Evaluation of softwood and hardwood sawmill wastes impact on the common carp "Cyprinus carpio" and its aquatic environment: An oxidative stress study

Hajam, Maryam El; Plavan, Gabriel-Ionuţ; Kandri, N. Idrissi; Dumitru, Gabriela; Nicoară, Mircea; Zerouale, Abdelaziz; Faggio, Caterina

doi:10.1016/j.etap.2020.103327

Cited by 33 publications

(14 citation statements)

References 46 publications

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“…Further, high levels of SOD in the liver are a response to oxidative stress caused by the presence of heavy metals, which generated the production of superoxide anions which activated SOD to convert the superoxide radical to H 2 O 2 [93]. In case of CAT, a decreased activity compared to the rest of the antioxidant enzymes is expected due to inhibition by the wave of superoxide radicals [94][95][96]. The decreased CAT activity may be due to the flux of superoxide radicals, which have been shown to inhibit CAT activity [93].…”

Section: Non-linear Models Based On Random Forest (Rf) Algorithmmentioning

confidence: 99%

Predictive Innovative Methods for Aquatic Heavy Metals Pollution Based on Bioindicators in Support of Blue Economy in the Danube River Basin

et al. 2021

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Heavy metal pollution is still present in the Danube River basin, due to intensive naval and agricultural activities conducted in the area. Therefore, continuous monitoring of this pivotal aquatic macro-system is necessary, through the development and optimization of monitoring methodologies. The main objective of the present study was to develop a prediction model for heavy metals accumulation in biological tissues, based on field gathered data which uses bioindicators (fish) and oxidative stress (OS) biomarkers. Samples of water and fish were collected from the lower sector of Danube River (DR), Danube Delta (DD) and Black Sea (BS). The following indicators were analyzed in samples: cadmium (Cd), lead (Pb), iron (Fe), zinc (Zn), copper (Cu) (in water and fish tissues), respectively, catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx), malondialdehyde (MDA) (in fish tissues). The pollution index (PI) was calculated to identify the most polluted studied ecosystem, which revealed that Danube River is seriously affected by the presence of Fe (IP = 4887) and strongly affected by the presence of Zn (IP = 4.49). The concentration of Cd in fish muscle tissue was above the maximum permitted level (0.05 µg/g) by the EU regulation. From all analyzed OS biomarkers, MDA registered the highest median values in fish muscle (145.7 nmol/mg protein in DR, 201.03 nmol/mg protein in DD, 148.58 nmol/mg protein in BS) and fish liver (200.28 nmol/mg protein in DR, 163.67 nmol/mg protein, 158.51 nmol/mg protein), compared to CAT, SOD and GPx. The prediction of Cd, Pb, Zn, Fe and Cu in fish hepatic and muscle tissue was determined based on CAT, SOD, GPx and MDA, by using non-linear tree-based RF prediction models. The analysis emphasizes that MDA in hepatic tissue is the most important independent variable for predicting heavy metals in fish muscle and tissues at BS coast, followed by GPx in both hepatic and muscle tissues. The RF analytical framework revealed that CAT in muscle tissue, respectively, MDA and GPx in hepatic tissues are most common predictors for determining the heavy metals concentration in both muscle and hepatic tissues in DD area. For DR, the MDA in muscle, followed by MDA in hepatic tissue are the main predictors in RF analysis.

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Section: Non-linear Models Based On Random Forest (Rf) Algorithmmentioning

confidence: 99%

Predictive Innovative Methods for Aquatic Heavy Metals Pollution Based on Bioindicators in Support of Blue Economy in the Danube River Basin

et al. 2021

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“…Estudos realizados na Nigéria demonstraram que a serragempó de madeira que se origina com o processo de serragem ou fresamento (HORNBY, 2000) tem sido armazenada em grandes proporções e, posteriormente queimadas a céu aberto causando poluição ambiental (ADEGOKE e MOHAMMED, 2002;EFFAH et al, 2015;OGUNTOKE et al, 2013;AJIBOYE et al, 2016), além de impactos negativos em corpos hídricos (ARIMORO e OSAKWE, 2006;ARIMORO et al, 2007). O impacto da disposição inadequada desses resíduos no meio ambiente afeta os ecossistemas aquáticos e terrestres (OWOYEMI et al, 2016;HAJAM et al, 2020). Rominiyi et al (2017) afirmam que esses resíduos poluentes podem ser um subproduto de valor para indústrias de manufatura de placas de madeira.…”

Section: Cascaunclassified

Gerenciamento De Resíduos Sólidos Madeireiros: Estudo Em Empresas Madeireiras No Município De Buri - Sp / Timber Solid Waste Management: Study in Timber Companies in the Municipality of Buri - Sp

