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Romero V, Ruiz F, Prudencio MI, Muñoz JM, Vidal JR, Gómez P, Abad M, Izquierdo T, Dias MI, Marques R, Rodrigues AL, Cáceres LM, González-Regalado ML, Pozo M, Toscano A, Arroyo M. Rare earth elements as statistical sentinels of pollution and paleoenvironments?: Application to a highly polluted estuary in southwestern Spain. MARINE POLLUTION BULLETIN 2023; 186:114419. [PMID: 36525757 DOI: 10.1016/j.marpolbul.2022.114419] [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: 09/08/2022] [Revised: 11/15/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Multivariate analyses have been applied to the REE contents of three cores collected in the Tinto estuary, SW Spain, an extremely polluted area. Results indicate an extremely correlation between all REE, which behave as a single variable. A slight natural pollution peak and three anthropogenic pollution peaks are identified, related with the first mining activities, the Roman period and a recent intensive mining accompanied by a heavy industrial pollution. In all these peaks, the increase of Cu is parallel to that of MREE, which are configured as the best indicators of pollution among REE. Statistical analyses clearly differentiate four groups, each consisting of samples from different environments. Although grain size and this strong pollution alter the study of REE as environmental indicators, it is possible to recognise groups of samples with a common origin or to identify the surface extent of a given pollution peak.
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Affiliation(s)
- Verónica Romero
- Universidad de Huelva, Facultad de Ciencias Experimentales, 21071 Huelva, Spain
| | - Francisco Ruiz
- Universidad de Huelva, Facultad de Ciencias Experimentales, 21071 Huelva, Spain; Centro de Investigación en Patrimonio Histórico, Cultural y Natural, Universidad de Huelva, Spain.
| | | | - Juan Manuel Muñoz
- Universidad de Sevilla, Facultad de Matemáticas, 41012 Sevilla, Spain
| | - Joaquín Rodríguez Vidal
- Universidad de Huelva, Facultad de Ciencias Experimentales, 21071 Huelva, Spain; Centro de Investigación en Patrimonio Histórico, Cultural y Natural, Universidad de Huelva, Spain
| | - Paula Gómez
- Universidad de Huelva, Facultad de Ciencias Experimentales, 21071 Huelva, Spain
| | - Manuel Abad
- Universidad Rey Juan Carlos, Escuela Técnica Superior de Ciencias Experimentales y Tecnología, 28049 Madrid, Spain
| | - Tatiana Izquierdo
- Universidad Rey Juan Carlos, Escuela Técnica Superior de Ciencias Experimentales y Tecnología, 28049 Madrid, Spain
| | - María Isabel Dias
- Centro de Ciências e Tecnologias Nucleares (C(2)TN), Universidade de Lisboa, Portugal
| | - Rosa Marques
- Centro de Ciências e Tecnologias Nucleares (C(2)TN), Universidade de Lisboa, Portugal
| | - Ana Luisa Rodrigues
- Centro de Ciências e Tecnologias Nucleares (C(2)TN), Universidade de Lisboa, Portugal
| | - Luis Miguel Cáceres
- Universidad de Huelva, Facultad de Ciencias Experimentales, 21071 Huelva, Spain
| | | | - Manuel Pozo
- Departamento de Geología y Geoquímica, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Antonio Toscano
- Universidad de Huelva, Facultad de Ciencias Experimentales, 21071 Huelva, Spain
| | - Marta Arroyo
- Universidad de Huelva, Facultad de Ciencias Experimentales, 21071 Huelva, Spain
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2
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Couto CMCM, Ribeiro C. Pollution status and risk assessment of trace elements in Portuguese water, soils, sediments, and associated biota: a trend analysis from the 80s to 2021. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:48057-48087. [PMID: 35567689 DOI: 10.1007/s11356-022-20699-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
Pollution of water bodies and sediments/soils by trace elements remains a global threat and a serious environmental hazard to biodiversity and human's health. Globalization and industrialization resulted in the increase and availability of these substances in the environment posing unpredictable adverse effects to living organisms. To determine pollution status and risk contamination by trace elements, data available in the literature of the last 40 years on trace elements occurrence in three environmental matrices (water bodies, sediments/soils, and biota) from Continental Portugal were collected (about 90 studies). Data were compared to water and sediment quality guidelines to assess potential ecological risks. Most environmentally relevant hazardous elements include Zn, Cu, Cd, Pb, and As. Various studies found trace elements at levels higher than those considered safe by environmental guidelines. In surface waters, Al, Zn, Se, and Ag were found above aquatic life limits in about 60% of the reviewed papers, while Cu, Zn, and As exceed those values in more than 60% of mining waters. Hg and Cd in sediments from mining areas exceeded aquatic life limits and potential ecological risk showed extremely high risk for most of the elements. The data compiled in this review is very heterogenous, varying in terms of sampling schemes, trace elements analysed, and spatiotemporal settings. This heterogenicity leads to data differences that make meaningful comparisons difficult. Nevertheless, the compilation of scattered environmental spatial and temporal trace elements data, of either natural sources or human activity as well as the ultimate effect on biological systems, is of the upmost importance to broaden its knowledge, risk assessment, and implementation of mitigation measures.
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Affiliation(s)
- Cristina M C M Couto
- TOXRUN - Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116, Gandra, Portugal.
- LAQV / REQUIMTE, Departamento de Ciências Químicas, Laboratório de Química Aplicada, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.
| | - Cláudia Ribeiro
- TOXRUN - Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116, Gandra, Portugal
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR/CIMAR), Universidade do Porto, Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208, Matosinhos, Portugal
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3
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Mamede R, Santos A, Díaz S, Ferreira da Silva E, Patinha C, Calado R, Ricardo F. Elemental fingerprints of bivalve shells (Ruditapes decussatus and R. philippinarum) as natural tags to confirm their geographic origin and expose fraudulent trade practices. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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4
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Ricardo F, Mamede R, Bruzos AL, Díaz S, Thébault J, da Silva EF, Patinha C, Calado R. Assessing the elemental fingerprints of cockle shells (Cerastoderma edule) to confirm their geographic origin from regional to international spatial scales. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 814:152304. [PMID: 34963594 DOI: 10.1016/j.scitotenv.2021.152304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 12/06/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
Geographic origin is directly linked to the quality and commercial value of bivalves. The globalization of the seafood trade and the increasing number of fraudulent practices in the bivalves industry has prompted consumers to become increasingly aware on the geographic origin of the seafood they consume. To enhance consumers' confidence and allow authorities to effectively enforce regulations and contain risks that threaten public health, fast and accurate tools must be made available to confirm claims along the trade chain on the geographic origin of bivalves. In the present study the efficiency of using the elemental fingerprints of a small-homogenized subsample of the shell of common cockles (Cerastoderma edule) to confirm their harvesting location is evaluated at different spatial scales: i) regional (along the Galician coast (Spain) - Espasante, Barallobre, Rio Anllóns, Camariñas, Muros, Noia, Carril, Grove, Combarro, Placeres, Moaña, and Baiona), ii) national (along the Portuguese coast - Ria de Aveiro, Óbidos lagoon, Tagus estuary, Sado estuary and Ria Formosa), and iii) international (along the Northeast Atlantic coast - Hejeltefjorden (Norway), Nykobing Mors (Denmark), Sylt (Germany), Slikken van Viane (Netherlands), Roscoff (France), Plymouth (England), Swansea (Wales), Ria de Aveiro (Portugal) and Oualidia (Morocco). Results confirm that elemental fingerprints of bivalve shells are significantly different among locations and that they can be successfully used with high accuracy to discriminate the geographic origin of cockles at all spatial scales surveyed (97.2% at regional scale, 99.3% at national scale and 100% at international scale). Overall, elemental fingerprints of a small-homogenized subsample of the shell showed to be a replicable, low cost and fast tool to reliably trace the place of origin of cockles sampled at different spatial scales, with success rate of discrimination directly increasing with distance between collection sites.
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Affiliation(s)
- Fernando Ricardo
- ECOMARE, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal.
| | - Renato Mamede
- ECOMARE, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal
| | - Alicia L Bruzos
- Department of Zoology, Genetics and Physical Anthropology, Genomes and Disease Group, CIMUS, Universidade de Santiago de Compostela, Campus of Santiago de Compostela, 15706 Santiago de Compostela, Spain; Centro de Investigaciones Marina, Universidade de Vigo, ECIMAT, Vigo 36331, Spain
| | - Seila Díaz
- Department of Zoology, Genetics and Physical Anthropology, Genomes and Disease Group, CIMUS, Universidade de Santiago de Compostela, Campus of Santiago de Compostela, 15706 Santiago de Compostela, Spain; Centro de Investigaciones Marina, Universidade de Vigo, ECIMAT, Vigo 36331, Spain
| | - Julien Thébault
- Univ Brest, CNRS, IRD, Ifremer, LEMAR, Plouzané 29280, France
| | - Eduardo Ferreira da Silva
- Departamento de Geociências & GEOBIOTEC, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Carla Patinha
- Departamento de Geociências & GEOBIOTEC, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Ricardo Calado
- ECOMARE, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Santiago University Campus, 3810-193 Aveiro, Portugal.
