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Dr. Wanderley Bastos
Universidade Federal de Rondônia - Brazil

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0 Ecotoxicology
0 Heavy Metals
0 Mercury
0 environmental biogeochemistry
0 Brazilian Amazon

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Brazilian Amazon

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Journal article
Published: 25 June 2021 in Environmental Research
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In the Amazon rainforest, methylmercury (MeHg) is easily biomagnified and bio-accumulated in the aquatic food chain. This unique biome has been studied for occupational and environmental issues related to human health and contamination through fish consumption; however, wildlife studies have not yet addressed fish-eating birds. Different species of birds categorized by foraging strategies and life-stages were studied in the Madeira River Basin (Western Amazon rainforest). Feather and tissue (muscle, liver, kidneys, lungs, heart, brain, and blood) samples were collected opportunistically from six bird species feeding on fish and aquatic fauna and a scavenger (a saprophagous species) during the low-water season (July 2017). All collected samples were analyzed for total Hg (THg); methyl-Hg (MeHg) was determined only in feathers. The mean THg concentrations in feathers (dw) were as follows: Ardea cocoi (4.05 μg g−1, n = 51) > Egretta thulla (3.94 μg g−1, n = 5) > Ardea alba (3.80 μg g−1, n = 61) > Anhinga anhinga (3.69 μg g−1, n = 8) > Nannopterum brasilianus (3.07 μg g−1, n = 10). The scavenger Coragyps atratus showed mean THg in feathers (9.93 μg g−1, n = 30) to be significantly higher than in fish-eating birds. Across species, THg levels in feathers correlated significantly with THgmuscle (p = 0.022) and THgbrain (p = 0.002). THg concentrations varied in tissues (feather > liver > kidneys > lungs > heart > muscle > blood > brain). The Hgbrain:Hgfeather, Hgbrain:Hgmuscle, and Hgbrain:Hgblood ratios were 0.031, 0.503 and 0.516, respectively. The mean [MeHg:THg] ratio in feathers from aquatic birds varied between species from 14 to 74% with a mean of 38%. Scavenger birds that forage in the terrestrial Amazonian environments concentrate more THg than species that forage in the aquatic environment. None of the aquatic species showed THg concentration in internal organs that were above threshold for risk of Hg toxicity; additionally, they are not listed in the categories of threat by the International Union for Conservation of Nature (IUCN).

ACS Style

Angela N. Dias dos Santos; Maria Cristina N. Do N. Recktenvald; Dario P. de Carvalho; Emília L. Bortoleto Puerta; Izidro F. de Sousa-Filho; José G. Dórea; Wanderley R. Bastos. Mercury in birds (aquatic and scavenger) from the Western Amazon. Environmental Research 2021, 201, 111574 .

AMA Style

Angela N. Dias dos Santos, Maria Cristina N. Do N. Recktenvald, Dario P. de Carvalho, Emília L. Bortoleto Puerta, Izidro F. de Sousa-Filho, José G. Dórea, Wanderley R. Bastos. Mercury in birds (aquatic and scavenger) from the Western Amazon. Environmental Research. 2021; 201 ():111574.

Chicago/Turabian Style

Angela N. Dias dos Santos; Maria Cristina N. Do N. Recktenvald; Dario P. de Carvalho; Emília L. Bortoleto Puerta; Izidro F. de Sousa-Filho; José G. Dórea; Wanderley R. Bastos. 2021. "Mercury in birds (aquatic and scavenger) from the Western Amazon." Environmental Research 201, no. : 111574.

Research article
Published: 11 June 2021 in Food Additives & Contaminants: Part B
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Total mercury (T-Hg) was determined in fish and wild animal meat consumed in indigenous villages in the Brazilian Amazon region, where there is no history of gold mining. The analyses were performed in an atomic absorption spectrophotometer by generation of cold vapour. Regardless of the dietary habit, 42.0% of the fish had levels of T-Hg higher than the values considered as safe for human health by the World Health Organisation. Exposure to mercury in the villages was higher due to the consumption of fish compared to the consumption of meat of wild animals. Carnivorous species showed a higher concentration of T-Hg, both in fish and in wild animals. It is preferred to consume meat from fish and non-predatory wild animals, which can reduce the risk of diseases resulting from high concentrations of mercury in the body of the studied indigenous people.

ACS Style

Débora Francielly de Oliveira; Bruno Soares de Castro; Maria Cristina Nery Do Nascimento Recktenvald; Walkimar Aleixo Da Costa Júnior; Fábio Ximenes da Silva; Cristiano Lucas De Menezes Alves; Josiel Dimas Froehlich; Wanderley Rodrigues Bastos; Ari Miguel Teixeira Ott. Mercury in wild animals and fish and health risk for indigenous Amazonians. Food Additives & Contaminants: Part B 2021, 14, 161 -169.

AMA Style

Débora Francielly de Oliveira, Bruno Soares de Castro, Maria Cristina Nery Do Nascimento Recktenvald, Walkimar Aleixo Da Costa Júnior, Fábio Ximenes da Silva, Cristiano Lucas De Menezes Alves, Josiel Dimas Froehlich, Wanderley Rodrigues Bastos, Ari Miguel Teixeira Ott. Mercury in wild animals and fish and health risk for indigenous Amazonians. Food Additives & Contaminants: Part B. 2021; 14 (3):161-169.

Chicago/Turabian Style

Débora Francielly de Oliveira; Bruno Soares de Castro; Maria Cristina Nery Do Nascimento Recktenvald; Walkimar Aleixo Da Costa Júnior; Fábio Ximenes da Silva; Cristiano Lucas De Menezes Alves; Josiel Dimas Froehlich; Wanderley Rodrigues Bastos; Ari Miguel Teixeira Ott. 2021. "Mercury in wild animals and fish and health risk for indigenous Amazonians." Food Additives & Contaminants: Part B 14, no. 3: 161-169.