Vasconcellos

Oliveira

2020

BJD

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Este estudo teve como objetivo analisar o processo de gestão dos resíduos sólidos madeireiros em duas serrarias que atuam no processo de transformação mecânica de madeira no município de Buri, estado de São Paulo. A pesquisa de cunho qualitativo, caráter exploratório-descritivo e abordagem de estudo de caso foi dividida em duas etapas. Na primeira etapa, procedeu-se pesquisa bibliográfica para subsidiar o referencial teórico e a elaboração dos instrumentos de coleta. Na segunda etapa foram realizadas visitas nas empresas utilizando-se da entrevista semiestruturada, pesquisa documental, corroboradas pela observação sistemática. Exceto em pontos específicos, os resultados se mostraram bastante parecidos em ambas as empresas, caracterizadas pela ausência de um sistema de gerenciamento de resíduos madeireiros, baixo aproveitamento dos resíduos como subprodutos, falta de qualificação da mão de obra especializada e direção do negócio realizada de forma bastante rudimentar. A pesquisa aponta minimamente pontos críticos a serem observados com mais acuidade pelos gestores e tomadores de decisão. Contribui com a ciência da gestão de forma geral e, em especial, com os aspectos do gerenciamento dos resíduos sólidos do setor madeireiro em empresas de pequeno porte (serrarias).

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“…Enormous amounts of reactive oxygen species (ROS) are formed as an outcome of xenobiotic metabolism (Burgos‐Aceves et al, 2018; Hajam et al, 2020; Hodkovicova et al, 2019; Plhalova et al, 2020). These ROS contribute to lipid peroxidation (LPO) by the formation of malondialdehyde (MDA) and cause significant disruption to biomolecules such as DNA, protein and membranes through oxidative stress (Ayala et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Acute toxicity and impact of sublethal exposure to commonly used surfactants sodium dodecyl sulphate, cetylpyridinium chloride and sodium laureth sulphate on oxidative stress enzymes in oligochaete worm Branchiura sowerbyi (Beddard, 1892)

Bhattacharya

Chatterjee

et al. 2021

Aquac Res

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The current study aimed to determine the detrimental effects of sodium dodecyl sulphate (SDS), cetylpyridinium chloride (CPC), and sodium laureth sulphate (SLES) on survival rate and oxidative stress enzymes in Branchiura sowerbyi (Beddard, 1892). The 96 h LC50 values of SDS, CPC and SLES to Branchiura sowerbyi were estimated to be 8.27, 0.12 and 19.58 mg/L, respectively. Moreover, surfactant toxicity was projected using general threshold survival models (GUTS) in terms of required data sets and fit performance. The result suggested that GUTS‐IT (individual tolerance) model can better predict the survival rate observed in Branchiura sowerbyi for surfactant exposure than the GUTS‐SD (stochastic death) model. Sublethal levels of SDS, CPC and SLES (10% and 30% of the 96 h LC50 value) elicited substantial changes in oxidative stress enzymes over the 14‐day exposure period. Superoxide dismutase (SOD), reduced glutathione (GSH), glutathione S‐transferase (GST) and glutathione peroxidase (GPx) demonstrated a significant increasing trend initially followed by a subsequent declining trend, but the levels of catalase (CAT), as well as malondialdehyde (MDA), increased significantly throughout the periods of exposure. The consequences of SDS, CPC and SLES on Branchiura sowerbyi were evaluated using a correlation matrix, principal component analysis, and integrated biomarker response assessment. These findings suggest that SDS, CPC and SLES exposure detrimentally affect survival rate and alter the levels of oxidative stress enzymes in Branchiura sowerbyi.

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Evaluation of softwood and hardwood sawmill wastes impact on the common carp "Cyprinus carpio" and its aquatic environment: An oxidative stress study

Cited by 33 publications

References 46 publications

Predictive Innovative Methods for Aquatic Heavy Metals Pollution Based on Bioindicators in Support of Blue Economy in the Danube River Basin

Predictive Innovative Methods for Aquatic Heavy Metals Pollution Based on Bioindicators in Support of Blue Economy in the Danube River Basin

Gerenciamento De Resíduos Sólidos Madeireiros: Estudo Em Empresas Madeireiras No Município De Buri - Sp / Timber Solid Waste Management: Study in Timber Companies in the Municipality of Buri - Sp

Acute toxicity and impact of sublethal exposure to commonly used surfactants sodium dodecyl sulphate, cetylpyridinium chloride and sodium laureth sulphate on oxidative stress enzymes in oligochaete worm Branchiura sowerbyi (Beddard, 1892)

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