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Mil-Homens M, Brito P, Caetano M, Costa AM, Lebreiro S, Trancoso M, de Stigter H. Influence of diagenetic processes and terrestrial/anthropogenic sources in the REE contents of the Cascais submarine canyon (Iberian western coast). THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 773:145539. [PMID: 33592484 DOI: 10.1016/j.scitotenv.2021.145539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 01/17/2021] [Accepted: 01/25/2021] [Indexed: 06/12/2023]
Abstract
Temporal variations of rare earth elements (REE) and their fractionation patterns, major elements, Pb and Hg were determined in two multicores collected at 445 and 2100 m water depth (mwd) in the Cascais submarine canyon (CSC). The PAAS-normalized REE patterns suggest mixing of Tagus estuarine and marine sediments, marked by MREE (Nd-Dy series) enrichment and by positive Eu-anomaly, with marine sediments. The positive Eu/Eu* implies incorporation of detrital feldspar minerals derived from the estuary. Ce/Ce*, (La/Yb)PAAS and (Nd/Yb)PAAS show differences between the two cores. Core 252-35 from the shallower site is enriched in HREE (Ho-Lu series) over LREE (La-Pr series), a pattern also found in the Tagus estuary in the vicinity of an abandoned chemical complex, where the environment is affected by the legacy of massive-sulfide ores processing. There seems to be only limited down-canyon sediment transport to the deeper reaches where core 252-32 was collected. This deeper site shows Ce/Ce* peaks coinciding with low (La/Yb)PAAS values suggesting preferential diagenetic remobilization of LREE relative to HREE. Upcore Pb/Al and Hg/Corg trends observed in both cores indicate dispersion of the anthropogenic component from the estuary through the CSC, which is less obvious from the ∑REE/Al trends particularly in the deeper site. This may suggest the influence of diagenetic processes in the REE signal, associated with relatively low sediment accumulation rates.
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Affiliation(s)
- Mário Mil-Homens
- IPMA - Portuguese Institute of Sea and Atmosphere, Division of Oceanography and Marine Environment, Rua Alfredo Magalhães Ramalho, 6, 1495-165 Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões. Av. General Norton de Matos, s/n 4450-208 Matosinhos, Portugal.
| | - Pedro Brito
- IPMA - Portuguese Institute of Sea and Atmosphere, Division of Oceanography and Marine Environment, Rua Alfredo Magalhães Ramalho, 6, 1495-165 Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões. Av. General Norton de Matos, s/n 4450-208 Matosinhos, Portugal
| | - Miguel Caetano
- IPMA - Portuguese Institute of Sea and Atmosphere, Division of Oceanography and Marine Environment, Rua Alfredo Magalhães Ramalho, 6, 1495-165 Algés, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões. Av. General Norton de Matos, s/n 4450-208 Matosinhos, Portugal
| | - Ana Maria Costa
- LARC/DGPC, Laboratório de Arqueociências and CIBIO/InBIO, Calçada do Mirante à Ajuda, 10A, 1300-418 Lisboa, Portugal; IDL - Instituto Dom Luíz, University of Lisbon - FCUL, Campo Grande Edifício C1, 1749-016 Lisboa, Portugal
| | - Susana Lebreiro
- IGME - Instituto Geológico y Minero de España, Área de Geología Marina, Calle Ríos Rosas, 23, 28003 Madrid, Spain
| | - Maria Trancoso
- LNEG - Laboratório Nacional de Energia e Geologia, Laboratório de Biocombustíveis e Biomassa, Estrada do Paço do Lumiar, 22, Ed. E, 1649-038 Lisboa, Portugal
| | - Henko de Stigter
- NIOZ, Royal Netherlands Institute for Sea Research, Department of Ocean Systems, 1790 AB Den Burg, the Netherlands
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Pavoni E, Crosera M, Petranich E, Oliveri P, Klun K, Faganeli J, Covelli S, Adami G. Trace elements in the estuarine systems of the Gulf of Trieste (northern Adriatic Sea): A chemometric approach to depict partitioning and behaviour of particulate, colloidal and truly dissolved fractions. CHEMOSPHERE 2020; 252:126517. [PMID: 32217407 DOI: 10.1016/j.chemosphere.2020.126517] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 03/02/2020] [Accepted: 03/15/2020] [Indexed: 06/10/2023]
Abstract
Estuaries are transitional water systems where the hydrodynamic processes governing water circulation actively influence suspended particle transport and deposition. In the estuarine mixing zone, the strong physico-chemical gradients resulting from the interaction between river freshwater and seawater may affect the distribution, mobility and fate of several potentially toxic compounds, among which trace elements are of major concern. Knowledge regarding the partitioning behaviour of trace elements would provide essential scientific support for the environmental management of estuaries. In this study, trace element occurrence and phase partitioning among suspended particulate matter, colloidal material and the truly dissolved fraction were investigated in the main Italian and Slovenian estuarine environments of the Gulf of Trieste (northern Adriatic Sea). Further information about the water quality at the river mouths was provided and, in addition to the traditional evaluation of single chemical parameters, a multi-way principal component analysis was employed in order to depict disparities among sampling sites, water layers and seasonal conditions with the final aim of evaluating trace element phase partitioning. Results indicated that the suspended particulate matter acts as the main effective vehicle for Cu, Cr, Fe, Ni and Pb, and enhanced adsorption processes resulted in elevated partitioning coefficients, especially for Fe and Pb. Although disparities occurred between sampling sites and seasons, trace elements showing affinity for the solid phase appeared to be partially bound to the colloidal material. Conversely, As and Cs prevailed in the truly dissolved fraction, especially in seawater and showed scarce affinity for both the suspended particles and colloids.
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Affiliation(s)
- Elena Pavoni
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy; Department of Mathematics and Geosciences, University of Trieste, Via E. Weiss 2, 34127, Trieste, Italy.
| | - Matteo Crosera
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Elisa Petranich
- Department of Mathematics and Geosciences, University of Trieste, Via E. Weiss 2, 34127, Trieste, Italy
| | - Paolo Oliveri
- Department of Pharmacy, University of Genova, Viale Cembrano 4, I-16148, Genova, Italy
| | - Katja Klun
- Marine Biology Station, National Institute of Biology, Fornace 41, 6330, Piran, Slovenia
| | - Jadran Faganeli
- Marine Biology Station, National Institute of Biology, Fornace 41, 6330, Piran, Slovenia
| | - Stefano Covelli
- Department of Mathematics and Geosciences, University of Trieste, Via E. Weiss 2, 34127, Trieste, Italy
| | - Gianpiero Adami
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
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Ge M, Liu G, Liu H, Yuan Z, Liu Y. The distributions, contamination status, and health risk assessments of mercury and arsenic in the soils from the Yellow River Delta of China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:35094-35106. [PMID: 31679141 DOI: 10.1007/s11356-019-06435-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 09/05/2019] [Indexed: 06/10/2023]
Abstract
The surface soils were collected from four areas in the Yellow River Delta (YRD), including three functional areas in the natural reserve of the YRD (the core area, buffer area, and experimental area) and a neighboring area of the natural reserve. The total concentrations, speciations, contamination status, and health risk assessments of the mercury (Hg) and arsenic (As) in surface soils of the YRD were investigated. The average Hg concentration was about three times that of the background value, while As was just slightly higher than the background. Hg levels in the sites of experimental area were significantly higher than those in the core area and buffer area, which was consistent with the human activity intensities of the three functional areas. However, no significant differences of As levels were observed across different areas. According to the sequential extraction experiments, only less than 5% of Hg and As were associated with the exchangeable fraction, while over 80% of them were found in the residual fraction, indicating low mobility and bioavailability of both Hg and As. The soil contamination status assessments suggested a "good state," and the health risk assessments indicated a "low risk" of Hg and As in the soils of YRD.
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Affiliation(s)
- Meng Ge
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, Anhui, China
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, 710075, Shaanxi, China
- University of Hong Kong Joint Advanced Research Centre, University of Science and Technology of China-City, Suzhou, 215123, Jiangsu, China
| | - Guijian Liu
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, Anhui, China.
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, 710075, Shaanxi, China.
| | - Houqi Liu
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, Anhui, China
- Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou, 215123, China
| | - Zijiao Yuan
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, Anhui, China
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, 710075, Shaanxi, China
| | - Yuan Liu
- CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, Anhui, China
- State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, 710075, Shaanxi, China
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Monteiro CE, Correia Dos Santos M, Cobelo-García A, Brito P, Caetano M. Platinum and rhodium in Tagus estuary, SW Europe: sources and spatial distribution. ENVIRONMENTAL MONITORING AND ASSESSMENT 2019; 191:579. [PMID: 31435745 DOI: 10.1007/s10661-019-7738-z] [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: 03/18/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
The spatial distribution of Pt and Rh was assessed in Tagus estuary and their sources discussed. Both elements were analysed in superficial sediment samples (n = 72) by adsorptive cathodic stripping voltammetry. Concentrations varied within the following ranges: 0.18-5.1 ng Pt g-1 and 0.02-1.5 ng Rh g-1. Four distinct areas were established: "reference"; waste- and pluvial water discharge; motorway bridges and industrialised areas. The calculated reference median concentrations were 0.55 ng Pt g-1 and 0.27 ng Rh g-1. Linear relationships were found between Pt and Al, Fe and LOI, whereas Rh depicted scattered patterns. The highest concentrations were found nearby industrialised areas and a motorway bridge, corresponding to the enrichment of 10 and 6 times the background of Pt and Rh, respectively. The main sources of contamination to the Tagus estuary derived from historical and present industrial activities and from automotive catalytic converters. Large variations of Pt/Rh ratio (0.48-39) point to different sources, reactivity and dilution effects.
