Effects of Acute Exposure to Toxicants on Oxidative Stress in Aquatic Organisms

Dear Colleagues,

Acute exposure to pollutants or stressors such as heavy metals, pesticides, drugs, and other toxic substances in aquatic environments can markedly affect oxidative stress levels in aquatic organisms. Oxidative stress is defined as an excessive production of free radicals that can impact the structure and activity of essential biological functions through damage to proteins, lipids, and DNA, potentially leading to cell death. However, the effects of oxidative stress are not uniform across all species, with reported species-specific differences in antioxidant capacity. Additionally, several endogenous and exogenous factors can contribute to the excessive production of free radicals. Therefore, studying the effects of acute exposure on oxidative stress in aquatic organisms by assessing different biomarkers (e.g., the levels of lipid peroxides, DNA damage, and antioxidant enzyme activities) is essential for understanding environmental impacts and developing effective conservation strategies.

In this sense, this Special Issue in the Toxics journal is devoted to the recent findings on “Effects of Acute Exposure on Oxidative Stress in Aquatic Organisms”. Consistent with this idea, experts are invited to contribute original research as well as review articles.

The contributions should be focused on new mechanisms and/or new approaches to advance our understanding of the harmful effects of oxidative stress in aquatic ecosystems, thereby helping with the establishment of guidelines for pollutant levels and allowing potential remediation efforts.

Dr. Luís Félix
Dr. Davi Farias
Guest Editors

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