Journal article
Published: 09 May 2021 in Journal of Trace Elements in Medicine and Biology
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The Madeira River (Amazon Basin) has been impacted by activities related to artisanal and small-scale gold mining (ASGM), deforestation and burning (for timber, agriculture, and hydroelectric dam projects). All these activities contribute to environmental mercury (Hg) release and cycling into the Amazon ecosystem and thus to changing lifestyles. We assessed exposure to total and MeHg in two small riverine communities of the Madeira River (Amazon): Lago Puruzinho (LP, n = 26 families) and São Sebastião do Tapurú (SST, n = 31 families). Samples of human hair (n = 137), blood (n = 39), and feces (n = 41) were collected from adults and children (0–15 years of age). In women of childbearing age from LP village, the mean blood total-Hg (THg) (45.54 ± 24.76 μg.L−1) and MeHg (10.79 ± 4.36 μg.L−1) concentrations were significantly (p = 0.0024; p < 0.0001, respectively) higher than in women from SST village (THg: 25.32 ± 16.75 μg.L−1; MeHg: 2.32 ± 1.56 μg.L−1) village; the trend in hair-Hg persisted but was statistically significant (p < 0.0145) only for THg (LP, 11.34 ± 5.03 μg. g−1; SST, 7.97 ± 3.51 μg. g−1). In women, the median hair:blood ratio of total Hg was 269. In children, the mean hair THg concentrations were 6.07 ± 3.60 μg. g−1 and 6.47 ± 4.16 μg. g−1 in LP and SST; thus, not significantly different (p = 0.8006). There was a significant association (p < 0.001) between hair-Hg concentrations of mothers and their respective children. The excretion of Hg in feces of women (0.52 μg. g−1 dw) was not significantly different from children (0.49 μg. g−1 dw). The only statistically significant correlation between Hg in feces and in hair was found in children, (n = 16, rs = 0.38, p = 0.005). Significant relationship was seen between the levels of THg in blood and hair of women from LP and SST. Based on hair-Hg concentrations, fish consumption rate ranged from 94.5 to 212.3 g.day−1. Women and children excrete THg in feces in comparable concentrations. However, the mean fish consumption rate and blood MeHg are higher in the most remote villagers. Mother`s hair-Hg concentration is a good predictor of children’s hair-Hg.

ACS Style

Vanessa A. Mendes; Dario P. de Carvalho; Ronaldo de Almeida; Maria Cristina N. Do N. Recktenvald; Olakson P. Pedrosa; Izidro F. de Sousa-Filho; José G. Dórea; Wanderley R. Bastos. Mercury in blood, hair, and feces from subsistence fish-eating riverines of the Madeira River Basin (Western Amazon). Journal of Trace Elements in Medicine and Biology 2021, 67, 126773 .

AMA Style

Vanessa A. Mendes, Dario P. de Carvalho, Ronaldo de Almeida, Maria Cristina N. Do N. Recktenvald, Olakson P. Pedrosa, Izidro F. de Sousa-Filho, José G. Dórea, Wanderley R. Bastos. Mercury in blood, hair, and feces from subsistence fish-eating riverines of the Madeira River Basin (Western Amazon). Journal of Trace Elements in Medicine and Biology. 2021; 67 ():126773.

Chicago/Turabian Style

Vanessa A. Mendes; Dario P. de Carvalho; Ronaldo de Almeida; Maria Cristina N. Do N. Recktenvald; Olakson P. Pedrosa; Izidro F. de Sousa-Filho; José G. Dórea; Wanderley R. Bastos. 2021. "Mercury in blood, hair, and feces from subsistence fish-eating riverines of the Madeira River Basin (Western Amazon)." Journal of Trace Elements in Medicine and Biology 67, no. : 126773.

Article
Published: 28 April 2021 in Current Microbiology
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In the Amazon, the leaching from soil left unprotected by deforestation increases the entry of iron, among other elements, in aquatic ecosystems, which can cause cyanobacterial blooms. This study aimed to investigate the physiological response of a strain of Microcystis panniformis to iron variation. The strain was isolated from a reservoir located in the Western Amazon and produces microcystin-LR. After a period of iron deprivation, the cultures were submitted to three conditions: control (223 μgFe.L−1), treatment with 23 μgFe.L−1, and absence of iron. At regular intervals for eight days, the cell density, levels of chlorophyll a and microcystins were determined. On the second and fourth day, transcription of genes responsive to iron limitation was quantified. Starting on the fourth day of the experiment, the different iron concentrations affected growth, and on the eighth day in the iron-free condition cell density was 90% lower than in control. Chlorophyll cell quota in 23 μgFe.L−1 and control presented similar values, while without iron the cells became chlorotic as of the fourth day Toxin concentration in cells grow in 0 μgFe.L−1 in relation to the control. Higher transcription levels of the feo and fut genes were observed in the 0 μgFe.L−1 and 23 μgFe.L−1 treatments, indicating that the cells were activating high-affinity capture systems to reestablish an adequate concentration of intracellular iron. The increasing deforestation in the Jamari River Basin (Amazon region), can contribute to the occurrence of toxic cyanobacterial blooms due to the greater entrance of iron in water bodies.

ACS Style

Elisabete Lourdes Do Nascimento; Priscila Rodrigues Koschek; Maria Elisângela Venâncio dos Santos; Ana Beatriz Furlanetto Pacheco; Andreia Maria Da Anunciação Gomes; Cristina Maria Magalhães de Souza; Wanderley Rodrigues Bastos; Sandra Maria Feliciano De Oliveira Azevedo. Influence of Iron on Physiological Parameters and Intracellular Microcystin in Microcystis Panniformis Strain Isolated from a Reservoir in the Amazon. Current Microbiology 2021, 1 -10.

AMA Style

Elisabete Lourdes Do Nascimento, Priscila Rodrigues Koschek, Maria Elisângela Venâncio dos Santos, Ana Beatriz Furlanetto Pacheco, Andreia Maria Da Anunciação Gomes, Cristina Maria Magalhães de Souza, Wanderley Rodrigues Bastos, Sandra Maria Feliciano De Oliveira Azevedo. Influence of Iron on Physiological Parameters and Intracellular Microcystin in Microcystis Panniformis Strain Isolated from a Reservoir in the Amazon. Current Microbiology. 2021; ():1-10.

Chicago/Turabian Style

Elisabete Lourdes Do Nascimento; Priscila Rodrigues Koschek; Maria Elisângela Venâncio dos Santos; Ana Beatriz Furlanetto Pacheco; Andreia Maria Da Anunciação Gomes; Cristina Maria Magalhães de Souza; Wanderley Rodrigues Bastos; Sandra Maria Feliciano De Oliveira Azevedo. 2021. "Influence of Iron on Physiological Parameters and Intracellular Microcystin in Microcystis Panniformis Strain Isolated from a Reservoir in the Amazon." Current Microbiology , no. : 1-10.

