Diplodus sargus) by the combined assessment of: (i) MeHg toxicokinetics in the brain, (ii) brain morphometry (volume and number of neurons plus glial cells in specific brain regions) and (iii) fish swimming behavior (endpoints associated with the motor performance and the fear/anxiety-like status). Fish were surveyed for all the components after 7 (E7) and 14 (E14) days of dietary exposure to MeHg (8.7μgg-1), as well as after a post-exposure period of 28days (PE28). MeHg was accumulated in the brain of D. sargus after a short time (E7) and reached a maximum at the end of the exposure period (E14), suggesting an efficient transport of this toxicant into fish brain. Divalent inorganic Hg was also detected in fish brain along the experiment (indicating demethylation reactions), although levels were 100-200 times lower than MeHg, which pinpoints the organic counterpart as the great liable for the recorded effects. In this regard, a decreased number of cells in medial pallium and optic tectum, as well as an increased hypothalamic volume, occurred at E7. Such morphometric alterations were followed by an impairment of fish motor condition as evidenced by a decrease in the total swimming time, while the fear/anxiety-like status was not altered. Moreover, at E14 fish swam a greater distance, although no morphometric alterations were found in any of the brain areas, probably due to compensatory mechanisms. Additionally, although MeHg decreased almost two-fold in the brain during post-exposure, the levels were still high and led to a loss of cells in the optic tectum at PE28. This is an interesting result that highlights the optic tectum as particularly vulnerable to MeHg exposure in fish. Despite the morphometric alterations reported in the optic tectum at PE28, no significant changes were found in fish behavior. Globally, the effects of MeHg followed a multiphasic profile, where homeostatic mechanisms prevented circumstantially morphometric alterations in the brain and behavioral shifts. Although it has become clear the complexity of matching brain morphometric changes and behavioral shifts, motor-related alterations induced by MeHg seem to depend on a combination of disruptions in different brain regions.
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Affiliation(s)
- Sónia Puga
- Life and Health Sciences Research Institute (ICVS), School of Medicine, Campus of Gualtar, University of Minho, 4750-057 Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Patrícia Pereira
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Filipa Pinto-Ribeiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, Campus of Gualtar, University of Minho, 4750-057 Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Nelson J O'Driscoll
- Department of Earth and Environmental Science, Center for Analytical Research on the Environment, K.C. Irving Center, Acadia University, Wolfville, Nova Scotia, Canada
| | - Erin Mann
- Department of Earth and Environmental Science, Center for Analytical Research on the Environment, K.C. Irving Center, Acadia University, Wolfville, Nova Scotia, Canada
| | - Marisa Barata
- IPMA - Aquaculture Research Station, 8700-005 Olhão, Portugal
| | | | - João Canário
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - Armando Almeida
- Life and Health Sciences Research Institute (ICVS), School of Medicine, Campus of Gualtar, University of Minho, 4750-057 Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Mário Pacheco
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
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García-Seoane E, Coelho JP, Mieiro C, Dolbeth M, Ereira T, Rebelo JE, Pereira E. Effect of historical contamination in the fish community structure of a recovering temperate coastal lagoon. MARINE POLLUTION BULLETIN 2016; 111:221-230. [PMID: 27423444 DOI: 10.1016/j.marpolbul.2016.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 06/29/2016] [Accepted: 07/03/2016] [Indexed: 06/06/2023]
Abstract
This study aimed to assess the impact of trace element concentrations in fish assemblages of a recovering coastal lagoon. Fish, water and sediment were sampled in winter and summer in the Ria de Aveiro (Portugal). Multivariate analyses were used to examine the relationship between fish assemblages and environmental variables (physical-chemical parameters, contaminants and sediment grain size). In winter, fish density and biomass were mainly affected by the water turbidity, while Li concentration in the water column was found to be significant for fish biomass. During summer, a significant relationship was found between fish density and temperature, Hg, Li and Zn concentration in the sediment. These contaminants were mainly associated with the historically contaminated area, were Liza spp. and Dicentrarchus labrax appeared as dominant species. Environmental variables were not significant for fish biomass. The historical contamination in the Ria de Aveiro still seems to exert some influence on fish community structure.
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Affiliation(s)
- Eva García-Seoane
- Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - João Pedro Coelho
- CESAM & Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua das Bragas, 289, 4050-123 Porto, Portugal
| | - Cláudia Mieiro
- CESAM & Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Apartado 3046, 3001-401 Coimbra, Portugal
| | - Marina Dolbeth
- Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Apartado 3046, 3001-401 Coimbra, Portugal
| | - Tiago Ereira
- CESAM & Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - José Eduardo Rebelo
- Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Eduarda Pereira
- CESAM & Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
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35
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Mohmood I, Lopes CB, Lopes I, Tavares DS, Soares AMVM, Duarte AC, Trindade T, Ahmad I, Pereira E. Remediation of mercury contaminated saltwater with functionalized silica coated magnetite nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 557-558:712-721. [PMID: 27039062 DOI: 10.1016/j.scitotenv.2016.03.075] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/10/2016] [Accepted: 03/11/2016] [Indexed: 06/05/2023]
Abstract
The study aimed to evaluate the efficiency of dithiocarbamate functionalized silica coated magnetite nanoparticles (NPs) for Hg decontamination of saltwater either contaminated with Hg alone or with As and Cd. For this, the residual levels of Hg in seawater were assessed and Hg-contaminated or Hg+As+Cd-contaminated seawater toxicity to aquatic biota, before and after the sorption process, was compared. The results showed that under highly competitive conditions (water salts, Cd and As), the removal of Hg from seawater, by using these magnetic NPs, for the lowest concentration (50μg/L) was superior to 98% and for the highest concentration (500μg/L) ranged between 61% to 67%. Despite the great affinity of the magnetic NPs for Hg, they were not effective at removing As and Cd from seawater. In relation to the ecotoxicity endpoints after remediation, the mixture with lower Hg concentration exhibited no toxicity to rotifer Brachionus plicatilis and bacteria Vibrio fischeri ; however, the mixture with higher concentration revealed toxicity. In addition, the toxicity of bacteria V. fischeri, rotifer B. plicatilis and algae Phaeodactylum tricornutum, whose responses where inhibited during its exposure to the non-remediate sample was considerably reduced after treatment with NPs. Furthermore, microalgae P. tricornutum appears to be most sensitive species while Artemia franciscana showed no toxic effects to the tested solutions. Both chemical and ecotoxicological approaches revealed a high efficiency for the remediation of Hg-contaminated saltwater.
