Arsenic and Other Trace Elements in Five Edible Fish Species in Relation to Fish Size and Weight and Potential Health Risks for Human Consumption

Milošković, Aleksandra; Simić, Vladica

doi:10.15244/pjoes/24929

Cited by 23 publications

(7 citation statements)

References 46 publications

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“…This issue has raised concerns worldwide over the last decades. As fish are continuously exposed to chemicals in polluted waters, they could be used as biological markers of pollutants in aquatic systems (Milošković & Simić, 2015). In this sense, eutrophication is a potential environmental stressor, which alters the fundamental ecological processes that structure freshwater communities (Jacobson, Hansen, Bethke, & Cross, 2017).…”

Section: Introductionmentioning

confidence: 99%

Histopathological analysis of liver of the catfish Pimelodus maculatus in a tropical eutrophic reservoir from Southeastern Brazil

Araújo

Gomes

Nascimento

et al. 2019

Acta Sci. Biol. Sci.

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We described liver tissues of the long-whiskered catfish Pimelodus maculatus using histological techniques through structures stained with hematoxylin and eosin. A total of 21 adult individuals were collected using gill nets during the winter of 2012, in a eutrophic reservoir in Southeastern Brazil. The main aim was to characterize the tissues and eventual changes, since this organ has a notable sensitivity to changes in altered aquatic systems. The liver contains the exocrine pancreas (hepatopancreas) that have pancreatic cells arranged around a branch of the portal vein. The hepatocytes are diffuse and arranged in cords. Normal liver of P. maculatus have a continuous compact field of weakly eosinophilic, rounded hepatocytes with scattered islands of connective tissue that enclose the bile ducts and blood vessels. The organization of exocrine pancreatic tissues is similar to the acinar morphology of many teleosts. Histopathological alterations in liver were evaluated semi-quantitatively and based on the severity of the lesions. The alterations in each organ were classified in progressive stages of damage to the tissue. Six types of liver alterations were found: 1) cytoplasmic vacuolization; 2) congestion; 3) inflammatory infiltrated; 4) infiltration of adipocytes; 5) steatosis; 6) granuloma. Incidence of melanomacrophage centers were observed in the liver. However, we cannot directly associate such changes with the eutrophic conditions of the reservoir, because we have no available reference area to compare. These findings are a baseline contribution, which enables comparisons with similar fish species in other tropical aquatic systems in further studies.

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Section: Introductionmentioning

confidence: 99%

Histopathological analysis of liver of the catfish Pimelodus maculatus in a tropical eutrophic reservoir from Southeastern Brazil

Araújo

Gomes

Nascimento

et al. 2019

Acta Sci. Biol. Sci.

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“…Compared to other studies that evaluated metal concentrations in mackerel, higher metal concentrations were observed in our study than in previous studies (Table 1). Reported results in literature showed that metal accumulation in fish muscle varied widely depending on location [17], season [18], behavior, and feeding habits [19].…”

Section: Resultsmentioning

confidence: 99%

Assessing Toxic Elemental Concentrations in Marine Fish Trachurus capensis (Cape Horse Mackerel) and Implications for Public Health

Debipersadh

Selvarajan

Sibanda

et al. 2018

Pol. J. Environ. Stud.

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While fish is considered a healthy component of the human diet, consumption of fish with high levels of trace metals in their flesh constitutes a public health risk as trace metals have been proven to be toxic. We investigated the concentrations of toxic elements in seawater and also in different body parts of the fish Trachurus capensis caught near Durban, South Africa, using inductively coupled plasma-atomic emission spectrometry (ICP-AES). The highest metal concentration in fish body parts was observed for Pb, followed by Zn. Significantly higher levels of Mn were observed in fish gills as compared to the tissue (muscle) and fish frame. With respect to bioaccumulation, significantly higher Pb levels were observed in fish tissues compared to As, Cr, and Mn. In the frame, significantly higher Pb levels were observed compared to all other metals except Ba. There were no significant differences in the concentrations of different metals in fish gills. Overall, the toxic metal concentrations in the muscle of cape horse mackerel were below levels of concern for human consumption as defined by the FAO and WHO.

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“…Trace element determination in feed, food and animal tissues can demonstrate both the potential exposure to heavy metals and the uptake of essential elements via the food chain. Heavy metal concentration in animal tissues may reflect the severity of local environmental pollution (De Temmerman et al, 2003), as indicated by several studies in terrestrial (Miranda et al, 2005;Waegeneers et al, 2009) and aquatic (Milošković and Simić, 2015) organisms. Heavy metals differ from other pollutants in that they are neither created nor destroyed (Keil et al, 2011) and may naturally occur at relatively high concentrations in the environment (Waegeneers et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Blood and hair as non-invasive trace element biological indicators in growing rabbits

et al. 2019

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The suitability of blood and hair as non-invasive tools to monitor trace element contents was studied in 48 Hyla male growing rabbits. Three diets with increasing organic selenium (Se) addition (0.1, 0.5 and 2.5 mg/kg) were used to induce alterations in the concentrations of trace elements vs. an unsupplemented diet. In blood, a linear decrease in Co (P<0.001), Cu (P<0.001), Mn (P<0.05), Zn (P<0.05), Sb (P<0.001), As (P<0.001), Cr (P<0.001), Mo (P<0.001), Ni (P<0.001) and Cd (P<0.001) concentrations with increasing dietary Se was observed. In hair, a cubic effect of dietary Se on Co (P<0.01), Cu (P<0.05), Mn (P<0.001), Pb (P<0.05), Mo (P<0.05) and Cd (P<0.05) concentrations was found, while As, Cr and Ni concentrations decreased linearly (P<0.01, P<0.01 and P<0.001, respectively) with increasing dietary Se. Selenium was negatively correlated to Sb, As, Cr, Mo, Ni and Cd, (P<0.001) in blood, and to As (P<0.05), Cr, Ni (P<0.01) and Pb (P<0.05) in hair. The contents of Se, As, Cr and Ni in blood were highly correlated (P<0.001) to those in hair. Blood appeared to be more sensitive than hair in detecting small changes in the trace element profile in rabbits, as was indicated by the discriminant analysis. In conclusion, blood and hair can be suitable biological indicators of essential, toxic and potentially toxic trace element status in rabbits, particularly when used complementarily.

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Arsenic and Other Trace Elements in Five Edible Fish Species in Relation to Fish Size and Weight and Potential Health Risks for Human Consumption

Cited by 23 publications

References 46 publications

Histopathological analysis of liver of the catfish <i>Pimelodus maculatus</i> in a tropical eutrophic reservoir from Southeastern Brazil

Histopathological analysis of liver of the catfish <i>Pimelodus maculatus</i> in a tropical eutrophic reservoir from Southeastern Brazil

Assessing Toxic Elemental Concentrations in Marine Fish Trachurus capensis (Cape Horse Mackerel) and Implications for Public Health

Blood and hair as non-invasive trace element biological indicators in growing rabbits

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