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Affiliation(s)
- Carlos Eduardo Monteiro
- Division of Oceanography and Marine Environment, IPMA-Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho 6, 1495-165, Algés, Portugal.
- Environmental Biogeochemistry, Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, Torre Sul Lab 11.6-2, 1049-001, Lisbon, Portugal.
| | - Margarida Correia Dos Santos
- Environmental Biogeochemistry, Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, Torre Sul Lab 11.6-2, 1049-001, Lisbon, Portugal
| | - Antonio Cobelo-García
- Bioxeoquímica Mariña, Instituto de Investigacións Mariñas IIM-CSIC, Eduardo Cabello 6, 36208, Vigo, Spain
| | - Pedro Brito
- Division of Oceanography and Marine Environment, IPMA-Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho 6, 1495-165, Algés, Portugal
| | - Miguel Caetano
- Division of Oceanography and Marine Environment, IPMA-Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho 6, 1495-165, Algés, Portugal
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Pereira R, Leite E, Raimundo J, Guilherme S, Puga S, Pinto-Ribeiro F, Santos MA, Canário J, Almeida A, Pacheco M, Pereira P. Metals(loids) targeting fish eyes and brain in a contaminated estuary - Uncovering neurosensory (un)susceptibility through bioaccumulation, antioxidant and morphometric profiles. MARINE ENVIRONMENTAL RESEARCH 2018; 140:403-411. [PMID: 30054132 DOI: 10.1016/j.marenvres.2018.07.001] [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: 02/18/2018] [Revised: 06/08/2018] [Accepted: 07/06/2018] [Indexed: 06/08/2023]
Abstract
This study examined the susceptibility of fish (Liza aurata) eyes and brain to metals(loids) contamination under realistic exposure conditions. A multidimensional approach was applied to fish caught at a chronically contaminated site (BAR) and at a reference site of the Tagus estuary (Portugal), which comprised metals(loids) accumulation in eyes and brain together with a battery of enzymatic and non-enzymatic antioxidants, as well as brain morphometry (i.e. cell density). Trace element levels in the blood, gills, liver and kidney allowed interpretations on their preferential pathway(s) to the eyes and brain. Metals(loids) accumulation pointed out the elevated vulnerability of the fish eyes at BAR, probably related with the direct waterborne uptake. Pb uptake in L. aurata eyes could be associated both with water and indirect pathways. At the most contaminated site, metals(loids) were on the basis of pro-oxidant conditions in the ocular tissues, while no indication of toxicity was recorded in the brain. Overall, the results disclosed a differential bioaccumulation among fish organs, suggesting that, in the L. aurata population studied, metal organotropism underlie the lower susceptibility of the brain comparing to the eyes. However, mechanisms remain little understood and further work is needed.
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Affiliation(s)
- Ricardo Pereira
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Eduarda Leite
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Joana Raimundo
- IPMA - Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisboa, Portugal
| | - Sofia Guilherme
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Sónia Puga
- Life and Health Sciences Research Institute (ICVS), School of Medicine (EM), 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 Medicine (EM), Campus of Gualtar, University of Minho, 4750-057 Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Maria Ana Santos
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - João Canário
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Armando Almeida
- Life and Health Sciences Research Institute (ICVS), School of Medicine (EM), 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
| | - Patrícia Pereira
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
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Garcia-Ordiales E, Covelli S, Rico JM, Roqueñí N, Fontolan G, Flor-Blanco G, Cienfuegos P, Loredo J. Occurrence and speciation of arsenic and mercury in estuarine sediments affected by mining activities (Asturias, northern Spain). CHEMOSPHERE 2018; 198:281-289. [PMID: 29421740 DOI: 10.1016/j.chemosphere.2018.01.146] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/18/2018] [Accepted: 01/27/2018] [Indexed: 06/08/2023]
Abstract
Sediments contaminated by Hg and As from two historical mining areas have been deposited in the Nalón estuary (Asturias, northern Spain) since 1850. Total mercury (Hgtotal) concentrations in the sediments range from 0.20 μg g-1 to 1.33 μg g-1, most of it in the form of sulphides. Concentrations of methylmercury (303.20-865.40 pg g-1) are up to two orders of magnitude lower than the concentration of Hgtotal. Total As concentration (Astotal) is enriched compared to the background level for the area. The relative abundance of As(V) on As(III) in the sediments ranges from 97.6% to 100%, whereas inorganic Hg accounts for more than 99% of the total Hg. The occurrence of the most toxic species, inorganic As(III) and organic methylmercury, seem to be related to redox conditions together with the amounts of sulphur which act as natural barriers which inhibit the biological and chemical speciation processes. Despite the high amounts of Hg and As present in the sediments, their transference to the water column appear to be limited thus converting sediments in an effective sink of both elements. Special attention should be paid to potential variations of the environmental conditions which might increase the element mobility and exchange between sediments and the water column.
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Affiliation(s)
- Efrén Garcia-Ordiales
- ISYMA Research Group, Mining, Energy and Materials Engineering School, University of Oviedo, Oviedo, Spain.
| | - Stefano Covelli
- Department of Mathematics and Geosciences, University of Trieste, Trieste, Italy; Co.N.I.S.Ma. Consorzio Nazionale Interuniversitario per le Scienze del Mare, Piazzale Flaminio 9, 00196, Rome, Italy
| | - Jose Manuel Rico
- Department of Organisms and Systems Biology, University of Oviedo, Oviedo, Spain
| | - Nieves Roqueñí
- ISYMA Research Group, Mining, Energy and Materials Engineering School, University of Oviedo, Oviedo, Spain
| | - Giorgio Fontolan
- Department of Mathematics and Geosciences, University of Trieste, Trieste, Italy; Co.N.I.S.Ma. Consorzio Nazionale Interuniversitario per le Scienze del Mare, Piazzale Flaminio 9, 00196, Rome, Italy
| | - German Flor-Blanco
- GeoQUO Research Group, Department of Geology, University of Oviedo, Oviedo, Spain
| | - Pablo Cienfuegos
- ISYMA Research Group, Mining, Energy and Materials Engineering School, University of Oviedo, Oviedo, Spain
| | - Jorge Loredo
- ISYMA Research Group, Mining, Energy and Materials Engineering School, University of Oviedo, Oviedo, Spain
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11
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Brito P, Prego R, Mil-Homens M, Caçador I, Caetano M. Sources and distribution of yttrium and rare earth elements in surface sediments from Tagus estuary, Portugal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 621:317-325. [PMID: 29190555 DOI: 10.1016/j.scitotenv.2017.11.245] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 10/17/2017] [Accepted: 11/21/2017] [Indexed: 06/07/2023]
Abstract
The distribution and sources of yttrium and rare-earth elements (YREE) in surface sediments were studied on 78 samples collected in the Tagus estuary (SW Portugal, SW Europe). Yttrium and total REE contents ranged from 2.4 to 32mg·kg-1 and 18 to 210mg·kg-1, respectively, and exhibited significant correlations with sediment grain-size, Al, Fe, Mg and Mn, suggesting a preferential association to fine-grained material (e.g. aluminosilicates but also Al hydroxides and Fe oxyhydroxides). The PAAS (Post-Archean Australian Shale) normalized patterns display three distinct YREE fractionation pattern groups along the Tagus estuary: a first group, characterized by medium to coarse-grained material, a depleted and almost flat PAAS-normalized pattern, with a positive anomaly of Eu, representing one of the lithogenic components; a second group, characterized mainly by fine-grained sediment, with higher shale-normalized ratios and an enrichment of LREE relative to HREE, associated with waste water treatment plant (WWTP) outfalls, located in the northern margin; and, a third group, of fine-grained material, marked by a significant enrichment of Y, a depletion of Ce and an enrichment of HREE over LREE, located near an inactive chemical-industrial complex (e.g. pyrite roast plant, chemical and phosphorous fertilizer industries), in the southern margin. The data allow the quantification of the YREE contents and its spatial distribution in the surface sediments of the Tagus estuary, identifying the main potential sources and confirming the use of rare earth elements as tracers of anthropogenic activities in highly hydrodynamic estuaries.