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Affiliation(s)
- Iram Mohmood
- CESAM and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Cláudia B Lopes
- CICECO and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - Isabel Lopes
- CESAM and Department of Biology, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Daniela S Tavares
- CESAM and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Amadeu M V M Soares
- CESAM and Department of Biology, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Armando C Duarte
- CESAM and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Tito Trindade
- CICECO and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Iqbal Ahmad
- Centre for Occupational and Environmental Health, Centre for Epidemiology, Institute of Population Health, Faculty of Medical and Human Sciences, The University of Manchester, Manchester M13 9PL, UK
| | - Eduarda Pereira
- CESAM and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal
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Costa L, Mohmood I, Trindade T, Anjum NA, Duarte AC, Pereira E. Phagocytic cell responses to silica-coated dithiocarbamate-functionalized iron oxide nanoparticles and mercury co-exposures in Anguilla anguilla L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:12272-12286. [PMID: 26976012 DOI: 10.1007/s11356-016-6441-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Accepted: 03/07/2016] [Indexed: 06/05/2023]
Abstract
Immune system responses in fish are considered as suitable and sensitive biomarkers for monitoring aquatic pollution. However, a clear knowledge gap persists in the literture on the immunotoxic potential of engineered nanoparticles toward aquatic organisms such as fish. Employing major enzymatic- (glutathione reductase, GR; glutathione peroxidase, GPX; glutathione sulfo-transferase, GST; catalase, CAT) and thiol- (non-protein thiols, NP-SH; total glutathione, TGSH)-based defense biomarkers, this study assessed the response of phagocytes isolated from peritoneum (P-phagocytes), gill (G-phagocytes), head kidney (HK-phagocytes), and spleen (S-phagocytes) of European eel (Anguilla anguilla L.) to silica-coated magnetite particles (Fe3O4@SiO2/SiDTC, hereafter called IONP; size range: 82 ± 21 to 100 ± 30 nm; 2.5 mg L(-1)) alone and IONP and mercury (Hg; 50 μg L(-1)) concomitant exposures. Responses of previous biomarkers were studied in P-phagocytes, G-phagocytes, HK-phagocytes, and S-phagocytes collected during 0, 2, 4, 8, 16, 24, 48, and 72 h of exposures. Contingent to hour of exposure to IONP, Hg, and IONP + Hg GST, GPX, CAT, NP-SH, and TGSH exhibited their differential responses in all the phagocytic cells considered. In particular, under IONP exposure, the potential occurrence of the GSH-independent antioxidant defense was indicated by the observed herein inhibition in the enzymatic- and thiol-based defense in A. anguilla phagocytes. In contrast, the response of P-, G-, HK-, and S-phagocytes to the increasing Hg exposure period reflected an increased detoxification activity. Notably, the occurrence of an antagonism between IONP and Hg was depicted during late hours (72 h) under IONP + Hg concomitant exposure, where elevations in the defense biomarkers were depicted. Overall, the P-, G-, HK-, and S-phagocytic cells exhibited a differential induction in the studied enzymes and thiols to counteract impacts of IONP, Hg, and IONP + Hg concomitant exposures. Future studies on the fish immunotoxicity responses to IONP exposure in multi-pollution conditions can be benefited with the major outcomes of the present study.
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Affiliation(s)
- Leonor Costa
- Department of Chemistry & CESAM, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Iram Mohmood
- Department of Chemistry & CESAM, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Tito Trindade
- Department of Chemistry & CICECO, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Naser A Anjum
- Department of Chemistry & CESAM, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Armando C Duarte
- Department of Chemistry & CESAM, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Eduarda Pereira
- Department of Chemistry & CESAM, University of Aveiro, 3810-193, Aveiro, Portugal
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Fidalgo C, Henriques I, Rocha J, Tacão M, Alves A. Culturable endophytic bacteria from the salt marsh plant Halimione portulacoides: phylogenetic diversity, functional characterization, and influence of metal(loid) contamination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:10200-14. [PMID: 26875822 DOI: 10.1007/s11356-016-6208-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 01/29/2016] [Indexed: 05/27/2023]
Abstract
Halimione portulacoides is abundant in salt marshes, accumulates mercury (Hg), and was proposed as useful for phytoremediation and pollution biomonitoring. Endophytic bacteria promote plant growth and provide compounds with industrial applications. Nevertheless, information about endophytic bacteria from H. portulacoides is scarce. Endophytic isolates (n = 665) were obtained from aboveground and belowground plant tissues, from two Hg-contaminated sites (sites E and B) and a noncontaminated site (site C), in the estuary Ria de Aveiro. Representative isolates (n = 467) were identified by 16S rRNA gene sequencing and subjected to functional assays. Isolates affiliated with Proteobacteria (64 %), Actinobacteria (23 %), Firmicutes (10 %), and Bacteroidetes (3 %). Altererythrobacter (7.4 %), Marinilactibacillus (6.4 %), Microbacterium (10.2 %), Salinicola (8.8 %), and Vibrio (7.8 %) were the most abundant genera. Notably, Salinicola (n = 58) were only isolated from site C; Hoeflea (17), Labrenzia (22), and Microbacterium (67) only from belowground tissues. This is the first report of Marinilactibacillus in the endosphere. Principal coordinate analysis showed that community composition changes with the contamination gradient and tissue. Our results suggest that the endosphere of H. portulacoides represents a diverse bacterial hotspot including putative novel species. Many isolates, particularly those affiliated to Altererythrobacter, Marinilactibacillus, Microbacterium, and Vibrio, tested positive for enzymatic activities and plant growth promoters, exposing H. portulacoides as a source of bacteria and compounds with biotechnological applications.
