Metal pollution assessment in a Brazilian hydroelectric reservoir: Geophagus brasiliensis as a suitable bioindicator organism

Doria, Halina Binde; Voigt, Carmen Lúcia; Campos, Sandro Xavier de; Randi, Marco Antônio Ferreira

doi:10.4136/ambi-agua.2061

Cited by 6 publications

(5 citation statements)

References 43 publications

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“…In this sense, the high Ni concentration in the sampling point 2 could be associated to the discharge of urban wastes from the Itaguaçu city, in the state of Goiás, Brazil. The Ni pollution levels in this study worry as the intake of foods contaminated with this metal lead to harmful effects on the biota and human health [7,52].…”

Section: Resultsmentioning

confidence: 99%

“…Hence, potentially toxic metals existing in hydrographic basins are also deposited in these environmental sites [4][5][6]. The water contamination by toxic metals is a worldwide issue due to high amount of HEPP constructed in the last years, and, lack of environmental politics for the monitoring and management of HEPP direct influence areas [7].…”

Section: Introductionmentioning

confidence: 99%

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Environmental Assessment and Toxic Metal-Contamination Level in Surface Sediment of a Water Reservoir in the Brazilian Cerrado

Cabral

Nogueira

Becegato

et al. 2021

Water

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Polluted sediments limit the useful and biotic life of a water reservoir. Therefore, the classification and verification of the contamination and pollution levels of water reservoirs are essentials for the preservation of the biota and to organize the actions of environmental management. Thus, the aim of this study is to determine the concentrations of potentially toxic metals [lead (Pb), zinc (Zn), nickel (Ni), copper (Cu), and cadmium (Cd)] in sediment samples collected in the water reservoir of the Foz do Rio Claro Hydroelectric Power Plant (FRCHEPP) and estimate the contamination level by using the geoaccumulation index (Igeo). All results were compared with the values established by the CONAMA Resolution 454/2012. The Cu and Cd concentrations in the sediment samples were above Level II for most of the analyzed points in comparison with the data of the CONAMA resolution, being classified as poor quality sediments. Moreover, the Igeo values indicated potential pollution of the water reservoir sediment by Cu and Cd. Hence, the water reservoir was classified between moderately and extremely polluted. From this work it is possible to conclude that the frequent monitoring of the sediment quality in the FRCHEPP water reservoir is an indispensable action for periodic evaluation of the hydrographic basin quality in the study region, considering its importance as water supply and power generation for the state of Goiás, Brazil. Overall, the results of this work can be important to study other water reservoirs around the world.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Environmental Assessment and Toxic Metal-Contamination Level in Surface Sediment of a Water Reservoir in the Brazilian Cerrado

Cabral

Nogueira

Becegato

et al. 2021

Water

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“…While we observed a predominance of normal lamellae in the specimens of B. iheringii collected in the S1, the opposite was observed for A. brevipinnis, i.e., a predominance of normal lamellae in the S3. Considering that the gills represent the first organ in contact with external pollutants (Doria, Voigt, Campos, & Randi, 2017), and knowing that the S3 is located within a private property containing rice cultivation, we can consider that the results observed in A. brevipinnis do not seem to reflect the real impact of sampling sites.…”

Section: Discussionmentioning

confidence: 97%

Evaluation of the use of Ancistrus brevipinnis (Loricariidae) as a bioindicator of water quality in the Ilha river, RS, Brazil

Burghausen,

Rodrigues,

Staudt

et al. 2023

Acta Sci. Biol. Sci.

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The use of fish as bioindicators of the effect of contaminants in the aquatic environment is usual. However, detritivorous species are less used for environmental monitoring. Thus, the aim of this study was to evaluate the use of Ancistrus brevipinnis as a potential bioindicator of water quality of the Ilha River, RS (southern Brazil) and compared to the result obtained for a routine species (Bryconamericus iheringii). For this purpose, the condition factor (CF), the presence of morphological changes in the gills and the quantification of metals in different tissues of the specimens collected in three sites of the Ilha River were evaluated. A homogeneity in the distribution of data was observed in the CF for the species B. iheringii, whereas the specimens of A. brevipinnis showed an oscillation in the distribution of data of the CF. Histological analysis showed greater sensitivity of B. iheringii in reproducing characteristics of the environment in its gill lamellae, which was not observed in A. brevipinnis. Conversely, Cr quantification was higher in the intestine samples of A. brevipinnis at all sites and in all collections due to its feeding behavior. The data reinforce the use of water column species as Bryconamericus iheringii for environmental monitoring, even if they do not reflect the whole aquatic ecosystem. Further studies evaluating other tissues and biomarkers, such as the gastrointestinal tract, may assist in describing the use of species more related to sediment.

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“…Apesar de os valores do Ni terem variado entre 06,60 mg/kg e 20,69 mg/kg, os níveis de poluição verificados, quando excedem os limites das diretrizes de qualidade dos sedimentos, são preocupantes, pois, a ingestão de alimentos/nutrientes contaminados com este metal pode causar efeitos adversos à biota (CETESB, 2005;DORIA et al, 2017).…”

Section: Organização: Autoresunclassified

Avaliação qualitativa do risco de poluição por metais potencialmente tóxicos nos sedimentos do empreendimento hidrelétrico de Foz do Rio Claro

Nogueira¹,

Cabral²,

Camara³

2021

Rev. Dep. Geogr.

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O presente estudo teve como objetivo avaliar a concentração de metais potencialmente tóxicos - Chumbo (Pb), Zinco (Zi), Níquel (Ni), Cobre (Cu) e Cádmio (Cd) - em amostras de sedimento coletadas no reservatório da UHE Foz do Rio Claro. Para avaliar os níveis de poluição, foram calculados o índice de geoacumulação (IGeo), além de utilizar os valores orientadores estabelecidos pela Resolução Conama 454/2012. De maneira geral, os elementos Cu e Cd apresentaram valores acima do nível II para a maioria dos pontos analisados, resultando na classificação de péssima qualidade dos sedimentos analisados. O cálculo do IGeo apontou a poluição do reservatório por Cu e Cd. Este estudo evidenciou a necessidade de um monitoramento frequente da qualidade dos sedimentos no reservatório Foz do Rio Claro, como procedimento indispensável para avaliação periódica da qualidade da bacia, considerando sua importância no fornecimento de água e geração de energia para o estado de Goiás.

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Metal pollution assessment in a Brazilian hydroelectric reservoir: Geophagus brasiliensis as a suitable bioindicator organism

Cited by 6 publications

References 43 publications

Environmental Assessment and Toxic Metal-Contamination Level in Surface Sediment of a Water Reservoir in the Brazilian Cerrado

Environmental Assessment and Toxic Metal-Contamination Level in Surface Sediment of a Water Reservoir in the Brazilian Cerrado

Evaluation of the use of Ancistrus brevipinnis (Loricariidae) as a bioindicator of water quality in the Ilha river, RS, Brazil

Avaliação qualitativa do risco de poluição por metais potencialmente tóxicos nos sedimentos do empreendimento hidrelétrico de Foz do Rio Claro

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