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Affiliation(s)
- Pedro Brito
- IPMA - Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal; FCUL - Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal.
| | - Ricardo Prego
- CSIC - Instituto de Investigaciones Marinas (IIM-CSIC), Av. Eduardo Cabello, 6, E-36208 Vigo, Spain
| | - Mário Mil-Homens
- IPMA - Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal
| | - Isabel Caçador
- FCUL - Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisbon, Portugal
| | - Miguel Caetano
- IPMA - Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal
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12
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Distribution of Heavy Metals in Core Marine Sediments of Coastal East Malaysia by Instrumental Neutron Activation Analysis and Inductively Coupled Plasma Spectroscopy. Appl Radiat Isot 2018; 132:222-231. [DOI: 10.1016/j.apradiso.2017.11.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 09/21/2017] [Accepted: 11/08/2017] [Indexed: 11/23/2022]
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13
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Chiesa S, Chainho P, Almeida Â, Figueira E, Soares AMVM, Freitas R. Metals and As content in sediments and Manila clam Ruditapes philippinarum in the Tagus estuary (Portugal): Impacts and risk for human consumption. MARINE POLLUTION BULLETIN 2018; 126:281-292. [PMID: 29421099 DOI: 10.1016/j.marpolbul.2017.10.088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/06/2017] [Accepted: 10/30/2017] [Indexed: 06/08/2023]
Abstract
The Manila clam is emerging as a relevant species for the Portuguese market. The present work was conducted in the Tagus estuary to evaluate 1) the metals and As content in the sediments of the Tagus estuary, especially on those areas subjected to Manila clam harvesting 2) the metals and As content in clams, and the risk associated with their consumption 3) the physiological and biochemical responses of the clam to metals and As contamination, and its possible role as a pollution bioindicator in the estuarine environment. The most contaminated sediments were identified nearby industrial areas, nevertheless clams collected in low contaminated areas showed high metals and As concentrations. The condition index, glycogen content, membrane oxidative damage, biotransformation enzymes and metallothioneins showed consistent responses to metals and As content in clams. Results emphasize the need for the development of a management plan for the species exploitation in the Tagus estuary.
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Affiliation(s)
- Stefania Chiesa
- Department of Biology, CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Paula Chainho
- MARE, Marine and Environmental Sciences Centre, Faculty of Sciences, Lisbon University, Campo Grande, 1749-016 Lisbon, Portugal
| | - Ângela Almeida
- Department of Biology, CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Etelvina Figueira
- Department of Biology, CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Amadeu M V M Soares
- Department of Biology, CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Rosa Freitas
- Department of Biology, CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
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14
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Rodrigues R, Lourenço J, Pereira P, Carvalho S, Mendo S. Effects of metal contamination on the gene expression profile of two benthic species: Cerastoderma edule and Ruditapes philippinarum. MARINE POLLUTION BULLETIN 2017; 125:157-165. [PMID: 28811037 DOI: 10.1016/j.marpolbul.2017.08.014] [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: 02/21/2017] [Revised: 08/03/2017] [Accepted: 08/05/2017] [Indexed: 06/07/2023]
Abstract
This study aimed to identify new biomarkers for metal exposure in two bivalve species. Suppressive Subtractive Hybridization (SSH) was employed to evaluate the transcriptomic response of Cerastoderma edule and Ruditapes philippinarum to metal pollution. Protein synthesis and catalytic activity were the most affected metabolic processes in C. edule and R. philippinarum, respectively. Also, different genes responded to the effect of contamination in each species. The different response observed in both species reinforces the importance of including more than one bioindicator species in risk assessment studies. These results provide the basis for new studies, which are necessary for further validation of the use of the identified genes as molecular biomarkers for metal exposure.
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Affiliation(s)
- Raquel Rodrigues
- Centre for Environmental and Marine Studies and Department of Biology (CESAM), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - Joana Lourenço
- Centre for Environmental and Marine Studies and Department of Biology (CESAM), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Patrícia Pereira
- Centre for Environmental and Marine Studies and Department of Biology (CESAM), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; IPMA - Portuguese Institute for the Sea and Atmosphere, Avenida Brasília, 1449-006 Lisbon, Portugal
| | - Susana Carvalho
- King Abdullah University of Science and Technology (KAUST), Red Sea Research Center (RSRC), Biological and Environmental Sciences and Engineering (BESE), Thuwal 23955-6900, Saudi Arabia
| | - Sonia Mendo
- Centre for Environmental and Marine Studies and Department of Biology (CESAM), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
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15
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Ricardo F, Maciel E, Domingues MR, Calado R. Spatio-temporal variability in the fatty acid profile of the adductor muscle of the common cockle Cerastoderma edule and its relevance for tracing geographic origin. Food Control 2017. [DOI: 10.1016/j.foodcont.2017.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Catry T, Figueira P, Carvalho L, Monteiro R, Coelho P, Lourenço PM, Catry P, Tchantchalam Q, Catry I, Botelho MJ, Pereira E, Granadeiro JP, Vale C. Evidence for contrasting accumulation pattern of cadmium in relation to other elements in Senilia senilis and Tagelus adansoni from the Bijagós archipelago, Guinea-Bissau. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:24896-24906. [PMID: 28918583 DOI: 10.1007/s11356-017-9902-8] [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: 02/08/2017] [Accepted: 08/03/2017] [Indexed: 06/07/2023]
Abstract
Shellfish harvesting in intertidal areas is a widespread and economically important activity in many countries across West Africa. However, in some areas, there is virtually no information concerning the levels of contaminants (and other elements related to nutritional aspects) in the harvested species. We collected sediments and several individuals of the West African bloody cockle Senilia senilis and of the razor clam Tagelus adansoni during the dry season of 2015 nearby three islands in the Bijagós archipelago, Guinea-Bissau. Aluminium, Ca, Fe, Mg, As, Cd, Co, Cr, Cu, Mn, Ni, Pb and Zn were determined in sediments and whole soft tissues of the two bivalves. Sediments showed uniformly low trace element concentrations, pointing to an ecosystem with low levels of trace element contamination. T. adansoni presented higher concentrations of most elements than S. senilis, with the exception of Cd that showed up to 40 times higher values in S. senilis than in T. adansoni from the same sites. Furthermore, Cd concentrations (25±8.7 mg kg-1, dw) in S. senilis are clearly above the maximum level established for human consumption. Future studies should clarify whether biological factors are the major responsible for this unusual situation.
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Affiliation(s)
- Teresa Catry
- CESAM and Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, 1749-016, Lisbon, Portugal
| | - Paula Figueira
- Central Laboratory of Analysis (LCA), University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
- CICECO (Aveiro Institute of Materials) and Chemistry Department, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal.
| | - Lina Carvalho
- Central Laboratory of Analysis (LCA), University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Rui Monteiro
- CESAM and Chemistry Department, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua dos Bragas, 289, 4050-123, Porto, Portugal
| | - Pedro Coelho
- CESAM and Chemistry Department, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua dos Bragas, 289, 4050-123, Porto, Portugal
| | - Pedro Miguel Lourenço
- CESAM and Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, 1749-016, Lisbon, Portugal
| | - Paulo Catry
- MARE - Marine and Environmental Sciences Center, ISPA-Instituto Universitário, Rua Jardim do Tabaco 34, 1149-041, Lisbon, Portugal
| | | | - Inês Catry
- Centro de Ecologia Aplicada "Prof. Baeta Neves", InBio - Rede de Investigação em Biodiversidade e Biologia Evolutiva, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017, Lisbon, Portugal
- School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
| | - Maria J Botelho
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua dos Bragas, 289, 4050-123, Porto, Portugal
| | - Eduarda Pereira
- Central Laboratory of Analysis (LCA), University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
- CESAM and Chemistry Department, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - José Pedro Granadeiro
- CESAM and Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, 1749-016, Lisbon, Portugal
| | - Carlos Vale
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Rua dos Bragas, 289, 4050-123, Porto, Portugal
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17
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Negrin VL, Teixeira B, Godinho RM, Mendes R, Vale C. Phytochelatins and monothiols in salt marsh plants and their relation with metal tolerance. MARINE POLLUTION BULLETIN 2017; 121:78-84. [PMID: 28554828 DOI: 10.1016/j.marpolbul.2017.05.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 05/12/2017] [Accepted: 05/17/2017] [Indexed: 06/07/2023]
Abstract
Phytochelatins (PCs) and monothiols and their relation with trace element concentrations were studied in three plant species from two Portuguese salt marshes. Belowground tissues showed always higher element concentrations, while enhanced values of monothiols were found in aboveground biomass. Glutathione was usually the most abundant monothiol. The concentration of total PCs was higher in leaves or stems than in roots of Halimione portulacoides and Sarcocornia perennis, while in Spartina maritima the highest concentrations were reported in large roots. PC2 was synthesized by all tissues and species and was higher in large roots of S. maritima. PC4 and PC5 were in high levels in small roots of S. maritima. PC2 was positively correlated with As, Zn and Pb. Although being the first evidence of PCs and monothiols in these species under natural conditions, our results do not point to a simple relationship with elements concentrations, suggesting a complex mechanism involved.
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Affiliation(s)
- Vanesa L Negrin
- IPMA - Portuguese Institute for the Sea and Atmosphere, R. Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal.
| | - Bárbara Teixeira
- IPMA - Portuguese Institute for the Sea and Atmosphere, R. Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal
| | - Rita M Godinho
- IPMA - Portuguese Institute for the Sea and Atmosphere, R. Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal
| | - Rogério Mendes
- IPMA - Portuguese Institute for the Sea and Atmosphere, R. Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal
| | - Carlos Vale
- IPMA - Portuguese Institute for the Sea and Atmosphere, R. Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
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18
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Ricardo F, Pimentel T, Génio L, Calado R. Spatio-temporal variability of trace elements fingerprints in cockle (Cerastoderma edule) shells and its relevance for tracing geographic origin. Sci Rep 2017; 7:3475. [PMID: 28615721 PMCID: PMC5471190 DOI: 10.1038/s41598-017-03381-w] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 05/03/2017] [Indexed: 01/22/2023] Open
Abstract
Understanding spatio-temporal variability of trace elements fingerprints (TEF) in bivalve shells is paramount to determine the discrimination power of this analytical approach and secure traceability along supply chains. Spatio-temporal variability of TEF was assessed in cockle (Cerastoderma edule) shells using inductively coupled plasma-mass spectrometry (ICP-MS). Four elemental ratios (Mg/Ca, Mn/Ca, Sr/Ca and Ba/Ca) were measured from the shells of specimens originating from eight different ecosystems along the Portuguese coast, as well as from four different areas, within one of them, over two consecutive years (2013 and 2014). TEF varied significantly in the shells of bivalves originating from the eight ecosystems surveyed in the present study. Linear discriminant function analyses assigned sampled cockles to each of the eight ecosystems with an average accuracy of 90%. Elemental ratios also displayed significant differences between the two consecutive years in the four areas monitored in the same ecosystem. Overall, while TEF displayed by cockle shells can be successfully used to trace their geographic origin, a periodical verification of TEF (>6 months and <1 year) is required to control for temporal variability whenever comparing specimens originating from the same area collected more than six months apart.