Research article
Published: 16 April 2021 in Environmental Science and Pollution Research
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In the Amazon, mercury (Hg) contamination comes from ASGM operations along with soil remobilization processes associated with deforestation. The objective of this study was to evaluate the exposure to methylmercury (MeHg) and total mercury (THg) in 88 samples of skin and blubber tissue obtained from live captured river dolphins (Inia boliviensis, Inia geoffrensis, and Inia spp.) in the Madeira River Basin. THg and MeHg measurements were performed by CV-AAS and GC-AFS, respectively. We also calculated the daily intake rate (DIR) of THg (wet weight) by Inia spp. THg levels in blubber tissue of adult river dolphins (Inia spp.) ranged from 0.015 to 3.804 mg kg−1, while MeHg concentrations in blubber tissue varied from 0.04 to 2.65 mg kg−1 and in skin tissue from 0.09 to 0.66 mg kg−1. There were no significant differences in MeHg concentration in blubber (p = 0.616) and skin (p = 0.498) tissue samples between adult males and females in the different sampling locations. The adult animals showed differences in THg and MeHg concentrations significantly higher than in the calves. The estimate of the DIR of the genus Inia ranged from 1.17 to 12.35 μg kg−1 day−1 (bw), from the consumption of fish species with herbivorous to piscivorous habits, respectively. More biological and ecological data, such as the precise determination of age, mediated length, weight, and diet of river dolphins, are necessary to verify the Hg biomagnification. However, our data indicate that bioaccumulation is an active process in the dolphins of the Madeira River Basin.

ACS Style

Melissa S. Barbosa; Dario P. Carvalho; Waleska Gravena; Ronaldo de Almeida; Marília H. Mussy; Eduardo A. Sousa; Igor B. B. Holanda; Izidro F. de Sousa-Filho; Wanderley R. Bastos. Total mercury and methylmercury in river dolphins (Cetacea: Iniidae: Inia spp.) in the Madeira River Basin, Western Amazon. Environmental Science and Pollution Research 2021, 28, 45121 -45133.

AMA Style

Melissa S. Barbosa, Dario P. Carvalho, Waleska Gravena, Ronaldo de Almeida, Marília H. Mussy, Eduardo A. Sousa, Igor B. B. Holanda, Izidro F. de Sousa-Filho, Wanderley R. Bastos. Total mercury and methylmercury in river dolphins (Cetacea: Iniidae: Inia spp.) in the Madeira River Basin, Western Amazon. Environmental Science and Pollution Research. 2021; 28 (33):45121-45133.

Chicago/Turabian Style

Melissa S. Barbosa; Dario P. Carvalho; Waleska Gravena; Ronaldo de Almeida; Marília H. Mussy; Eduardo A. Sousa; Igor B. B. Holanda; Izidro F. de Sousa-Filho; Wanderley R. Bastos. 2021. "Total mercury and methylmercury in river dolphins (Cetacea: Iniidae: Inia spp.) in the Madeira River Basin, Western Amazon." Environmental Science and Pollution Research 28, no. 33: 45121-45133.

Journal article
Published: 16 April 2021
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ACS Style

Melissa S Barbosa; Dario P Carvalho; Waleska Gravena; Ronaldo de Almeida; Marília H Mussy; Eduardo A Sousa; Igor B B Holanda; Izidro F de Sousa-Filho; Wanderley R Bastos. Total mercury and methylmercury in river dolphins (Cetacea: Iniidae: Inia spp.) in the Madeira River Basin, Western Amazon. 2021, 1 .

AMA Style

Melissa S Barbosa, Dario P Carvalho, Waleska Gravena, Ronaldo de Almeida, Marília H Mussy, Eduardo A Sousa, Igor B B Holanda, Izidro F de Sousa-Filho, Wanderley R Bastos. Total mercury and methylmercury in river dolphins (Cetacea: Iniidae: Inia spp.) in the Madeira River Basin, Western Amazon. . 2021; ():1.

Chicago/Turabian Style

Melissa S Barbosa; Dario P Carvalho; Waleska Gravena; Ronaldo de Almeida; Marília H Mussy; Eduardo A Sousa; Igor B B Holanda; Izidro F de Sousa-Filho; Wanderley R Bastos. 2021. "Total mercury and methylmercury in river dolphins (Cetacea: Iniidae: Inia spp.) in the Madeira River Basin, Western Amazon." , no. : 1.

Journal article
Published: 04 April 2021 in Water
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The concentration of chlorine in water declines as it reacts with various substances, causing decay of the residual free chlorine until its total consumption. In light of the typical characteristics of the water from protected dug wells and tube wells, this study aimed to evaluate the decay kinetics of free chlorine in the water of alternative individual supply (AIS) solutions used in the city of Porto Velho in the Brazilian Amazon region. The free chlorine decay constant in the water was evaluated by “bottle tests,” applying a first-order model. According to the results, the type of well and initial chlorine concentration significantly influences the free chlorine decay speed. The water samples from the tubular wells had lower chlorine demand levels, attributed to their better water quality. The simulation of the residual chlorine decay in the different supply sources is an important tool to support safe disinfection processes.

ACS Style

Taise Vargas; Célia Baía; Tatiana Machado; Caetano Dórea; Wanderley Bastos. Decay of Free Residual Chlorine in Wells Water of Northern Brazil. Water 2021, 13, 992 .

AMA Style

Taise Vargas, Célia Baía, Tatiana Machado, Caetano Dórea, Wanderley Bastos. Decay of Free Residual Chlorine in Wells Water of Northern Brazil. Water. 2021; 13 (7):992.

Chicago/Turabian Style

Taise Vargas; Célia Baía; Tatiana Machado; Caetano Dórea; Wanderley Bastos. 2021. "Decay of Free Residual Chlorine in Wells Water of Northern Brazil." Water 13, no. 7: 992.

Journal article
Published: 23 November 2020 in Águas Subterrâneas
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Este trabalho teve por objetivo avaliar a qualidade da água subterrânea do aquífero livre na microbacia do igarapé Nazaré (Ji-Paraná-RO), por meio de análises físico-químicas e microbiológicas. Foram realizadas 4 coletas de amostras de água em 15 poços rasos nos meses de (março, junho, setembro e dezembro de 2019). Os parâmetros condutividade elétrica, temperatura e o pH foram determinadas in loco por meio de sonda multiparâmetros. A turbidez e os sólidos totais dissolvidos foram determinados no laboratório com sondas especificas. O oxigênio dissolvido foi determinado pelo método titulométrico, a alcalinidade total foi obtida por titulação potenciométrica. As análises dos nutrientes foram realizadas por métodos espectrofotométricos, e as análises microbiológicas realizadas conforme o método de membrana filtrante em meio cromogênico. De acordo com os Valores Máximos Permitidos estabelecidos pela Portaria de Consolidação n° 5/2017 do Ministério da Saúde e com a Resolução do Conselho Nacional do Meio Ambiente CONAMA n° 396/2008, estiveram em desconformidade com tais legislações os coliformes totais, Escherichia coli, pH, turbidez e o nitrato. A análise de componentes principais não evidenciou diferença entre os períodos avaliados. Os resultados indicaram que a água dos poços encontra-se fora do padrão de potabilidade permitido para o consumo, podendo apresentar riscos à saúde humana.