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Affiliation(s)
- Cátia Fidalgo
- CESAM, Departamento de Biologia, Universidade de Aveiro, Aveiro, Portugal
- iBiMED and CESAM, Departamento de Biologia, Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Isabel Henriques
- iBiMED and CESAM, Departamento de Biologia, Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
| | - Jaqueline Rocha
- CESAM, Departamento de Biologia, Universidade de Aveiro, Aveiro, Portugal
| | - Marta Tacão
- CESAM, Departamento de Biologia, Universidade de Aveiro, Aveiro, Portugal
| | - Artur Alves
- CESAM, Departamento de Biologia, Universidade de Aveiro, Aveiro, Portugal
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Rocha MJ, Cruzeiro C, Reis M, Pardal MÂ, Rocha E. Pollution by endocrine disruptors in a southwest European temperate coastal lagoon (Ria de Aveiro, Portugal). ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:101. [PMID: 26787270 DOI: 10.1007/s10661-016-5114-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 01/12/2016] [Indexed: 06/05/2023]
Abstract
Ria de Aveiro is a Portuguese lagoon renowned for its ecological and economic importance. Nonetheless, in literature, few data exist about its organic pollution. Accordingly, this study chemically monitored for the first time a series of 17 endocrine disruptor compounds (EDCs). The target EDCs include natural (17β-oestradiol, oestrone) and pharmaceutical (17α-ethynylestradiol) oestrogens, industrial/household xenoestrogenic pollutants (octylphenols, nonylphenols and their mono and diethoxylates and bisphenol A), phytoestrogens (formononetin, biochanin A, daidzein, genistein) and the phytosterol sitosterol (SITO). For the investigation of these EDCs, water samples were taken from eight sampling sites widely spread along the lagoon, at three different occasions in 2011, and analysed by gas chromatography-mass spectrometry. Results not only proved the ubiquitous distribution of all analysed EDCs but revealed that their amounts were extremely high at all sampling sites. The annual average concentrations were ≈ 46 ng/L for oestrogens, ≈ 3962 ng/L for industrial/household chemicals, ≈ 1740 ng/L for phytoestrogens and ≈ 908 ng/L for SITO. Normalising these values in ethynylestradiol equivalents (EE2eq), the oestrogenic load in this lagoon attained ≈ 50 ng/L EE2eq, which is a value well above that known to produce oestrogenic-induced disorders in aquatic fauna. Additionally, phosphate concentrations were also above the legal limits (>1 mg/L). Overall, data show EDCs at toxic relevant levels in the Ria de Aveiro and stress the need to enforce depollution measures in this habitat.
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Affiliation(s)
- Maria João Rocha
- Histomorphology, Physiopathology and Applied Toxicology Group, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto (UPorto), Porto, Portugal.
- Laboratory of Histology and Embryology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar (ICBAS), UPorto, Porto, Portugal.
| | - Catarina Cruzeiro
- Histomorphology, Physiopathology and Applied Toxicology Group, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto (UPorto), Porto, Portugal
- Laboratory of Histology and Embryology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar (ICBAS), UPorto, Porto, Portugal
| | - Mário Reis
- CFE-Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Apartado 3046, 3001-401, Coimbra, Portugal
| | - Miguel Ângelo Pardal
- CFE-Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Apartado 3046, 3001-401, Coimbra, Portugal
| | - Eduardo Rocha
- Histomorphology, Physiopathology and Applied Toxicology Group, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto (UPorto), Porto, Portugal
- Laboratory of Histology and Embryology, Department of Microscopy, Institute of Biomedical Sciences Abel Salazar (ICBAS), UPorto, Porto, Portugal
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Pereira P, Puga S, Cardoso V, Pinto-Ribeiro F, Raimundo J, Barata M, Pousão-Ferreira P, Pacheco M, Almeida A. Inorganic mercury accumulation in brain following waterborne exposure elicits a deficit on the number of brain cells and impairs swimming behavior in fish (white seabream-Diplodus sargus). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2016; 170:400-412. [PMID: 26688460 DOI: 10.1016/j.aquatox.2015.11.031] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 11/30/2015] [Accepted: 11/30/2015] [Indexed: 06/05/2023]
Abstract
The current study contributes to fill the knowledge gap on the neurotoxicity of inorganic mercury (iHg) in fish through the implementation of a combined evaluation of brain morphometric alterations (volume and total number of neurons plus glial cells in specific regions of the brain) and swimming behavior (endpoints related with the motor activity and mood/anxiety-like status). White seabream (Diplodus sargus) was exposed to realistic levels of iHg in water (2μgL(-1)) during 7 (E7) and 14 days (E14). After that, fish were allowed to recover for 28 days (PE28) in order to evaluate brain regeneration and reversibility of behavioral syndromes. A significant reduction in the number of cells in hypothalamus, optic tectum and cerebellum was found at E7, accompanied by relevant changes on swimming behavior. Moreover, the decrease in the number of neurons and glia in the molecular layer of the cerebellum was followed by a contraction of its volume. This is the first time that a deficit on the number of cells is reported in fish brain after iHg exposure. Interestingly, a recovery of hypothalamus and cerebellum occurred at E14, as evidenced by the identical number of cells found in exposed and control fish, and volume of cerebellum, which might be associated with an adaptive phenomenon. After 28 days post-exposure, the optic tectum continued to show a decrease in the number of cells, pointing out a higher vulnerability of this region. These morphometric alterations coincided with numerous changes on swimming behavior, related both with fish motor function and mood/anxiety-like status. Overall, current data pointed out the iHg potential to induce brain morphometric alterations, emphasizing a long-lasting neurobehavioral hazard.