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Affiliation(s)
- Fernando Ricardo
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - Tânia Pimentel
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Luciana Génio
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Ricardo Calado
- Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
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19
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Raimundo J, Ruano F, Pereira J, Mil-Homens M, Brito P, Vale C, Caetano M. Abnormal mortality of octopus after a storm water event: Accumulated lead and lead isotopes as fingerprints. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 581-582:289-296. [PMID: 28087073 DOI: 10.1016/j.scitotenv.2016.12.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/16/2016] [Accepted: 12/17/2016] [Indexed: 06/06/2023]
Abstract
Octopus vulgaris is a sedentary organism that inhabits coastal waters being exposed to anthropogenic compounds. Lead concentration in coastal environments reflects many processes and activities namely weathering, industrial and domestic discharges, and atmospheric deposition. Since lead isotopic composition is little affected by kinetic processes occurring between source and sink, its signature has been used to identify different Pb sources. After a short-term heavy rainfall, hundreds of octopus appeared dead in two Portuguese coastal areas. Histopathology and Pb levels and its stable isotopes were determined in tissues, such as digestive gland, of stranded octopus and compared to alive specimens, sediments and runoff material from the same areas. Histology results showed severe damage in stranded octopus tissues suggesting that death was probably associated to multiple organ failure linked to hypertrophy and exudates input. In addition, Pb in stranded specimens reach concentrations up to one order of magnitude above the levels reported for alive octopus. Pb isotopic signatures in stranded organisms were closer to runoff material pointing to a similar origin of Pb. In summary, the results in this study showed that a short-term runoff event might change abruptly the salinity leading to the disruption of the osmoregulation function of octopus and consequently leading to its death. The analyses of stable isotopic Pb signature in octopus tissues corroborate these results and points to a change in the Pb source due to runoff after the storm water event. Pb stable isotopes in octopus proved to be an adequate tool to confirm the cause of death and linking it to the environment conditions.
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Affiliation(s)
- J Raimundo
- IPMA - Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal; CIIMAR, Marine and Environmental Research Center, Rua dos Bragas, 289, 4050-123 Porto, Portugal.
| | - F Ruano
- IPMA - Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal
| | - J Pereira
- IPMA - Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal
| | - M Mil-Homens
- IPMA - Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal; CIIMAR, Marine and Environmental Research Center, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - P Brito
- IPMA - Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal; CIIMAR, Marine and Environmental Research Center, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - C Vale
- CIIMAR, Marine and Environmental Research Center, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - M Caetano
- IPMA - Portuguese Institute of Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 6, 1495-006 Lisbon, Portugal
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20
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Marques A, Piló D, Araújo O, Pereira F, Guilherme S, Carvalho S, Santos MA, Pacheco M, Pereira P. Propensity to metal accumulation and oxidative stress responses of two benthic species (Cerastoderma edule and Nephtys hombergii): are tolerance processes limiting their responsiveness? ECOTOXICOLOGY (LONDON, ENGLAND) 2016; 25:664-676. [PMID: 26911481 DOI: 10.1007/s10646-016-1625-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/29/2016] [Indexed: 06/05/2023]
Abstract
The chronic exposure of benthic organisms to metals in sediments can lead to the development of tolerance mechanisms, thus diminishing their responsiveness. This study aims to evaluate the accumulation profiles of V, Cr, Co, Ni, As, Cd, Pb and Hg and antioxidant system responses of two benthic organisms (Cerastoderma edule, Bivalvia; Nephtys hombergii, Polychaeta). This approach will provide clarifications about the ability of each species to signalise metal contamination. Organisms of both species were collected at the Tagus estuary, in two sites with distinct contamination degrees (ALC, slightly contaminated; BAR, highly contaminated). Accordingly, C. edule accumulated higher concentrations of As, Pb and Hg at BAR compared to ALC. However, antioxidant responses of C. edule were almost unaltered at BAR and no peroxidative damage occurred, suggesting adjustment mechanisms to the presence of metals. In contrast, N. hombergii showed a minor propensity to metal accumulation, only signalising spatial differences for As and Pb and accumulating lower concentrations of metals than C. edule. The differences in metal accumulation observed between species might be due to their distinctive foraging behaviour and/or the ability of N. hombergii to minimise the metal uptake. Despite that, the accumulation of As and Pb was on the basis of the polychaete antioxidant defences inhibition at BAR, including CAT, SOD, GR and GPx. The integrated biomarker response index (IBRv2) confirmed that N. hombergii was more affected by metal exposure than C. edule. In the light of current findings, in field-based studies, the information of C. edule as a bioindicator should be complemented by that provided by another benthic species, since tolerance mechanisms to metals can hinder a correct diagnosis of sediment contamination and of the system's health. Overall, the present study contributed to improve the lack of fundamental knowledge of two widespread and common estuarine species, providing insights of the metal accumulation profiles under a scenario of chronic contamination. Finally, this work provided useful information that can be applied in the interpretation of future environmental monitoring studies.
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Affiliation(s)
- Ana Marques
- CESAM - Center for Environmental and Marine Studies and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - David Piló
- IPMA - The Portuguese Sea and Atmosphere Institute, Avenida 5 de Outubro, 8700-305, Olhão, Portugal
- Department of Biology, Faculty of Marine and Environmental Sciences, University of Cadiz, Campus de Excelencia Internacional del Mar (CEIMAR), Avenida República Saharaui S/N Puerto Real, 11510, Puerto Real, Cadiz, Spain
| | - Olinda Araújo
- IPMA - The Portuguese Sea and Atmosphere Institute, Avenida Brasília, 1449-006, Lisbon, Portugal
| | - Fábio Pereira
- IPMA - The Portuguese Sea and Atmosphere Institute, Avenida 5 de Outubro, 8700-305, Olhão, Portugal
| | - Sofia Guilherme
- CESAM - Center for Environmental and Marine Studies and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Susana Carvalho
- IPMA - The Portuguese Sea and Atmosphere Institute, Avenida 5 de Outubro, 8700-305, Olhão, Portugal
- Biological and Environmental Sciences & Engineering Division, Red Sea Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Maria Ana Santos
- CESAM - Center for Environmental and Marine Studies and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Mário Pacheco
- CESAM - Center for Environmental and Marine Studies and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Patrícia Pereira
- CESAM - Center for Environmental and Marine Studies and Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
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Mil-Homens M, Stevens RL, Cato I, Abrantes F. Comparing spatial and temporal changes in metal trends (Cr, Ni, Pb and Zn) on the Portuguese shelf since the 1970s. ENVIRONMENTAL MONITORING AND ASSESSMENT 2014; 186:6327-6340. [PMID: 24879363 DOI: 10.1007/s10661-014-3857-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 05/21/2014] [Indexed: 06/03/2023]
Abstract
Comparison between an archive dataset, collected during the 1970s (1974-1977), and samples taken during the PALEO1 cruise (2002) enabled evaluation of large-scale and long-term spatiotemporal changes in Al, Cr, Ni, Pb and Zn contents in bulk surface sediments in four areas of the Portuguese shelf. The so-called gradient method (GM) with normalisation to Al, a proxy for terrigenous clay content, was applied. The studied areas are distributed from north to south along the western margin, with the northernmost located off shore the Ave and Douro rivers, a central one located off shore the Lis River and a southern one located off shore the Mira River. One-way ANOVA and Kruskal-Wallis tests were used to identify differences among study areas and periods of sample collection. A comparison of metal contents in 2002 samples with the Portuguese classification scheme regulation for deposition of dredged materials in coastal areas indicates good environmental quality in terms of Cr, Ni, Pb and Zn levels. Nevertheless, the GM results suggest an increase in metal loadings relative to Al from the 1970s to the 2002 samples (except for Pb). The Algarve area on the southern shelf is characterised by having high number of sites with metal level on class 2. These high values have traditionally been explained by a substantial supply of natural metals from the Guadiana, Tinto and Odiel rivers that drain areas Iberian Pyrite Belt formations. This supply has probably been magnified by present and past mining activities. For quality evaluation of marine sediments, especially when using total metal contents, this study shows the importance of considering all possible sources of metal loading. The natural grain size and composition variability have also a crucial influence on the metal content, and the combined evaluation allows a more holistic perspective.