ACS Style

Josilena De Jesus Laureano; Alan Gomes Mendonça; Daíse Da Silva Lopes; Lindolaine Machado De Sousa; Tiago De Oliveira Lima; Ana Lúcia Denardin Da Rosa; Wanderley Rodrigues Bastos; Elisabete Lourdes Do Nascimento. Análise da qualidade da água subterrânea. Águas Subterrâneas 2020, 35, 1 .

AMA Style

Josilena De Jesus Laureano, Alan Gomes Mendonça, Daíse Da Silva Lopes, Lindolaine Machado De Sousa, Tiago De Oliveira Lima, Ana Lúcia Denardin Da Rosa, Wanderley Rodrigues Bastos, Elisabete Lourdes Do Nascimento. Análise da qualidade da água subterrânea. Águas Subterrâneas. 2020; 35 (1):1.

Chicago/Turabian Style

Josilena De Jesus Laureano; Alan Gomes Mendonça; Daíse Da Silva Lopes; Lindolaine Machado De Sousa; Tiago De Oliveira Lima; Ana Lúcia Denardin Da Rosa; Wanderley Rodrigues Bastos; Elisabete Lourdes Do Nascimento. 2020. "Análise da qualidade da água subterrânea." Águas Subterrâneas 35, no. 1: 1.

Journal article
Published: 14 November 2020 in Revista Brasileira de Cartografia
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A população de Lábrea – AM está estimada em 46.069 habitantes, dos quais quase 70% vive em área urbana. A migração da população campo-cidade tem propiciado a expansão indiscriminada do espaço urbano de Lábrea. Por isso, é comum encontrar domicílios em áreas impróprias para instalação de moradias, não só do ponto de vista da fragilidade ambiental, mas também do ponto de vista geotécnico. Assim, o estudo teve o objetivo de realizar o diagnóstico da fragilidade ambiental potencial na área urbana do município de Lábrea. Os procedimentos metodológicos foram organizados em etapas: 1) arquitetura organizacional dos dados no SIG; 2) preparação de base cartográfica e processamento digital de imagem e; 3) determinação das classes de fragilidade potencial, a partir do método de individualização de unidades ecodinâmicas instáveis e estáveis. A cidade de Lábrea apresenta áreas com fragilidade ambiental potencial fraca, média e forte, correspondendo a 33,18%, 7,3% e 51,63% respectivamente. As unidades morfológicas de planície e os vales fluviais mostraram-se mais sensíveis às mudanças do sistema natural. Por outro lado, as unidades de depressão e terraços fluviais apresentaram média e fraca fragilidade ambiental, condições favoráveis ao processo de ampliação planejada da urbanização.

ACS Style

Joiada Moreira Da Silva Linhares; Déborah Pereira Linhares Da Silva; Wanderley Rodrigues Bastos; Josélia Fontenele Batista. Mapeamento da Fragilidade Ambiental Potencial do Meio Físico da Área Urbana do Município de Lábrea – Sul do Amazonas. Revista Brasileira de Cartografia 2020, 72, 651 -664.

AMA Style

Joiada Moreira Da Silva Linhares, Déborah Pereira Linhares Da Silva, Wanderley Rodrigues Bastos, Josélia Fontenele Batista. Mapeamento da Fragilidade Ambiental Potencial do Meio Físico da Área Urbana do Município de Lábrea – Sul do Amazonas. Revista Brasileira de Cartografia. 2020; 72 (4):651-664.

Chicago/Turabian Style

Joiada Moreira Da Silva Linhares; Déborah Pereira Linhares Da Silva; Wanderley Rodrigues Bastos; Josélia Fontenele Batista. 2020. "Mapeamento da Fragilidade Ambiental Potencial do Meio Físico da Área Urbana do Município de Lábrea – Sul do Amazonas." Revista Brasileira de Cartografia 72, no. 4: 651-664.

Journal article
Published: 17 July 2020 in Environmental Research
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The impact of a hydroelectric run-of-river (RoR) dam construction on the dynamics of total mercury (THg) and methylmercury (MeHg) is of interest to the environment and health of human and wild life. We monitored (May 2010 to October 2018) THg and MeHg in the waters and in the suspended particulate matter (SPM) of the Madeira River and its tributaries (before and after dam construction) to evaluate changes upstream and downstream from the Santo Antonio Hydroelectric Dam (SAHD). We collected 2826 samples of water and SPM at sampling stations upstream (UPMD-01, UPMD-02 and UPMD-03) and downstream the Madeira River (DWMD-04, DWMD-05 and DWMD-06), and Tributaries upstream (Branco River, Jaci-Parana River, Jatuarana-I Igarapé, Contra River, Caripunas Igarapé, Ceara Igarapé, and Teotonio Igarapé) and downstream (Jatuarana-II Igarapé and Belmont Igarapé) from the SAHD and monitored water and the total load of SPM. SPM was significantly higher in the Madeira River (median: 178.63 mg.L−1) than in upstream and downstream tributaries (median: 15.30 mg.L−1); however, the THg and MeHg concentrations were significantly higher in the tributaries (median: 161.14 ng g−1 and 9.03 ng g−1, respectively) than in the mainstream Madeira River (median = 57.06 ng g−1 and 1.63 ng g−1, respectively). THg concentration in the water was significantly higher in the mainstream Madeira River (median = 6.51 ng.L−1) than in the tributaries (median = 2.57 ng.L−1). However, the percentage of methylation in the tributaries (median = 4.9%) was 4-times higher than in the Madeira River (median: 1.3%). The significantly higher MeHg percentages in the tributaries may indicate natural (hydro-bio-geochemical factors) still predominant in this changing landscape of the Western Amazon. So far, the data suggest that this RoR has not yet impacted the THg and MeHg concentrations.

ACS Style

Wanderley R. Bastos; José G. Dórea; Luiz D. Lacerda; Ronaldo Almeida; Walkimar Aleixo Costa-Junior; Célia C. Baía; Izidro F. Sousa-Filho; Eduardo A. Sousa; Iuri Aparecida S. Oliveira; Cássio S. Cabral; Angelo G. Manzatto; Dario P. Carvalho; Kaio Augusto N. Ribeiro; Olaf Malm. Dynamics of Hg and MeHg in the Madeira River basin (Western Amazon) before and after impoundment of a run-of-river hydroelectric dam. Environmental Research 2020, 189, 109896 .