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Affiliation(s)
- Patrícia Pereira
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Sónia Puga
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences (ECS), Campus of Gualtar, University of Minho, 4750-057 Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Vera Cardoso
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences (ECS), Campus of Gualtar, University of Minho, 4750-057 Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Filipa Pinto-Ribeiro
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences (ECS), Campus of Gualtar, University of Minho, 4750-057 Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joana Raimundo
- IPMA-Portuguese Institute for the Sea and Atmosphere, Av. Brasília, 1449-006 Lisbon, Portugal
| | - Marisa Barata
- IPMA-Aquaculture Research Station, 8700-005 Olhão, Portugal
| | | | - Mário Pacheco
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Armando Almeida
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences (ECS), Campus of Gualtar, University of Minho, 4750-057 Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Calado MDL, Carvalho L, Pang KL, Barata M. Diversity and Ecological Characterization of Sporulating Higher Filamentous Marine Fungi Associated with Spartina maritima (Curtis) Fernald in Two Portuguese Salt Marshes. MICROBIAL ECOLOGY 2015; 70:612-633. [PMID: 25851444 DOI: 10.1007/s00248-015-0600-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 03/18/2015] [Indexed: 06/04/2023]
Abstract
Fungal communities associated with early stages of decomposition of Spartina maritima (Curtis) Fernald were assessed in two geographically distinct salt marshes in Portugal by direct observation of fungal sporulating structures. Twenty-three fungal taxa were identified from 390 plant samples, 11 of which were common to both study sites. Natantispora retorquens, Byssothecium obiones, Phaeosphaeria spartinicola, Phoma sp. 1 and Stagonospora sp. were the most frequent fungal taxa in the studied communities. The fungal species Anthostomella spissitecta, Camarosporium roumeguerii, Coniothyrium obiones, Decorospora gaudefroyi, Halosarpheia trullifera, Leptosphaeria marina and Stagonospora haliclysta were recorded for the first time on S. maritima plants; with the exception of C. roumeguerii and L. marina, all of these species were also new records for Portugal. The differences between species composition of the communities associated with S. maritima were attributed to differences in abiotic conditions of the salt marshes. Although the fungal taxa were distributed differently along the host plants, common species to both fungal communities were found on the same relative position, e.g. B. obiones, Lulworthia sp. and N. retorquens occurred on the basal plant portions, Buergenerula spartinae, Dictyosporium pelagicum and Phoma sp. 1 on the middle plant portions and P. spartinicola and Stagonospora sp. on the top plant portions. The distinct vertical distribution patterns reflected species-specific salinity requirements and flooding tolerance, but specially substrate preferences. The most frequent fungi in both communities also exhibited wider distribution ranges and produced a higher number of fruiting structures, suggesting a more active key role in the decay process of S. maritima.
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Affiliation(s)
- Maria da Luz Calado
- Centre for Ecology, Evolution and Environmental Changes (Ce3C), Faculty of Sciences of University of Lisbon, Edifício C2, 5° Piso, Campo Grande, 1749-016, Lisbon, Portugal.
- Department of Plant Biology, Faculty of Sciences of the University of Lisbon, Edifício C2, 2° Piso, Campo Grande, 1749-016, Lisbon, Portugal.
| | - Luís Carvalho
- Centre for Ecology, Evolution and Environmental Changes (Ce3C), Faculty of Sciences of University of Lisbon, Edifício C2, 5° Piso, Campo Grande, 1749-016, Lisbon, Portugal
- Department of Plant Biology, Faculty of Sciences of the University of Lisbon, Edifício C2, 2° Piso, Campo Grande, 1749-016, Lisbon, Portugal
| | - Ka-Lai Pang
- Institute of Marine Biology and Centre of Excellence for the Oceans, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 20224, Taiwan, Republic of China
| | - Margarida Barata
- Centre for Ecology, Evolution and Environmental Changes (Ce3C), Faculty of Sciences of University of Lisbon, Edifício C2, 5° Piso, Campo Grande, 1749-016, Lisbon, Portugal
- Department of Plant Biology, Faculty of Sciences of the University of Lisbon, Edifício C2, 2° Piso, Campo Grande, 1749-016, Lisbon, Portugal
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Alves Martins MV, Zaaboub N, Aleya L, Frontalini F, Pereira E, Miranda P, Mane M, Rocha F, Laut L, El Bour M. Environmental Quality Assessment of Bizerte Lagoon (Tunisia) Using Living Foraminifera Assemblages and a Multiproxy Approach. PLoS One 2015; 10:e0137250. [PMID: 26372655 PMCID: PMC4570719 DOI: 10.1371/journal.pone.0137250] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 08/13/2015] [Indexed: 11/19/2022] Open
Abstract
This study investigated the environmental quality of the Bizerte Lagoon (Tunisia) through an integrated approach that combined environmental, biogeochemical, and living benthic foraminiferal analyses. Specifically, we analyzed the physicochemical parameters of the water and sediment. The textural, mineralogical, and geochemical characteristics of the sediment, including total organic carbon, total nitrogen, simultaneously extracted metals (SEM), acid volatile sulfides (AVS), chlorophyll a, CaCO3, and changes in bacterial populations and carbon isotopes were measured. The SEM/AVS values indicated the presence of relatively high concentrations of toxic metals in only some areas. Foraminiferal assemblages were dominated by species such as A. parkinsoniana (20–91%), Bolivina striatula (<40%), Hopkinsina atlantica (<17%), and Bolivina ordinaria (<15%) that cannot be considered typical of impacted coastal lagoons both in Mediterranean and northeast Atlantic regions. The results of this work suggest that Bizerte Lagoon is a unique setting. This lagoon is populated by typical marine species that invaded this ecosystem, attracted not only by the prevailing favorable environmental conditions but also by the abundance and quality of food. The results indicate that the metal pollution found in some areas have a negative impact on the assemblages of foraminifera. At present, however, this negative impact is not highly alarming.
