Heavy metal(loid) effect on multi-biomarker responses in apex predator: Novel assays in the monitoring of white stork nestlings

Bjedov, Dora; Velki, Mirna; Toth, Leontina; Marijić, Vlatka Filipović; Mikuška, Tibor; Jurinović, Luka; Ečimović, Sandra; Turić, Nataša; Lončarić, Zdenko; Šariri, Sara; Marsoomi, Yasir Al; Mikuška, Alma

doi:10.1016/j.envpol.2023.121398

Cited by 5 publications

(3 citation statements)

References 106 publications

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“…A complete overview of descriptive statistics regarding esterase activity (ChE and CES) and oxidative stress biomarker response (GST, GR, GSH, and ROS) is shown in Table 1, and detailed outputs of statistical analyses are shown in Table S1. To simulate reference values, a table was constructed with the previously analysed biomarker responses [22,23] to compare with the values from the present study, in relation to the year of sample collection (Table S3). Results of esterase activity are shown in Figure 2 and Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…For appropriate risk assessment, the exposure to environmental pollutants can be estimated in white storks, and farmland birds in general, using biomarkers in the blood [21][22][23]. Their nestlings could ingest polluted prey foraged by their parents and suffer secondary poisoning, which can be reflected in pollutant accumulation and consequential effects on biomarker responses in the blood.…”

Section: Introductionmentioning

confidence: 99%

“…The white stork has been previously used as a sentinel species for biomonitoring assessment as several oxidative stress biomarkers have been evaluated. In particular, glutathione-dependent enzymes have been analysed in white stork nestlings' blood: glutathione S-transferase activity [22,23], glutathione reductase activity [30], glutathione peroxidase activity [31] and the concentration of glutathione [22,23].…”

Section: Introductionmentioning

confidence: 99%

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White Stork (Ciconia ciconia) Nestlings Affected by Agricultural Practices? Assessment of Integrated Biomarker Responses

Bjedov,

Velki,

Kovačić

et al. 2023

Agriculture

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The present study assessed the effect of agricultural practices on biomarker response in white stork (Ciconia ciconia) nestlings from continental Croatia. During the breeding season of 2022, blood was sampled (n = 54) from the landfill Jakuševec and the agricultural areas Baranja and Srijem. Different patterns of biomarker response in regard to the sampling site were detected. Results demonstrate the presence of inhibitory pollutants from the landfill Jakuševec and agricultural area Baranja, which is reflected in lower cholinesterase (ChE) activity. Oxidative stress biomarkers show different responses concerning study sites. Glutathione reductase (GR) activity was higher in Baranja and Srijem, suggesting a different mixture of pollutants inducing an antioxidative response. Leachate from the landfill Jakuševec is suspected to affect the white stork nestlings by elevating the concentrations of reactive oxygen species (ROS). An environmental combination of pollutants appears to induce oxidative stress in white stork nestlings. In addition to agricultural practices, white stork nestlings may also be under environmental pressure from the surrounding pollution. Further research is warranted to include additional chemical analysis to associate the environmental concentrations with the potential adverse effects in apex predators, such as the white stork.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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White Stork (Ciconia ciconia) Nestlings Affected by Agricultural Practices? Assessment of Integrated Biomarker Responses

Bjedov,

Velki,

Kovačić

et al. 2023

Agriculture

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Elevated Heavy Metal(loid) Blood and Feather Concentrations in Wetland Birds from Different Trophic Levels Indicate Exposure to Environmental Pollutants

Bjedov,

Bernal-Alviz,

Buelvas-Soto

et al. 2024

Arch Environ Contam Toxicol

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The research assessed the exposure to total mercury (THg), lead (Pb), and arsenic (As) in Colombian wetland species of different trophic levels Platalea ajaja, Dendrocygna autumnalis and Nannopterum brasilianus. The results show high THg blood levels in P. ajaja (811.00 ± 349.60 µg L–1) and N. brasilianus (209.50 ± 27.92 µg L–1) with P. ajaja possibly exhibiting adverse effects. Blood Pb concentration was high in D. autumnalis (212.00 ± 208.10 µg L–1) and above the threshold for adverse effects, suggesting subclinical poisoning. Levels of blood As were below the assumed threshold for detrimental effect (20 μg L−1). The mean concentration of feather THg was below the assumed natural background levels (5 µg g−1) for all three species. Feather Pb levels exceeded the levels for assumed threshold effects in all sampled N. brasilianus (7.40 ± 0.51 µg g–1). Results for feather As concentration were below the threshold for adverse impacts in all species, although a positive correlation between As and THg concentrations was detected in P. ajaja feathers. The overall results could help understand how metal(loid)s biomagnify through trophic levels and how wetland species may serve as environmental indicators. By exploring the interactions of metal(loid)s within different matrices and body, this study offers insights into the dynamics of contaminant accumulation and distribution in the environment. This concept can be applied to wetlands worldwide, where bird species can serve as indicators of ecosystem health and the presence of contaminants such as heavy metals and metalloids.

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A blood-based multi-biomarker approach reveals different physiological responses of common kestrels to contrasting environments

Giovanetti,

Caliani,

Damiani

et al. 2024

Environmental Research

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Heavy metal(loid) effect on multi-biomarker responses in apex predator: Novel assays in the monitoring of white stork nestlings

Cited by 5 publications

References 106 publications

White Stork (Ciconia ciconia) Nestlings Affected by Agricultural Practices? Assessment of Integrated Biomarker Responses

White Stork (Ciconia ciconia) Nestlings Affected by Agricultural Practices? Assessment of Integrated Biomarker Responses

Elevated Heavy Metal(loid) Blood and Feather Concentrations in Wetland Birds from Different Trophic Levels Indicate Exposure to Environmental Pollutants

A blood-based multi-biomarker approach reveals different physiological responses of common kestrels to contrasting environments

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