Biomarkers of oxidative stress and bioaccumulation of trace metals in waterbirds from different rice fields systems

We compared trace metal concentrations (Pb, Zn, Cd, Cu) in feathers and biomarkers in muscle and liver tissue of waterbirds from organic and conventional irrigated rice farms in South Brazil. Cu and Pb concentrations were higher in waterbirds from conventional farms, whereas Cd and Zn levels were el...

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Bibliographic Details
Published in:	DISCOVER ENVIRONMENT Vol. 2; no. 1; pp. 1 - 11
Main Authors:	Bergmann, Fabiane Borba, Leitemperger, Jossiele Wesz, Jorge, Marianna Basso, da Cunha Amaral, Hugo Leonardo, Bianchini, Adalto, Loro, Vania Lucio, Guadagnin, Demetrio Luis
Format:	Journal Article
Language:	English
Published:	Cham Springer International Publishing 29-04-2024 Springer
Subjects:	Biomarkers Earth and Environmental Science Environment Environmental Geography Environmental Science and Engineering Rice paddies Trace elements Waterfowl Biomarkers Trace elements Waterfowl Rice paddies
Online Access:	Get full text
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Summary:	We compared trace metal concentrations (Pb, Zn, Cd, Cu) in feathers and biomarkers in muscle and liver tissue of waterbirds from organic and conventional irrigated rice farms in South Brazil. Cu and Pb concentrations were higher in waterbirds from conventional farms, whereas Cd and Zn levels were elevated in organic farms. Birds foraging in organic farms exhibited lower CAT and SOD activity and higher NPSH, LPO, and PC concentrations compared to those in conventional farms. Higher Cu and Pb concentrations were associated with elevated SOD and CAT activity, more prevalent in birds frequenting conventional farms. Conversely, birds with higher Cd and Zn concentrations showed increased NPSH, LPO, and PC levels and were more common in organic farms. Our study underscores complex differences in trace metal accumulation and oxidative stress biomarkers among waterbirds in organic and conventional rice crops.
ISSN:	2731-9431 2731-9431
DOI:	10.1007/s44274-024-00070-0