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Affiliation(s)
- Maria Virgínia Alves Martins
- Universidade do Estado do Rio de Janeiro—UERJ, Faculdade de Geologia, Av. São Francisco Xavier, 524, Maracanã. 20550–013 Rio de Janeiro, RJ, Brasil
- Universidade do Estado do Amazonas–UEA, Av. Djalma Batista, 3578, Flores, CEP 69050–010, Manaus, Brasil
- Universidade de Aveiro, Dpto. Geociências, Campus de Santiago, 3810–193, Aveiro, Portugal
- * E-mail:
| | - Noureddine Zaaboub
- Institut National des Sciences et Technologies de la Mer, 1934–2025 Salammbô, Tunisia
| | - Lotfi Aleya
- Université de Bourgogne Franche-Comté, Laboratoire de Chrono-Environnement, UMR CNRS 6249, Place Leclerc, F-25030 Besançon Cedex, France
| | - Fabrizio Frontalini
- Università degli Studi di Urbino "Carlo Bo", Dipartimento di Scienze della Terra, della Vita e dell'Ambiente, Campus Scientifico Enrico Mattei, Località Crocicchia, 61029 Urbino, Italy
| | - Egberto Pereira
- Universidade do Estado do Rio de Janeiro—UERJ, Faculdade de Geologia, Av. São Francisco Xavier, 524, Maracanã. 20550–013 Rio de Janeiro, RJ, Brasil
| | - Paulo Miranda
- Universidade de Aveiro, Dpto. Geociências, Campus de Santiago, 3810–193, Aveiro, Portugal
| | - Miguel Mane
- Universidade do Estado do Rio de Janeiro—UERJ, Faculdade de Geologia, Av. São Francisco Xavier, 524, Maracanã. 20550–013 Rio de Janeiro, RJ, Brasil
| | - Fernando Rocha
- Universidade de Aveiro, Dpto. Geociências, Campus de Santiago, 3810–193, Aveiro, Portugal
| | - Lazaro Laut
- Laboratório de Micropaleontologia–LabMicro, Universidade Federal do Estado do Rio de Janeiro–UNIRIO, Av. Pasteur, 296—Urca—Cep 22290–240, Rio de Janeiro, Brazil
| | - Monia El Bour
- Institut National des Sciences et Technologies de la Mer, 1934–2025 Salammbô, Tunisia
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Matos MRA, Gomes MTSR, Oliveira JABP, Alves E, Cunha MASDA, Almeida A, Rudnitskaya A. Assessment of Transition Metals Toxicity in Environmental Matrices Using Potentiometric Electrodes: Inorganic Mercury(II) in the Seawater as a Case Study. ELECTROANAL 2015. [DOI: 10.1002/elan.201400713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Velez C, Galvão P, Longo R, Malm O, Soares AMVM, Figueira E, Freitas R. Ruditapes philippinarum and Ruditapes decussatus under Hg environmental contamination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:11890-11904. [PMID: 25869429 DOI: 10.1007/s11356-015-4397-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 03/17/2015] [Indexed: 06/04/2023]
Abstract
The native species Ruditapes decussatus and the invasive species Ruditapes philippinarum have an important ecological role and socio-economic value, from the Atlantic and Mediterranean to the Indo-Pacific region. In the aquatic environment, they are subjected to the presence of different contaminants, such as mercury (Hg) and its methylated form, methylmercury (MeHg). However, few studies have assessed the impacts of Hg on bivalves under environmental conditions, and little is known on bivalve oxidative stress patterns due to Hg contamination. Therefore, this study aims to assess the Hg contamination in sediments as well as the concentration of Hg and MeHg in R. decussatus and R. philippinarum, and to identify the detoxification strategies of both species living in sympatry, in an aquatic system with historical Hg contamination. The risk to human health due to the consumption of clams was also evaluated. The results obtained demonstrated that total Hg concentration found in sediments from the most contaminated area was higher than the maximum levels established by Sediment Quality Guidelines. This study further revealed that the total Hg and MeHg accumulation in both species was strongly correlated with the total Hg contamination of the sediments. Nonetheless, the THg concentration in both species was lower than maximum permissible limits (MPLs) of THg defined by international organizations. R. decussatus and R. philippinarum showed an increase in lipid peroxidation levels along with the increase of THg accumulation by clams. Nevertheless, for both species, no clear trend was obtained regarding the activity of antioxidant (superoxide dismutase, catalase) and biotransformation (glutathione S-transferase) enzymes and metallothioneins with the increase of THg in clams. Overall, the present work demonstrated that both species can be used as sentinel species of contamination and that the consumption of these clams does not constitute a risk for human health.