AMA Style

Wanderley R. Bastos, José G. Dórea, Luiz D. Lacerda, Ronaldo Almeida, Walkimar Aleixo Costa-Junior, Célia C. Baía, Izidro F. Sousa-Filho, Eduardo A. Sousa, Iuri Aparecida S. Oliveira, Cássio S. Cabral, Angelo G. Manzatto, Dario P. Carvalho, Kaio Augusto N. Ribeiro, Olaf Malm. Dynamics of Hg and MeHg in the Madeira River basin (Western Amazon) before and after impoundment of a run-of-river hydroelectric dam. Environmental Research. 2020; 189 ():109896.

Chicago/Turabian Style

Wanderley R. Bastos; José G. Dórea; Luiz D. Lacerda; Ronaldo Almeida; Walkimar Aleixo Costa-Junior; Célia C. Baía; Izidro F. Sousa-Filho; Eduardo A. Sousa; Iuri Aparecida S. Oliveira; Cássio S. Cabral; Angelo G. Manzatto; Dario P. Carvalho; Kaio Augusto N. Ribeiro; Olaf Malm. 2020. "Dynamics of Hg and MeHg in the Madeira River basin (Western Amazon) before and after impoundment of a run-of-river hydroelectric dam." Environmental Research 189, no. : 109896.

Original article
Published: 01 January 2020 in Revista Brasileira de Enfermagem
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Objective: to verify mercury exposure prevalence and identify its possible associated factors in two riverside communities in the Madeira River basin of the Western Brazilian Amazon. Method: a cross-sectional study comprising 95 children and adolescents. Age cycle, school attendance, Bolsa Família, number of siblings, meals, fish consumption, height by age were measured. Binary logistic regression was used to verify relationships between mercury exposure and its possible associated factors. Results: the general prevalence of mercury exposure was 46.3%; children, 35.4%; and adolescents, 57.4%. Associated factors were fish consumption (aOR=1.84; 95%CI 1.56-2.16), age cycle (aOR=2.50; 95%CI 1.09-5.7), parasites (aOR=1.22; 95%CI 1.02-2.71), and short stature (aOR=1.32; 95%CI 1.05-2.02). Conclusion: mercury exposure prevalence in riverside children and adolescents was considered worrying, with association with fish consumption, adolescence, parasites, and short stature.

ACS Style

Vanessa Alves Mendes; Débora Aparecida Da Silva Santos; Edson Dos Santos Farias; Dario Pires De Carvalho; Wanderley Rodrigues Bastos. Prevalence and factors associated with mercury exposure in riverside communities in the Brazilian Western Amazon. Revista Brasileira de Enfermagem 2020, 73, e20200100 .

AMA Style

Vanessa Alves Mendes, Débora Aparecida Da Silva Santos, Edson Dos Santos Farias, Dario Pires De Carvalho, Wanderley Rodrigues Bastos. Prevalence and factors associated with mercury exposure in riverside communities in the Brazilian Western Amazon. Revista Brasileira de Enfermagem. 2020; 73 (suppl 5):e20200100.

Chicago/Turabian Style

Vanessa Alves Mendes; Débora Aparecida Da Silva Santos; Edson Dos Santos Farias; Dario Pires De Carvalho; Wanderley Rodrigues Bastos. 2020. "Prevalence and factors associated with mercury exposure in riverside communities in the Brazilian Western Amazon." Revista Brasileira de Enfermagem 73, no. suppl 5: e20200100.

Journal article
Published: 05 November 2019 in Revista Ibero-Americana de Ciências Ambientais
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The aim of this study was to evaluate the physical, chemical and microbiological groundwater parameters as well as the mapping of groundwater flow in an urban area of Presidente Médici county in Rondônia State, Southern Amazon. The water samples were collected in 11 wells in April and June of 2017, which corresponds to the dry season in the studied region. Groundwater was acidic, with a large range of nutrients concentration, low turbidity and presence of fecal coliforms in most sampled wells. The parameters that were in disagreement with Consolidation Ordinance No 05/2017/MS and CONAMA no 396/08 Resolution, were pH, turbidity, total coliforms, Escherichia coli, and nitrate. Regarding the microbiological parameter, most of the sampling sites were in disagreement with the established by the legislation that it recommends to be absent in 100mL, when it is destined for human consumption. Densities found were higher than 112,000UFC/100mL for total coliforms and higher than 56,000UFC/100mL for Escherichia coli. The pH ranged from 4.1 to 6.4, and the turbidity showed a maximum value of 6.7 uT. The nitrate concentrations were above the established level (10 mg.L-1) in April in 72.7%, and in June 50% of the wells, with a maximum of 48.5 mg.L-1. The study of the direction of the underground flow demonstrated the predominance of the flow towards the nearest river, as well as potential contributors of microbiological influences. The results indicate contamination of the groundwater by domestic sewage, being proved by the presence of coliforms and nitrate, being the water unfit for human consumption without adequate treatment.

ACS Style

Josilena De Jesus Laureano; Caryne Ferreira Ramos; Daíse Da Silva Lopes; Lindolaine Machado De Sousa; Maria Cristina Nery Do Nascimento Recktenvald; Walkimar Aleixo Da Costa Júnior; Ana Lúcia Denardin Da Rosa; Beatriz Machado Gomes; Andreza Pereira Mendonça; Nei Kavaguichi Leite; Wanderley Rodrigues Bastos; Elisabete Lourdes Do Nascimento. Groundwater quality and underground flow in southern Amazon, Brazil. Revista Ibero-Americana de Ciências Ambientais 2019, 10, 206 -217.

AMA Style

Josilena De Jesus Laureano, Caryne Ferreira Ramos, Daíse Da Silva Lopes, Lindolaine Machado De Sousa, Maria Cristina Nery Do Nascimento Recktenvald, Walkimar Aleixo Da Costa Júnior, Ana Lúcia Denardin Da Rosa, Beatriz Machado Gomes, Andreza Pereira Mendonça, Nei Kavaguichi Leite, Wanderley Rodrigues Bastos, Elisabete Lourdes Do Nascimento. Groundwater quality and underground flow in southern Amazon, Brazil. Revista Ibero-Americana de Ciências Ambientais. 2019; 10 (6):206-217.

Chicago/Turabian Style

Josilena De Jesus Laureano; Caryne Ferreira Ramos; Daíse Da Silva Lopes; Lindolaine Machado De Sousa; Maria Cristina Nery Do Nascimento Recktenvald; Walkimar Aleixo Da Costa Júnior; Ana Lúcia Denardin Da Rosa; Beatriz Machado Gomes; Andreza Pereira Mendonça; Nei Kavaguichi Leite; Wanderley Rodrigues Bastos; Elisabete Lourdes Do Nascimento. 2019. "Groundwater quality and underground flow in southern Amazon, Brazil." Revista Ibero-Americana de Ciências Ambientais 10, no. 6: 206-217.