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Affiliation(s)
- Mário Mil-Homens
- Divisão de Oceanografia Ambiental e Bioprospeção, Instituto Português do Mar e da Atmosfera, I.P., Avenida de Brasília, 1449-006, Lisboa, Portugal,
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22
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Cabrita MT. Phytoplankton community indicators of changes associated with dredging in the Tagus estuary (Portugal). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2014; 191:17-24. [PMID: 24792880 DOI: 10.1016/j.envpol.2014.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 02/21/2014] [Accepted: 04/01/2014] [Indexed: 06/03/2023]
Abstract
This work reports changes in suspended particulate matter, turbidity, dissolved Cr, Ni, Cu, Cd, Hg and Pb concentrations, and phytoplankton biomass and composition during a 5-month period dredging operation, in a trace element contaminated area of the Tagus estuary (Portugal). Phytoplankton biomass, diatom:other groups ratio, benthic:pelagic diatom ratio, Margalef's, Simpson's diversity, Shannon-Wiever's, and Warwick and Clarke's taxonomic diversity and distinctness indices, and individual taxa were investigated as indicators of dredging induced changes. Significant rise in sediment resuspension and trace element mobilisation caused by dredging influenced the community structure but not the overall biomass. Benthic diatom displacement into the water column maintained species diversity, and therefore, none of the indices highlighted community changes. Contrastingly, diatom:other groups ratio and benthic:pelagic diatom ratio were reliable indicators for the assessment of dredging induced changes. A shift in composition towards species less susceptible to trace elements was observed, disclosing some individual taxa as potential indicators.
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Affiliation(s)
- Maria Teresa Cabrita
- Portuguese Institute of Sea and Atmosphere (IPMA), Av. de Brasília, 1449-006 Lisboa, Portugal.
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23
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Mil-Homens M, Vale C, Raimundo J, Pereira P, Brito P, Caetano M. Major factors influencing the elemental composition of surface estuarine sediments: the case of 15 estuaries in Portugal. MARINE POLLUTION BULLETIN 2014; 84:135-146. [PMID: 24933166 DOI: 10.1016/j.marpolbul.2014.05.026] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 05/06/2014] [Accepted: 05/08/2014] [Indexed: 06/03/2023]
Abstract
Upper sediments (0-5 cm) were sampled in 94 sites of water bodies of the fifteen Portuguese estuaries characterized by distinct settings of climate, topography and lithology, and marked by diverse anthropogenic pressures. Confined areas recognized as highly anthropogenic impacted, as well as areas dominated by erosion or frequently dredged were not sampled. Grain size, organic carbon (Corg), Al and trace elements (As, Cd, Co, Cr, Cu, Hg, Ni, Pb and Zn) were determined. Normalisation of trace element concentrations to Al and Corg, correlations between elements and Principal Component Analysis (PCA) allowed identifying elemental associations and the relevance of grain-size, lithology and anthropogenic inputs on sediment chemical composition. Whereas grain-size is the dominant effect for the majority of the studied estuaries, the southern estuaries Mira, Arade and Guadiana are dominated by specific lithologies of their river basins, and anthropogenic effects are identified in Ave, Leça, Tagus and Sado. This study emphasizes how baseline values of trace elements in sediments may vary within and among estuarine systems.
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Affiliation(s)
- M Mil-Homens
- IPMA, Portuguese Institute of Sea and Atmosphere, Division of Environmental Oceanography and Bioprospection, Av. Brasília, 1449-006 Lisboa, Portugal; CIIMAR, Marine and Environmental Research Center, Rua dos Bragas, 289, 4050-123 Porto, Portugal.
| | - C Vale
- IPMA, Portuguese Institute of Sea and Atmosphere, Division of Environmental Oceanography and Bioprospection, Av. Brasília, 1449-006 Lisboa, Portugal; CIIMAR, Marine and Environmental Research Center, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - J Raimundo
- IPMA, Portuguese Institute of Sea and Atmosphere, Division of Environmental Oceanography and Bioprospection, Av. Brasília, 1449-006 Lisboa, Portugal; CIIMAR, Marine and Environmental Research Center, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - P Pereira
- IPMA, Portuguese Institute of Sea and Atmosphere, Division of Environmental Oceanography and Bioprospection, Av. Brasília, 1449-006 Lisboa, Portugal
| | - P Brito
- IPMA, Portuguese Institute of Sea and Atmosphere, Division of Environmental Oceanography and Bioprospection, Av. Brasília, 1449-006 Lisboa, Portugal
| | - M Caetano
- IPMA, Portuguese Institute of Sea and Atmosphere, Division of Environmental Oceanography and Bioprospection, Av. Brasília, 1449-006 Lisboa, Portugal; CIIMAR, Marine and Environmental Research Center, Rua dos Bragas, 289, 4050-123 Porto, Portugal
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24
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Santos I, Diniz MS, Carvalho ML, Santos JP. Assessment of essential elements and heavy metals content on Mytilus galloprovincialis from river Tagus estuary. Biol Trace Elem Res 2014; 159:233-40. [PMID: 24763710 DOI: 10.1007/s12011-014-9974-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 04/08/2014] [Indexed: 10/25/2022]
Abstract
Trace elemental content was analysed in edible tissues of Mytilus galloprovincialis collected in five different sampling areas near the mouth of river Tagus estuary in Lisbon. The concentrations of essential elements (S, K, Ca, Fe, Cu, Zn, As, Br and Sr) were determined by energy-dispersive X-ray fluorescence (EDXRF) spectrometry, while toxic elements (Cr, Cd, Hg, Se and Pb) were measured by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The results show that the essential elements K and S are present at the highest concentrations in all the studied samples reaching 2,920 and 4,520 μg g(-1) (fresh weight), respectively. The highest levels of heavy metals found were in two areas close to the city for Pb and Cd, but below the maximum allowed values.
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Affiliation(s)
- I Santos
- CFA, Departamento de Física, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
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25
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Cabrita MT, Raimundo J, Pereira P, Vale C. Immobilised Phaeodactylum tricornutum as biomonitor of trace element availability in the water column during dredging. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:3572-3581. [PMID: 24271735 DOI: 10.1007/s11356-013-2362-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Accepted: 11/11/2013] [Indexed: 06/02/2023]
Abstract
This work reports changes of Cr, Cu, Zn, Cd, Hg and Pb concentrations in the dissolved fraction, suspended particulate matter and immobilised Phaeodactylum tricornutum Bohlin (Bacillariophyceae), as well as of microalgae specific growth rates, during a 5-month period dredging operation in a contaminated area of the Tagus estuary, Portugal. Trace element concentrations showed broad variations in the dissolved fraction and suspended particulate matter, presumably reflecting rapid exchanges of redox-sensitive elements between water and particles, in conjunction with the dilution effect caused by the tidal excursion. Immobilised cells exposed to dredging environmental conditions showed significantly higher concentrations of Cr, Cu, Zn, Cd, Hg and Pb than under no dredging conditions. Concomitantly, specific cell growth was significantly lower, suggesting that elements released with dredging affect the microalgae physiology. The results obtained in this in situ work imply that the dissolved fraction and the suspended particulate matter are relatively ineffective indicators of the trace element enhancement during dredging and pointed out immobilised P. tricornutum as a reliable and efficient biomonitoring tool for the assessment of trace element remobilisation.
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Affiliation(s)
- Maria Teresa Cabrita
- Portuguese Institute of Sea and Atmosphere (IPMA), Av. Brasília, 1449-006, Lisbon, Portugal,
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26
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Figueiredo NLL, Canário J, Duarte A, Serralheiro ML, Carvalho C. Isolation and characterization of mercury-resistant bacteria from sediments of Tagus Estuary (Portugal): implications for environmental and human health risk assessment. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2014; 77:155-168. [PMID: 24555656 DOI: 10.1080/15287394.2014.867204] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Mercury (Hg) contamination of aquatic systems has been recognized as a global and serious problem affecting both human and environmental health. In the aquatic ecosystems, mercurial compounds are microbiologically transformed with methylation responsible for generation of methylmercury (MeHg) and subsequent biomagnification in food chain, consequently increasing the risk of poisoning for humans and wildlife. High levels of Hg, especially MeHg, are known to exist in Tagus Estuary as a result of past industrial activities. The aim of this study was to isolate and characterize Hg-resistant bacteria from Tagus Estuary. Mercury-resistant (Hg-R) bacteria were isolated from sediments of two hotspots (Barreiro and North Channel) and one reserve area (Alcochete). Mercury contamination in these areas was examined and bacterial susceptibility to Hg compounds evaluated by determination of minimal inhibitory concentrations (MIC). The isolates characterization was based on morphological observation and biochemical testing. Bacteria characteristics, distribution, and Hg resistance levels were compared with metal levels. Barreiro and North Channel were highly contaminated with Hg, containing 126 and 18 μg/g total Hg, respectively, and in Alcochete, contamination was lower at 0.87 μg/g total Hg. Among the isolates there were aerobic and anaerobic bacteria, namely, sulfate-reducing bacteria, and Hg resistance levels ranged from 0.16 to 140 μg/ml for Hg(2+) and from 0.02 to 50.1 μg/ml for MeHg. The distribution of these bacteria and the resistance levels were consistent with Hg contamination along the depth of the sediments. Overall, results show the importance of the characterization of Tagus Estuary bacteria for ecological and human health risk assessment.