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Affiliation(s)
- Cátia Velez
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
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44
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Freitas R, Almeida Â, Calisto V, Velez C, Moreira A, Schneider RJ, Esteves VI, Wrona FJ, Soares AMVM, Figueira E. How life history influences the responses of the clam Scrobicularia plana to the combined impacts of carbamazepine and pH decrease. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2015; 202:205-214. [PMID: 25847886 DOI: 10.1016/j.envpol.2015.03.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Revised: 02/13/2015] [Accepted: 03/10/2015] [Indexed: 06/04/2023]
Abstract
In the present study, the bivalve Scrobicularia plana, collected from two contrasting areas (pristine location and mercury contaminated area), was selected to assess the biochemical alterations imposed by pH decrease, carbamazepine (an antiepileptic) and the combined effect of both stressors. The effects on oxidative stress related biomarkers after 96 h exposure revealed that pH decrease and carbamazepine induced alterations on clams, with greater impacts on individuals from the contaminated area which presented higher mortality, higher lipid peroxidation and higher glutathione S-transferase activity. These results emphasize the risk of extrapolating results from one area to another, since the same species inhabiting different areas may be affected differently when exposed to the same stressors. Furthermore, the results obtained showed that, when combined, the impact of pH decrease and carbamazepine was lower than each stressor acting alone, which could be related to the defence mechanism of valves closure when bivalves are under higher stressful conditions.
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Affiliation(s)
- Rosa Freitas
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal.
| | - Ângela Almeida
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Vânia Calisto
- Department of Chemistry & CESAM, University of Aveiro, Aveiro, Portugal
| | - Cátia Velez
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Anthony Moreira
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Rudolf J Schneider
- BAM Federal Institute for Materials Research and Testing, Richard-Willstaetter-Str. 11, 12489 Berlin, Germany
| | | | - Frederick J Wrona
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal; Department of Geography, University of Victoria, 3800 Finnerty Road, David Turpin Building, Victoria, BC V8P 5C2, Canada
| | | | - Etelvina Figueira
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
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Srikanth K, Anjum NA, Trindade T, Duarte AC, Pereira E, Ahmad I. Lipid peroxidation and its control in Anguilla anguilla hepatocytes under silica-coated iron oxide nanoparticles (with or without mercury) exposure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:9617-9625. [PMID: 25613805 DOI: 10.1007/s11356-015-4125-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 01/11/2015] [Indexed: 06/04/2023]
Abstract
Having multidisciplinary applications, iron oxide nanoparticles can inevitably enter aquatic system and impact inhabitants such as fish. However, the studies in this context have ignored the significance of obvious interaction of iron oxide nanoparticles with other persistent co-contaminants such as mercury (Hg) in the modulation of the toxicity and underlying mechanisms of iron oxide nanoparticles and Hg alone, and concomitant exposures. This study aimed to evaluate lipid peroxidation (LPO) and its control with glutathione (GSH) and associated enzymes (such as glutathione reductase, GR; glutathione peroxidase, GPX; glutathione sulfo-transferase, GST) in European eel (Anguilla anguilla L.) hepatocytes exposed to stressors with following schemes: (i) no silica-coated iron oxide nanoparticles functionalized with dithiocarbamate (Fe3O4@SiO2/Si DTC, hereafter called 'FeNPs'; size range 82 ± 21 to 100 ± 30 nm) or Hg, (ii) FeNPs (2.5 μg L(-1)) alone, (iii) Hg (50 μg L(-1)) alone and (iv) FeNPs + Hg concomitant condition during 0 to 72 h. The exhibition of a differential coordination between GSH regeneration (determined as GR activity) and GSH metabolism (determined as the activity of GPX and GST) was perceptible in A. anguilla hepatocytes in order to control FeNPs, Hg and FeNPs + Hg exposure condition-mediated LPO. This study revealed the significance of a fine tuning among GR, GPX and GST in keeping LPO level under control during FeNPs or Hg alone exposure, and a direct role of total GSH (TGSH) in the control of LPO level and impaired GSH metabolism under the concomitant (FeNPs + Hg) exposure. An interpretation of the fish risk to FeNPs in a multi-pollution state should equally consider the potential outcome of the interaction of FeNPs with other contaminants.
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Affiliation(s)
- Koigoora Srikanth
- CESAM-Centre for Environmental and Marine Studies & Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal,
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46
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Martins MVA, Mane MÂ, Frontalini F, Santos JF, da Silva FS, Terroso D, Miranda P, Figueira R, Laut LLM, Bernardes C, Filho JGM, Coccioni R, Dias JMA, Rocha F. Early diagenesis and clay mineral adsorption as driving factors of metal pollution in sediments: the case of Aveiro Lagoon (Portugal). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:10019-10033. [PMID: 25666475 DOI: 10.1007/s11356-015-4185-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 01/29/2015] [Indexed: 06/04/2023]
Abstract
This work aims to define the factors driving the accumulation of metals in the sediment of the lagoon of Aveiro (Portugal). The role of initial diagenetic processes in controlling trace metal retention in surface sediment is traced by mineralogy, magnetic susceptibility and geochemical analyses. Although several studies have focused on the metal distribution in this polihaline and anthropized coastal lagoon, most of them have been solely focused on the total metal concentrations. This study instead represents the first attempt to evaluate in a vast area of the Aveiro Lagoon the role of biogeochemical processes in metal availability and distribution in three extracted phases: exchangeable cations adsorbed by clay and elements co-precipitated with carbonates (S1), organic matter (S2) and amorphous Mn hydroxides (S3). According to the sediment guideline values, the sediment is polluted by, for instance, As and Hg in the inner area of the Murtosa Channel, Pb in the Espinheiro Channel, Aveiro City canals and Aveiro Harbour, and Zn in the northern area of the Ovar Channel. These sites are located near the source areas of pollutants and have the highest total available concentrations in each extracted phase. The total available concentrations of all toxic metals are however associated, firstly, with the production of amorphous Mn hydroxides in most of the areas and, secondly, with adsorption by organic compounds. The interplay of the different processes implies that not all of the sites near pollution sources have polluted surface sediment. The accumulation of metals depends on not only the pollution source but also the changing in the redox state of the sediments that may cause alterations in the sediment retention or releasing of redox-sensitive metals. Results of this work suggest that the biogeochemical processes may play a significant role in the increase of the pollutants in the sediment of the Aveiro Lagoon.