Journal article
Published: 26 September 2019 in Revista de Biologia Neotropical / Journal of Neotropical Biology
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Freshwater invertebrates occupy important roles in ecological processes and are frequently used as indicators of water quality. Their existence, however, is still obscure in many regions of the country, i.e. very few relevant studies have been conducted regarding their presence especially in the Amazon region. Thus, this study aimed to present an inventory of aquatic macroinvertebrates from the marginal region of an Amazonian lake. This study was conducted in a floodplain area, at the Extractivist Reserve of Cuniã Lake (margin of the Madeira River).To sample macrofauna, were collected sediment and aquatic macrophytes near the marginal region in seven sites during low-water season (August 2015) and the high-water season (February 2016). The environmental variables (water temperature (ºC), electric conductivity (μS /cm), pH, and dissolved oxygen (mg/L) were measured at each site and concentrations of organic matter in the sediment were also determined. A total of 28 taxa were recorded. The most significant taxa for the lake were the genera: Campsurus (Ephemeroptera: Polymitarcydae) and Tenagobia (Hemiptera: Corixidae. The lake presents diverse macrofauna, indicating good environmental quality and organic enrichment, which highlights the importance of flood in composition of local macrofauna.

ACS Style

Diego Ferreira Gomes; Nathalie Aparecida De Oliveira Sanches; Douglas De Pádua Andrade; Wanderley Rodrigues Bastos. Occurrence of aquatic macroinvertebrates in an extrativist reserve of brazilian Amazon. Revista de Biologia Neotropical / Journal of Neotropical Biology 2019, 16, 50 -60.

AMA Style

Diego Ferreira Gomes, Nathalie Aparecida De Oliveira Sanches, Douglas De Pádua Andrade, Wanderley Rodrigues Bastos. Occurrence of aquatic macroinvertebrates in an extrativist reserve of brazilian Amazon. Revista de Biologia Neotropical / Journal of Neotropical Biology. 2019; 16 (2):50-60.

Chicago/Turabian Style

Diego Ferreira Gomes; Nathalie Aparecida De Oliveira Sanches; Douglas De Pádua Andrade; Wanderley Rodrigues Bastos. 2019. "Occurrence of aquatic macroinvertebrates in an extrativist reserve of brazilian Amazon." Revista de Biologia Neotropical / Journal of Neotropical Biology 16, no. 2: 50-60.

Data article
Published: 07 August 2019 in Data in Brief
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A cohort of 100 exclusively breastfed children was formed to study association between neurodevelopment and Hg exposure [1]. Detailed questionnaires were administered by trained interviewers to the mothers, and measurements of early child development were collected at 6, 36 and 60 months by trained nurses and psychologists using the Gesell Developmental Schedules. The association between prenatal and postnatal organic Hg (methyl-Hg from fish consumption and ethyl-Hg from Thimerosal-containing vaccine) exposures with Gesell scores of the four domains [Adaptive ability, Language development, Motor abilities (gross motor), and Personal-social ability] were studied in preschool children.

ACS Style

Rejane Correa Marques; José G. Dórea; José Vicente Elias Bernardi; Wanderley Rodrigues Bastos; Olaf Malm. Data relating neurodevelopment of exclusively breastfed children of urban mothers and pre- and post-natal mercury exposure. Data in Brief 2019, 25, 104283 .

AMA Style

Rejane Correa Marques, José G. Dórea, José Vicente Elias Bernardi, Wanderley Rodrigues Bastos, Olaf Malm. Data relating neurodevelopment of exclusively breastfed children of urban mothers and pre- and post-natal mercury exposure. Data in Brief. 2019; 25 ():104283.

Chicago/Turabian Style

Rejane Correa Marques; José G. Dórea; José Vicente Elias Bernardi; Wanderley Rodrigues Bastos; Olaf Malm. 2019. "Data relating neurodevelopment of exclusively breastfed children of urban mothers and pre- and post-natal mercury exposure." Data in Brief 25, no. : 104283.

Chapter
Published: 23 October 2018 in Igapó (Black-water flooded forests) of the Amazon Basin
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Negro river, the largest black-water tributary of the Amazon, has soils naturally rich in mercury (Hg) that is leached to the aquatic ecosystem by pedologic processes. The flooded areas of its basin are conducive to mercury methylation. Therefore, highest mercury concentrations have been observed in its black-water and biota even in regions without anthropogenic impacts. Here we show an integrated analysis of total mercury (THg) and methylmercury (MeHg) data of environmental samples collected along the Negro basin. THg concentrations in whole water of Negro river and its tributaries did not vary between two hydrological seasons, but in suspended matter were highest during high-water season showing that mercury was more associated to particulate form during this time. During high-water season, waters of Negro river and its tributaries showed highest MeHg concentrations, were more acid, and less oxygenated. The %MeHg in relation to THg of plankton from floodplain lakes of Negro basin was in the same range or higher than the values observed in plankton from natural lakes or reservoirs. Therefore, some processes can occur specially in the environmental conditions of Negro basin such as highest and fastest MeHg absorption by plankton and greater availability of MeHg to bioaccumulation. We conclude that probably MeHg is formed mainly in the flooded area, where dissolved oxygen in depleted and the microbial activity of anoxic organisms is increased. The Amazonian lakes are hot spots for MeHg absorption by planktonic communities and can have an important contribution to Hg concentrations of the basin by exporting large MeHg levels associated to these organisms. Along the food chain of the Negro basin, it was possible to observe the biomagnification of mercury from phytoplankton to dolphin, with increase of mercury concentrations around one order of magnitude from one trophic level to other. Amazon basins, including Negro, have been frightened by diverse land use that can change the mercury cycle and increase concentrations in aquatic systems.

ACS Style

Daniele Kasper; Bruce Rider Forsberg; Helena Do Amaral Kehrig; João Henrique Fernandes Amaral; Wanderley Rodrigues Bastos; Olaf Malm. Mercury in Black-Waters of the Amazon. Igapó (Black-water flooded forests) of the Amazon Basin 2018, 39 -56.

AMA Style

Daniele Kasper, Bruce Rider Forsberg, Helena Do Amaral Kehrig, João Henrique Fernandes Amaral, Wanderley Rodrigues Bastos, Olaf Malm. Mercury in Black-Waters of the Amazon. Igapó (Black-water flooded forests) of the Amazon Basin. 2018; ():39-56.