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MESH Headings
- Bacteria, Aerobic/drug effects
- Bacteria, Aerobic/isolation & purification
- Bacteria, Anaerobic/drug effects
- Bacteria, Anaerobic/isolation & purification
- Chromatography, Gas
- Environmental Health
- Environmental Monitoring
- Estuaries
- Geologic Sediments/chemistry
- Geologic Sediments/microbiology
- Humans
- Mercury/analysis
- Mercury/pharmacology
- Methylmercury Compounds/analysis
- Methylmercury Compounds/pharmacology
- Microbial Sensitivity Tests
- Portugal
- Risk Assessment
- Spectrophotometry, Atomic
- Water Pollutants, Chemical/analysis
- Water Pollutants, Chemical/pharmacology
- Water Pollution, Chemical/adverse effects
- Water Pollution, Chemical/analysis
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Affiliation(s)
- Neusa L L Figueiredo
- a Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia , Universidade de Lisboa Av. Prof. Gama Pinto , Lisboa , 1649-003 , Portugal
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27
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Pereira P, Raimundo J, Canário J, Almeida A, Pacheco M. Looking at the aquatic contamination through fish eyes--a faithful picture based on metals burden. MARINE POLLUTION BULLETIN 2013; 77:375-379. [PMID: 24449925 DOI: 10.1016/j.marpolbul.2013.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This study describes for the first time metal accumulation in the eyes of native golden grey mullet (Liza aurata) coupled with water/sediment quality assessment. Sampling was performed in the Tagus estuary (Portugal) where a confined area (Barreiro) is severely contaminated by metal/loids. Levels of As, Cu, Pb, Hg and Cd in sediments from Barreiro were one order of magnitude higher than those from the reference site. Data on water column pointed also to a higher availability of Cu, Pb, Cd and Hg (including MeHg) at Barreiro. Accordingly, fish eyes accumulated higher levels of metal/loids at Barreiro than at the reference site. These findings support the use of fish eyes as a target organ in environmental health assessment since they reflect sediment and water contamination. It points also to the importance of evaluate eye changes at structural/functional levels in order to examine in what extent accumulated metals could compromise this perceptive system.
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28
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Conde A, Novais JM, Domínguez J. Intertidal macrofauna and environmental stress at a riverine-marine boundary. MARINE ENVIRONMENTAL RESEARCH 2013; 92:1-9. [PMID: 23973121 DOI: 10.1016/j.marenvres.2013.07.002] [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: 05/20/2013] [Revised: 07/10/2013] [Accepted: 07/14/2013] [Indexed: 06/02/2023]
Abstract
A field experiment was carried out to test the effect of pore water salinity on the macrobenthic assemblages in an estuarine region of the Tagus estuary (Portugal) subjected to wide fluctuations in salinity. The conditions at the experimental site ranged from freshwater (minimum salinity 0.2) to mesohaline (maximum salinity 15.3). The experimental site was affected by an unexpected deposition of fluid mud during summer. Redundancy Analysis discriminated the experimental treatments along the first canonical ordination axis. The analysis also revealed an experimental gradient of increasing environmental stress, in which the minimal presence of organisms corresponded to treatments representing a high level of environmental stress. Sediment dynamics and saline fluctuations were the major factors that, together, determined the low macrofaunal abundance and species diversity at the experimental site. The most abundant macrofaunal species in this harsh environment were the polychaetes Hediste diversicolor and Streblospio shrubsolii.
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Affiliation(s)
- Anxo Conde
- IBB-Institute for Biotechnology and Bioengineering, Center for Biological and Chemical Engineering, Instituto Superior Técnico (IST), Lisbon 1049-001, Portugal; Departamento de Ecoloxía e Bioloxía Animal, Universidade de Vigo, Vigo E-36310, Spain.
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29
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Mil-Homens M, Caetano M, Costa AM, Lebreiro S, Richter T, de Stigter H, Trancoso MA, Brito P. Temporal evolution of lead isotope ratios in sediments of the Central Portuguese Margin: a fingerprint of human activities. MARINE POLLUTION BULLETIN 2013; 74:274-284. [PMID: 23871578 DOI: 10.1016/j.marpolbul.2013.06.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 06/19/2013] [Accepted: 06/23/2013] [Indexed: 06/02/2023]
Abstract
Stable Pb isotope ratios ((206)Pb/(207)Pb, (208)Pb/(206)Pb), (210)Pb, Pb, Al, Ca, Fe, Mn and Si concentrations were measured in 7 sediment cores from the west coast of the Iberian Peninsula to assess the Pb contamination throughout the last 200 years. Independently of their locations, all cores are characterized by increasing Pb/Al rends not related to grain-size changes. Conversely, decreasing trends of (206)Pb/(207)Pb were found towards the present. This tendency suggest a change in Pb sources reflecting an increased proportion derived from anthropogenic activities. The highest anthropogenic Pb inventories for sediments younger than 1950s were found in the two shallowest cores of Cascais and Lisboa submarine canyons, reflecting the proximity of the Tagus estuary. Lead isotope signatures also help demonstrate that sediments contaminated with Pb are not constrained to estuarine-coastal areas and upper parts of submarine canyons, but are also to transferred to a lesser extent to deeper parts of the Portuguese Margin.
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Affiliation(s)
- Mário Mil-Homens
- Instituto Português do Mar e da Atmosfera, I.P., Divisão de Oceanografia Ambiental e Bioprospecção, Av. Brasília, 1449-006 Lisboa, Portugal.
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30
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Pereira A, Santos A, Tacão M, Alves A, Henriques I, Correia A. Genetic diversity and antimicrobial resistance of Escherichia coli from Tagus estuary (Portugal). THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 461-462:65-71. [PMID: 23714246 DOI: 10.1016/j.scitotenv.2013.04.067] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Revised: 04/23/2013] [Accepted: 04/23/2013] [Indexed: 06/02/2023]
Abstract
Fecal pollution of surface waters is a current world-wide public health concern and may contribute for the dissemination of antibiotic resistance. The Tagus estuary located in the south of Portugal is one of the largest wetlands in the west coast of Europe. In this study, water samples were collected from seven stations with different anthropic pressures along the estuary and evaluated for water quality indicator bacteria. Escherichia coli isolates (n=350) were typed by REP-PCR. Representatives of each REP profile (n=220) were evaluated phenotypically for resistance to 17 antibiotics and characterized in terms of phylogenetic group. Resistant isolates were screened for the presence of antibiotic resistance genes (tet(A), tet(B), sul1, sul2, qnrA, qnrB, qnrS, aacA4-cr, bla(TEM), bla(SHV), bla(CTX-M), bla(CMY-like), bla(IMP), bla(VIM)) and integrase genes (intI1 and intI2). The highest antibiotic resistance prevalence was observed for streptomycin and tetracycline followed by β-lactams and sulphonamides. Among E. coli isolates, 65.16% were resistant to at least one of the 17 antibiotics tested and approximately 19% were multiresistant. In our E. coli population phylo-groups A and D were predominant and characterized by higher prevalence of the antibiotic resistance. intI1 and intI2 genes were found in 12% of the isolates with prevalence of class 1 integrons. A strong correlation between the prevalence of integrons and multiresistance was observed. Differences in terms of antibiotic resistance between phylogenetic groups and between sampling sites were statistically significant. The results demonstrate a high prevalence of antibiotic resistance among E. coli circulating in the Tagus estuary with emphasis on the occurrence of resistance to last-resort antibiotics and on the high incidence of multiresistance.
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Affiliation(s)
- Anabela Pereira
- Department of Biology and CESAM, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
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31
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Cabrita MT, Raimundo J, Pereira P, Vale C. Optimizing alginate beads for the immobilisation of Phaeodactylum tricornutum in estuarine waters. MARINE ENVIRONMENTAL RESEARCH 2013; 87-88:37-43. [PMID: 23587416 DOI: 10.1016/j.marenvres.2013.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 03/18/2013] [Accepted: 03/22/2013] [Indexed: 06/02/2023]
Abstract
This study addresses the influence of calcium as hardening agent, on alginate gel bead stability and suitability for the growth of Phaeodactylum tricornutum Bohlin (Bacillariophyceae) in estuarine waters. Alginate beads produced with 1, 2, 4, 5 and 6% of CaCl2 solutions were investigated for stability and suitability for growth of P. tricornutum cells, under mean salinity 27, at 220 and 440 rpm stirring laboratory conditions, and in devices placed under in situ estuarine conditions. Gel stability and suitability for cell growth were evaluated through bead diameter, bead disruption, dissolution and loss of spherical shape, cell viability and specific growth rates. Beads gelled with 5% CaCl2 were found the most suitable to sustain gel stability and cell growth in the estuarine waters. These beads were surveyed during dredging operations in the Tagus estuary, both in situ and in estuarine water under laboratory conditions, showing significantly lowered growth rates possibly due to Mn, Co and As accumulated in the cells. Results confirmed that the monitoring tool presented is reliable and effective for the assessment of anthropogenic impacts.