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Affiliation(s)
- Maria Virgínia Alves Martins
- Universidade do Estado do Rio de Janeiro, Faculdade de Geologia, Av. São Francisco Xavier, 524, Maracanã, 20550-013, Rio de Janeiro, RJ, Brazil,
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47
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Cardoso PG, Grilo TF, Reis AT, Coelho JP, Pereira E, Pardal MA. Field transplantation of the bivalve Scrobicularia plana along a mercury gradient in Ria de Aveiro (Portugal): uptake and depuration kinetics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 512-513:55-61. [PMID: 25613770 DOI: 10.1016/j.scitotenv.2015.01.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 01/12/2015] [Accepted: 01/12/2015] [Indexed: 06/04/2023]
Abstract
The bioaccumulation and depuration capabilities of mercury by the edible bivalve Scrobicularia plana was studied in a coastal lagoon (Ria de Aveiro, Portugal) through a transplantation experiment. Little information on this topic is available in the literature, especially concerning different tissues' responses to contaminant exposure, but the present study is one of the few works that can surpass this knowledge gap. Organisms from a reference area were transplanted to two different contaminated areas in the Ria de Aveiro. In both areas, the bivalves (i.e., entire organism, digestive gland and the rest of the organism) presented a similar saturation model of mercury accumulation, the digestive gland being the tissue that reached the highest concentrations after 25 days of exposure to the contaminant. During this short uptake period, the transplanted organisms reached 20-30% of the concentrations observed in resident contaminated organisms. After the exposure period, the organisms were transplanted to a clean area for more than 25 days of depuration. At the end of the transplantation period, organisms lost approximately 50% of their mercury body burden (60%: the entire organism and digestive gland; 35%: gills and 40%: the rest of the organism) and the ones from the least contaminated site almost reached the concentrations recorded in the reference area. So, the results suggest that S. plana is a promising biomonitoring species, since it accumulates the contaminant in a considerable extent quite rapidly and at the same time it has a low metal retention capacity (low biological half-life) when exposed to clean sediments.
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Affiliation(s)
- P G Cardoso
- MARE - Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, 3004-517 Coimbra, Portugal.
| | - T F Grilo
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3001-455 Coimbra, Portugal
| | - A T Reis
- CESAM - Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - J P Coelho
- CESAM - Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - E Pereira
- CESAM - Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - M A Pardal
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3001-455 Coimbra, Portugal
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Martins MVA, Silva F, Laut LLM, Frontalini F, Clemente IMMM, Miranda P, Figueira R, Sousa SHM, Dias JMA. Response of benthic foraminifera to organic matter quantity and quality and bioavailable concentrations of metals in Aveiro Lagoon (Portugal). PLoS One 2015; 10:e0118077. [PMID: 25706860 PMCID: PMC4338042 DOI: 10.1371/journal.pone.0118077] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 01/05/2015] [Indexed: 12/04/2022] Open
Abstract
This work analyses the distribution of living benthic foraminiferal assemblages of surface sediments in different intertidal areas of Ria de Aveiro (Portugal), a polihaline and anthropized coastal lagoon. The relationships among foraminiferal assemblages in association with environmental parameters (temperature, salinity, Eh and pH), grain size, the quantity and quality of organic matter (enrichment in carbohydrates, proteins and lipids), pollution caused by metals, and mineralogical data are studied in an attempt to identify indicators of adaptability to environmental stress. In particular, concentrations of selected metals in the surficial sediment are investigated to assess environmental pollution levels that are further synthetically parameterised by the Pollution Load Index (PLI). The PLI variations allowed the identification of five main polluted areas. Concentrations of metals were also analysed in three extracted phases to evaluate their possible mobility, bioavailability and toxicity in the surficial sediment. Polluted sediment in the form of both organic matter and metals can be found in the most confined zones. Whereas enrichment in organic matter and related biopolymers causes an increase in foraminifera density, pollution by metals leads to a decline in foraminiferal abundance and diversity in those zones. The first situation may be justified by the existence of opportunistic species (with high reproduction rate) that can live in low oxic conditions. The second is explained by the sensitivity of some species to pressure caused by metals. The quality of the organic matter found in these places and the option of a different food source should also explain the tolerance of several species to pollution caused by metals, despite their low reproductive rate in the most polluted areas. In this study, species that are sensitive and tolerant to organic matter and metal enrichment are identified, as is the differential sensitivity/tolerance of some species to metals enrichment.