Chicago/Turabian Style

Daniele Kasper; Bruce Rider Forsberg; Helena Do Amaral Kehrig; João Henrique Fernandes Amaral; Wanderley Rodrigues Bastos; Olaf Malm. 2018. "Mercury in Black-Waters of the Amazon." Igapó (Black-water flooded forests) of the Amazon Basin , no. : 39-56.

Comparative study
Published: 01 February 2018 in Gene
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Pristine forest ecosystems provide a unique perspective for the study of plant-associated microbiota since they host a great microbial diversity. Although the Amazon forest is one of the hotspots of biodiversity around the world, few metagenomic studies described its microbial community diversity thus far. Understanding the environmental factors that can cause shifts in microbial profiles is key to improving soil health and biogeochemical cycles. Here we report a taxonomic and functional characterization of the microbiome from the rhizosphere of Brosimum guianense (Snakewood), a native tree, and bulk soil samples from a pristine Brazilian Amazon forest reserve (Cuniã), for the first time by the shotgun approach. We identified several fungi and bacteria taxon significantly enriched in forest rhizosphere compared to bulk soil samples. For archaea, the trend was the opposite, with many archaeal phylum and families being considerably more enriched in bulk soil compared to forest rhizosphere. Several fungal and bacterial decomposers like Postia placenta and Catenulispora acidiphila which help maintain healthy forest ecosystems were found enriched in our samples. Other bacterial species involved in nitrogen (Nitrobacter hamburgensis and Rhodopseudomonas palustris) and carbon cycling (Oligotropha carboxidovorans) were overrepresented in our samples indicating the importance of these metabolic pathways for the Amazon rainforest reserve soil health. Hierarchical clustering based on taxonomic similar microbial profiles grouped the forest rhizosphere samples in a distinct clade separated from bulk soil samples. Principal coordinate analysis of our samples with publicly available metagenomes from the Amazon region showed grouping into specific rhizosphere and bulk soil clusters, further indicating distinct microbial community profiles. In this work, we reported significant shifts in microbial community structure between forest rhizosphere and bulk soil samples from an Amazon forest reserve that are probably caused by more than one environmental factors such as rhizosphere and soil depth.

ACS Style

Jose Pedro Fonseca; Luisa Hoffmann; Bianca Catarina Azeredo Cabral; Victor Hugo Giordano Dias; Marcio Rodrigues Miranda; Allan Cezar De Azevedo Martins; Clarissa Boschiero; Wanderley Rodrigues Bastos; Rosane Silva. Contrasting the microbiomes from forest rhizosphere and deeper bulk soil from an Amazon rainforest reserve. Gene 2018, 642, 389 -397.

AMA Style

Jose Pedro Fonseca, Luisa Hoffmann, Bianca Catarina Azeredo Cabral, Victor Hugo Giordano Dias, Marcio Rodrigues Miranda, Allan Cezar De Azevedo Martins, Clarissa Boschiero, Wanderley Rodrigues Bastos, Rosane Silva. Contrasting the microbiomes from forest rhizosphere and deeper bulk soil from an Amazon rainforest reserve. Gene. 2018; 642 ():389-397.

Chicago/Turabian Style

Jose Pedro Fonseca; Luisa Hoffmann; Bianca Catarina Azeredo Cabral; Victor Hugo Giordano Dias; Marcio Rodrigues Miranda; Allan Cezar De Azevedo Martins; Clarissa Boschiero; Wanderley Rodrigues Bastos; Rosane Silva. 2018. "Contrasting the microbiomes from forest rhizosphere and deeper bulk soil from an Amazon rainforest reserve." Gene 642, no. : 389-397.

Article
Published: 10 January 2018 in Environmental Monitoring and Assessment
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Total mercury (THg) concentrations measured in two freshwater shrimp species (Macrobrachium depressimanum and Macrobrachium jelskii) showed a relationship with the location of artisanal and small-scale gold mining (ASGM) from the Madeira River Basin, Western Amazon. Between August 2009 and May 2010, 212 shrimp samples were collected in the confluence of the Madeira River with three of its tributaries (Western Amazon). THg concentration was quantified in the exoskeleton, hepatopancreas and muscle tissue of the shrimps by cold vapor atomic absorption spectrophotometry. There were no significant differences between the two shrimp species when samples came from the Madeira River, but Hg concentrations were significantly lower in a tributary outside the influence of the gold mining area. Average THg concentrations were higher in the hepatopancreas (up to 160.0 ng g-1) and lower in the exoskeleton and muscle tissue (10.0-35.0 ng g-1 and < 0.9-42.0 ng g-1, respectively). Freshwater shrimps from the Madeira River respond to local environmental levels of Hg and can be considered as biomonitors for environmental Hg at this spatial scale. These organisms are important for moving Hg up food webs including those that harbor economic significant fish species and thus enhancing human exposure.

ACS Style

R. C. F. Galvão; I. B. B. Holanda; D. P. De Carvalho; R. Almeida; C. M. M. Souza; L. D. Lacerda; W. R. Bastos. Freshwater shrimps (Macrobrachium depressimanum and Macrobrachium jelskii) as biomonitors of Hg availability in the Madeira River Basin, Western Amazon. Environmental Monitoring and Assessment 2018, 190, 77 .

AMA Style

R. C. F. Galvão, I. B. B. Holanda, D. P. De Carvalho, R. Almeida, C. M. M. Souza, L. D. Lacerda, W. R. Bastos. Freshwater shrimps (Macrobrachium depressimanum and Macrobrachium jelskii) as biomonitors of Hg availability in the Madeira River Basin, Western Amazon. Environmental Monitoring and Assessment. 2018; 190 (2):77.

Chicago/Turabian Style

R. C. F. Galvão; I. B. B. Holanda; D. P. De Carvalho; R. Almeida; C. M. M. Souza; L. D. Lacerda; W. R. Bastos. 2018. "Freshwater shrimps (Macrobrachium depressimanum and Macrobrachium jelskii) as biomonitors of Hg availability in the Madeira River Basin, Western Amazon." Environmental Monitoring and Assessment 190, no. 2: 77.

Journal article
Published: 01 January 2018 in Química Nova
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Leidiane C. Lauthartte; Diego Gomes; Marília Mussy; Ígor Holanda; Ronaldo De Almeida De Almeida; Wanderley Bastos. POTENCIAL EXPOSIÇÃO AO MERCÚRIO ATMOSFÉRICO NO AMBIENTE OCUPACIONAL DE COMÉRCIOS DE OURO DE PORTO VELHO, RONDÔNIA. Química Nova 2018, 2018, 1 .

