Could Mussel Populations Be Differentially Threatened by the Presence of Microplastics and Related Chemicals?

Toxics, Journal Year: 2025, Volume and Issue: 13(3), P. 181 - 181

Published: Feb. 28, 2025

Mussels serve as indicators of anthropogenic chemical pollution; however, the effects microplastics and plastic-related chemicals on their health performance remain an emerging issue. In this study, mussels were exposed to a polyamide (PA; 5 μg/L) tricresyl phosphate (TCP; 1 for 28 days. The exposures two contaminants performed independently or in combination lasted results showed that independent exposure altered enzyme activities more significantly than combined one. Exposure PA (p < 0.05) inhibited antioxidant catalase (CAT) by 43.5% neurotransmitter acetylcholinesterase (AChE) 40.6%, while TCP specifically carboxylesterase (CE) activity 38.5%, all respect solvent control. When both pollutants combined, most biomarker responses similar control levels. To further investigate if mussels’ response (here, compounds only) could be population-specific, comparative study between Atlantic Mediterranean was included. Firstly, baseline detoxification defenses contrasted digestive glands each mussel population, followed assessment vitro wide range plastic additives. revealed expressed higher enzymes, although sensitivity targeted populations. Of additives tested, CE vivo vitro. screening also indicated other act strong inhibitors CE. However, additional are needed confirm suitability these exposures. All together, suggest critical population-level differences susceptibility microplastic pollution, highlighting need conservation efforts.

Language: Английский

Global Distribution Characteristics and Ecological Risk Assessment of Microplastics in Aquatic Organisms Based on Meta-Analysis

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 137977 - 137977

Published: March 1, 2025

Language: Английский