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Affiliation(s)
- Maria Virgínia Alves Martins
- Universidade do Estado do Rio de Janeiro, Faculdade de Geologia, Departamento de Estratigrafia e Paleontologia. Av. São Francisco Xavier, 524, sala 4037F, Maracanã. 20550-013 Rio de Janeiro, RJ, Brasil
- Universidade de Aveiro, Dpto. Geociências, GeoBioTec, CESAM, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Frederico Silva
- Universidade Federal do Rio de Janeiro—UFRJ, Laboratório de Palinofácies & Fácies Orgânicas—LAFO, Av. Athos da Silveira, 274 (prédio do CCMN), bloco G, Campus Ilha do Fundão, 21.949-900, Rio de Janeiro, RJ, Brasil
| | - Lazaro L. M. Laut
- Laboratório de Micropaleontologia—LabMicro, Universidade Federal do Estado do Rio de Janeiro—UNIRIO, Av. Pasteur, 436, Urca, Rio de Janeiro, 22290-240, RJ, Brasil
| | - Fabrizio Frontalini
- Università degli Studi di Urbino "Carlo Bo", Dipartimento di Scienze della Terra, della Vita e dell'Ambiente (DiSTeVA), Urbino, Italy
| | - Iara M. M. M. Clemente
- Universidade do Estado do Rio de Janeiro, Faculdade de Geologia, Departamento de Estratigrafia e Paleontologia. Av. São Francisco Xavier, 524, sala 4037F, Maracanã. 20550-013 Rio de Janeiro, RJ, Brasil
| | - Paulo Miranda
- Universidade de Aveiro, Dpto. Geociências, GeoBioTec, CESAM, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Rubens Figueira
- Instituto Oceanográfico, Universidade de São Paulo, 3091-6502 São Paulo, Brasil
| | - Silvia H. M. Sousa
- Instituto Oceanográfico, Universidade de São Paulo, 3091-6502 São Paulo, Brasil
| | - João M. Alveirinho Dias
- CIMA, Centro de investigação Marinha e Ambiental, Universidade do Algarve, Campus de Gambelas, Faro, Portugal
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49
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Anjum NA, Duarte AC, Pereira E, Ahmad I. Juncus maritimus root biochemical assessment for its mercury stabilization potential in Ria de Aveiro coastal lagoon (Portugal). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:2231-2238. [PMID: 25175353 DOI: 10.1007/s11356-014-3455-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Accepted: 08/14/2014] [Indexed: 06/03/2023]
Abstract
Major endogenous biochemical properties can make plants ideal agents for metal/metalloid-contaminated site cleanup. This study investigates the biochemistry of Juncus maritimus (Lam) roots for its high mercury (Hg) stabilization potential in the sediments of the Ria de Aveiro coastal lagoon (Portugal), which received Hg-rich effluents from a chlor-alkali industry between 1950 and 1994. J. maritimus plants were collected at a reference (R) site and three sites with the highest (L1), moderate (L2), and the lowest (L3) Hg contamination levels. The highest Hg-harboring/stabilizing J. maritimus roots at L1, exhibited significantly elevated damage endpoints (H2O2; lipid peroxidation, LPO; electrolyte leakage, EL; protein oxidation, PO; proline) which were accompanied by differential changes in H2O2-metabolizing defense system components (ascorbate peroxidase, catalase, glutathione peroxidase, glutathione S-transferase), glutathione reductase and the contents of both reduced and oxidized glutathione. Trends in measured endpoints reached maximum levels at L1 followed by L2 and L3. Cross-talks on root-Hg status and the studied biochemical traits revealed (a) high Hg-accrued elevations in oxidative stress as an obvious response; (b) Hg-stabilization potential of J. maritimus roots as a result of a successful mitigation of elevated high Hg-induced H2O2, and its anomalies such as LPO, EL, and PO; and (c) the induction of and a fine synchronization between non-glutathione and glutathione-based systems. Overall, the study unveiled biochemical mechanisms underlying root tolerance to Hg burden-accrued anomalies which, in turn, helped J. maritimus during Hg-stabilization.
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Affiliation(s)
- Naser A Anjum
- Department of Chemistry and Center for Environmental and Marine Studies (CESAM), University of Aveiro, 3810-193, Aveiro, Portugal
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50
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Vieira HC, Morgado F, Soares AMVM, Abreu SN. Real and potential mercury accumulation in human scalp of adolescents: a case study. Biol Trace Elem Res 2015; 163:19-27. [PMID: 25359702 DOI: 10.1007/s12011-014-0159-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 10/21/2014] [Indexed: 11/25/2022]
Abstract
Mercury (Hg) concentration in human hair is used to estimate methylmercury (MeHg) exposure and establish a reference dose for MeHg intake. In this study, Hg accumulation and MeHg intake were evaluated in relation to fish consumption habits in adolescents from two coastal areas: Angra do Heroísmo (Azores archipelago) and Murtosa (Portuguese mainland). Results showed that Hg concentration and MeHg intake increased with increasing fish consumption. In spite of that, Hg concentrations remained relatively low when compared with World Health Organization "no observed adversary effect level"; therefore, risk for mercury exposure should not be considered. Adolescents revealed a similar range of Hg concentrations (0.03-2.60 μg g(-1)) in scalp hair, apart from being exposed to natural or anthropogenic Hg source (Azores and Mainland, respectively). Nevertheless, Mainland volunteers generally exhibited higher values of Hg accumulation, being approximately 50 % of the results above 1 μg g(-1). Hg concentrations increased in both adolescent groups according to the weekly rate of fish meals, however, not linearly in the highest fish consumption rates. In fact, considering the adolescents' group having over one fish meal per week, the Hg bioaccumulation pattern found in the respective scalp hair suggests the ability of the human body to induce a self-protection response, probably mitigating Hg levels in the blood when experiencing increasing Hg exposure due to fish uptake. Actual and potential mercury levels in human scalp of adolescents probably diverge as fish consumption increases, the effective Hg uptake being lower than the expected, reducing risk to human health.
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Affiliation(s)
- H C Vieira
- Department of Biology, University of Aveiro, 3810-193, Aveiro, Portugal,
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