AMA Style

Leidiane C. Lauthartte, Diego Gomes, Marília Mussy, Ígor Holanda, Ronaldo De Almeida De Almeida, Wanderley Bastos. POTENCIAL EXPOSIÇÃO AO MERCÚRIO ATMOSFÉRICO NO AMBIENTE OCUPACIONAL DE COMÉRCIOS DE OURO DE PORTO VELHO, RONDÔNIA. Química Nova. 2018; 2018 ():1.

Chicago/Turabian Style

Leidiane C. Lauthartte; Diego Gomes; Marília Mussy; Ígor Holanda; Ronaldo De Almeida De Almeida; Wanderley Bastos. 2018. "POTENCIAL EXPOSIÇÃO AO MERCÚRIO ATMOSFÉRICO NO AMBIENTE OCUPACIONAL DE COMÉRCIOS DE OURO DE PORTO VELHO, RONDÔNIA." Química Nova 2018, no. : 1.

Journal article
Published: 29 July 2016 in Biogeosciences
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Regions in the Amazon Basin have been associated with specific biogeochemical processes, but a detailed chemical classification of the abundant and ubiquitous dissolved organic matter (DOM), beyond specific indicator compounds and bulk measurements, has not yet been established. We sampled water from different locations in the Negro, Madeira/Jamari and Tapajós River areas to characterize the molecular DOM composition and distribution. Ultrahigh-resolution Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) combined with excitation emission matrix (EEM) fluorescence spectroscopy and parallel factor analysis (PARAFAC) revealed a large proportion of ubiquitous DOM but also unique area-specific molecular signatures. Unique to the DOM of the Rio Negro area was the large abundance of high molecular weight, diverse hydrogen-deficient and highly oxidized molecular ions deviating from known lignin or tannin compositions, indicating substantial oxidative processing of these ultimately plant-derived polyphenols indicative of these black waters. In contrast, unique signatures in the Madeira/Jamari area were defined by presumably labile sulfur- and nitrogen-containing molecules in this white water river system. Waters from the Tapajós main stem did not show any substantial unique molecular signatures relative to those present in the Rio Madeira and Rio Negro, which implied a lower organic molecular complexity in this clear water tributary, even after mixing with the main stem of the Amazon River. Beside ubiquitous DOM at average H ∕ C and O ∕ C elemental ratios, a distinct and significant unique DOM pool prevailed in the black, white and clear water areas that were also highly correlated with EEM-PARAFAC components and define the frameworks for primary production and other aspects of aquatic life.

ACS Style

Michael Gonsior; Juliana Valle; Philippe Schmitt-Kopplin; Norbert Hertkorn; David Bastviken; Jenna Luek; Mourad Harir; Wanderley Bastos; Alex Enrich-Prast. Chemodiversity of dissolved organic matter in the Amazon Basin. Biogeosciences 2016, 13, 4279 -4290.

AMA Style

Michael Gonsior, Juliana Valle, Philippe Schmitt-Kopplin, Norbert Hertkorn, David Bastviken, Jenna Luek, Mourad Harir, Wanderley Bastos, Alex Enrich-Prast. Chemodiversity of dissolved organic matter in the Amazon Basin. Biogeosciences. 2016; 13 (14):4279-4290.

Chicago/Turabian Style

Michael Gonsior; Juliana Valle; Philippe Schmitt-Kopplin; Norbert Hertkorn; David Bastviken; Jenna Luek; Mourad Harir; Wanderley Bastos; Alex Enrich-Prast. 2016. "Chemodiversity of dissolved organic matter in the Amazon Basin." Biogeosciences 13, no. 14: 4279-4290.

Journal article
Published: 23 June 2016 in Ambiente e Agua - An Interdisciplinary Journal of Applied Science
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Mercury is a major pollutant in the Amazon River system, and its levels in fish and human hair are usually above the limit recommended by health agencies. The objective of this study was to analyze the methylmercury (MeHg) concentration in fish tissue from the Roosevelt River. The river's water velocity, depth, pH, temperature, electrical conductivity, dissolved oxygen and substrate type were measured, and fifty specimens distributed in 14 fish species were collected. A total of 64.3% of the sampled species were of the order Characiform and 71.4% of the species were carnivores. Fifty percent of the species had MeHg concentrations above threshold limit (Hg-T 0.5 mg kg -1) established for food by the World Health Organization. Cichla monoculus had the highest value of MeHg (2.45 mg kg -1) . The MeHg concentration in fish varied according to dietary habits. The study also found bioaccumulation of MeHg in fish tissue in the following descending order: carnivorous > detritivorous > frugivore. Low significant correlations were found between fish weight or length and MeHg. Further studies on MeHg contamination are recommended in tissues of fish consumed in human riverine communities in the Roosevelt River Basin. Key words: biomagnification; chemical contamination; water pollution.

ACS Style

Marcelo Rodrigues Dos Anjos; Nadja Gomes Machado; Maria Eliana Peixoto Da Silva; Wanderley Rodrigues Bastos; Márcio Rodrigues Miranda; Dario Pires De Carvalho; Marília Higino Mussy; Igor Bruno Barbosa De Holanda; Marcelo Sacardi Biudes; João Ânderson Fulan. Bioaccumulation of methylmercury in fish tissue from the Roosevelt River, Southwestern Amazon basin. Ambiente e Agua - An Interdisciplinary Journal of Applied Science 2016, 11, 508 .

AMA Style

Marcelo Rodrigues Dos Anjos, Nadja Gomes Machado, Maria Eliana Peixoto Da Silva, Wanderley Rodrigues Bastos, Márcio Rodrigues Miranda, Dario Pires De Carvalho, Marília Higino Mussy, Igor Bruno Barbosa De Holanda, Marcelo Sacardi Biudes, João Ânderson Fulan. Bioaccumulation of methylmercury in fish tissue from the Roosevelt River, Southwestern Amazon basin. Ambiente e Agua - An Interdisciplinary Journal of Applied Science. 2016; 11 (3):508.

Chicago/Turabian Style

Marcelo Rodrigues Dos Anjos; Nadja Gomes Machado; Maria Eliana Peixoto Da Silva; Wanderley Rodrigues Bastos; Márcio Rodrigues Miranda; Dario Pires De Carvalho; Marília Higino Mussy; Igor Bruno Barbosa De Holanda; Marcelo Sacardi Biudes; João Ânderson Fulan. 2016. "Bioaccumulation of methylmercury in fish tissue from the Roosevelt River, Southwestern Amazon basin." Ambiente e Agua - An Interdisciplinary Journal of Applied Science 11, no. 3: 508.