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32
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Martins M, Costa PM, Raimundo J, Vale C, Ferreira AM, Costa MH. Impact of remobilized contaminants in Mytilus edulis during dredging operations in a harbour area: bioaccumulation and biomarker responses. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2012; 85:96-103. [PMID: 22938960 DOI: 10.1016/j.ecoenv.2012.08.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Revised: 07/16/2012] [Accepted: 08/02/2012] [Indexed: 06/01/2023]
Abstract
Dredging operations in harbours are recurrent to maintain accessibility and navigational depths. One of the main environmental risks of these operations is the remobilization of contaminants trapped in the sediments, rendering them more bioavailable to the biota. However, regulatory policies regarding the contamination risk of dredging chiefly apply to the disposal of dredged materials rather than the direct impact of the procedure itself. In order to assess the ecotoxicological risk of harbour dredging operations in a polluted estuary (the Tagus, W Portugal), the present study compared bioaccumulation and biomarker responses in field-deployed mussels before and after the beginning of operations, complemented by sediment characterization and risk analysis based on standardized sediment quality guidelines. The results revealed a very significant increase in genotoxicity and oxidative stress from the beginning of dredging onwards, which was accompanied by increased bioaccumulation of toxicants, especially polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs). Overall, the results indicate the importance of surveying the direct impacts of these procedures on local contamination, especially considering these sediments had been previously classified as "trace contaminated", according to normative guidelines, and therefore safe for disposal. This study shows the importance of obtaining both chemical and biological data in standard monitoring procedures and that the remobilization of contaminants by dredging operations may be grossly underestimated, which calls for caution when assessing the impact of these activities even in low to moderately polluted areas.
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Affiliation(s)
- Marta Martins
- IMAR-Instituto do Mar, Departamento de Ciências e Engenharia do Ambiente, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.
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33
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Duarte B, Caçador I. Particulate metal distribution in Tagus estuary (Portugal) during a flood episode. MARINE POLLUTION BULLETIN 2012; 64:2109-2116. [PMID: 22858011 DOI: 10.1016/j.marpolbul.2012.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 06/26/2012] [Accepted: 07/07/2012] [Indexed: 06/01/2023]
Abstract
Particulate metal concentrations were assessed before, during and after a flood episode in the Tagus estuary. Particulate metal concentrations showed a decrease during the flood period and very similar values in the months before and after the flood event. Before this period, sampling station characteristics were verified to be homogenous during the peak of the flooding event, as all of the sampling stations assumed very specific characteristics. One of the main consequences from the flood, concurrent with a decrease in particulate metal concentrations, was the high input of SPM into the estuarine area. This finding indicates higher levels of heavy metals in fine-sized particles at low SPM concentration than those present in coarser particles at high SPM levels. These periodic flood events can be considered as estuarine contamination masks and should be interpreted as periods of dilution in heavy metal contamination rather than as an estuarine cleansing process.
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Affiliation(s)
- B Duarte
- Center of Oceanography of the Faculty of Sciences, University of Lisbon, Campo Grande, 1749-016 Lisbon, Portugal.
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34
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Raimundo J, Pereira P, Caetano M, Cabrita MT, Vale C. Decrease of Zn, Cd and Pb concentrations in marine fish species over a decade as response to reduction of anthropogenic inputs: the example of Tagus estuary. MARINE POLLUTION BULLETIN 2011; 62:2854-2858. [PMID: 21986541 DOI: 10.1016/j.marpolbul.2011.09.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 09/13/2011] [Accepted: 09/18/2011] [Indexed: 05/31/2023]
Abstract
Concentrations of Zn, Cd and Pb were measured in muscle of pelagic, demersal and benthic fishes, captured in the coastal area adjoining the Tagus estuary (Portugal), in 1998 and 2010. Additionally, Pb and Cd were determined in estuarine waters, showing a pronounced decrease between 1999 and 2010. Accordingly, specimens captured in 2010 presented significantly lower metal concentrations than individuals caught in 1998. Reductions were more evident for Pb (reduction of 59-99%) than for Cd (14-93%) and Zn (17-54%). Values in pelagic and demersal species exhibited higher reductions than in benthic species. Decrease of metal concentrations in fish appears thus to reflect the improvement of estuarine water quality as anthropogenic sources have been reduced or eliminated. Furthermore, it emphasises the usefulness of the descriptor "Contaminants in Fish" to assess the efficiency of measures to achieve a good environmental status, in the scope of the Marine Strategy Framework Directive.
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Affiliation(s)
- Joana Raimundo
- IPIMAR - National Institute of Biological Resources, Av. Brasília, 1449-006 Lisbon, Portugal.
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35
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Fonseca VF, França S, Vasconcelos RP, Serafim A, Company R, Lopes B, Bebianno MJ, Cabral HN. Short-term variability of multiple biomarker response in fish from estuaries: Influence of environmental dynamics. MARINE ENVIRONMENTAL RESEARCH 2011; 72:172-178. [PMID: 21868087 DOI: 10.1016/j.marenvres.2011.08.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 07/31/2011] [Accepted: 08/05/2011] [Indexed: 05/31/2023]
Abstract
Short-term variability in biomarker responses and the effects of temperature and salinity variation were explored in three fish species (Dicentrarchus labrax, Solea senegalensis and Pomatoschistus microps) occurring in the Tejo estuary. Short-term variability in biomarkers was observed in all species although no pattern was discerned over time (days to weeks). Antioxidant enzymes activity (superoxide dismutase (SOD) and catalase (CAT)) showed low temporal variability, indicating some constancy or baseline level in antioxidant responses. Only CAT activity in S. senegalensis was correlated with temperature, suggesting that exposure to contaminants triggered antioxidant acclimation. Higher short-term variability was observed in xenobiotic biotransformation enzymes activity (phase I ethoxyresorufin O-deethylase (EROD) and phase II glutathione S-transferase (GST)). Yet a significant correlation between EROD and GST in D. labrax and S. senegalensis suggests a concomitant response to contaminants. Moreover the lack of correlation between xenobiotic biotransformation enzymes and abiotic variables on concordant time scales, suggest a high specificity of these biomarkers to chemical exposure, rather than high variability due to environmental dynamics.
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Affiliation(s)
- V F Fonseca
- Centro de Oceanografia, Faculdade de Ciências da, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
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Fonseca VF, França S, Serafim A, Company R, Lopes B, Bebianno MJ, Cabral HN. Multi-biomarker responses to estuarine habitat contamination in three fish species: Dicentrarchus labrax, Solea senegalensis and Pomatoschistus microps. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2011; 102:216-27. [PMID: 21356184 DOI: 10.1016/j.aquatox.2011.01.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Revised: 01/04/2011] [Accepted: 01/28/2011] [Indexed: 05/11/2023]
Abstract
Several biomarker responses were determined in three fish species, Dicentrarchus labrax, Solea senegalensis and Pomatoschistus microps, from two estuaries of the Portuguese coast, Ria de Aveiro and Tejo. Both estuaries have significant anthropogenic influences from multiple sources (industrial, agricultural and shipping activities), which was evident from sediment chemical characterization concerning metal (copper, zinc, nickel, lead and chromium) and polycyclic aromatic hydrocarbon (PAH) concentrations. Spatial variability in fish responses was observed across species for most biomarkers of exposure [the activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), ethoxyresorufin O-deethylase (EROD) and glutathione S-transferase (GST), and metallothionein concentrations (MT)] and effect biomarkers [lipid peroxidation (LPO), RNA to DNA ratio (R:D), protein and lipid content]. In general, the interspecific differences in biomarker responses were greater than the spatial differences, due to differences in the behavior and habitat use of the species. Nevertheless, similarities were also observed considering both chemical load and biomarker responses. In highly polluted sites fish showed in general a significant antioxidant enzyme induction, associated with decreased R:D values, while fish from the least impacted site had little enzyme induction and better condition indices (high R:D and low LPO values). EROD activity was also higher for all species in the Tejo than Ria de Aveiro estuary, despite the generally higher total PAH measured in Ria de Aveiro, most likely due to a higher proportion of 4 and 6-ring PAHs, considered more toxic than low molecular weight PAHs, in the Tejo. In conclusion, this multi-biomarker approach considering multiple species provided improved understanding of the diverse responses and effects of exposure to contaminants and the effective risk it poses for different fish species.
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Affiliation(s)
- V F Fonseca
- Centro de Oceanografia, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, Portugal.
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Cobelo-García A, Neira P, Mil-Homens M, Caetano M. Evaluation of the contamination of platinum in estuarine and coastal sediments (Tagus Estuary and Prodelta, Portugal). MARINE POLLUTION BULLETIN 2011; 62:646-50. [PMID: 21256526 DOI: 10.1016/j.marpolbul.2010.12.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2010] [Revised: 12/13/2010] [Accepted: 12/18/2010] [Indexed: 05/15/2023]
Abstract
Platinum contamination in estuarine and coastal sediments has been evaluated in three cores collected from the Tagus Estuary and Prodelta shelf sediments. Elevated concentrations, up to 25-fold enrichment compared to background values, were found in the upper layers of the estuarine sediments. The degree of Pt enrichment in the estuarine sediments varied depending on the proximity to vehicular traffic sources, with a maximum concentration of 9.5 ng g(-1). A considerable decrease of Pt concentrations with depth indicated the absence of significant contamination before the introduction of catalytic converters in automobiles. Platinum distribution in the Tagus Prodelta shelf sediment core showed no surface enrichment; instead a sub-surface maximum at the base of the mixed layer suggested the possibility of post-depositional mobility, thereby blurring the traffic-borne contamination signature in coastal sediments.
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Affiliation(s)
- Antonio Cobelo-García
- Grupo de Bioxeoquímica Mariña, Instituto de Investigacións Mariñas (CSIC), 36208 Vigo, Spain.
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