Ecotoxicological Effects of Anthropogenic Contaminants in Aquatic Organisms

A special issue of Toxics (ISSN 2305-6304). This special issue belongs to the section "Ecotoxicology".

Deadline for manuscript submissions: 30 September 2025 | Viewed by 550

Special Issue Editors


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Guest Editor
Department of Biology, University of Naples Federico II, 80126 Naples, Italy
Interests: invertebrate models; behavioral toxicity; histological alterations; environmental pollutants
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Biology, University of Naples Federico II, 80126 Naples, Italy
Interests: Xenopus laevis; gene expression; embryo toxicology; embryogenesis; heavy metals
Special Issues, Collections and Topics in MDPI journals

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Guest Editor Assistant
Department of Biology, University of Naples Federico II, 80126 Naples, Italy
Interests: animal models; developmental toxicity; teratogenicity; ultrastructural alterations; emerging pollutants

Special Issue Information

Dear Colleagues,

This Special Issue focuses on the ecotoxicological impacts of anthropogenic contaminants on aquatic organisms, highlighting the complex interplay between pollutants and biological systems. Its scope encompasses molecular, cellular, and organismal levels of biological organization to provide a holistic understanding of contaminant-induced effects. It aims to bridge gaps in the existing literature by emphasizing under-represented species, particularly invertebrates and lower vertebrates, whose responses to pollutants remain underexplored. Studies regarding the effects on plants irrigated with contaminated water are equally welcome.

We seek contributions examining gene expression changes, epigenetic modifications, and alterations in signaling pathways and receptor interactions caused by contaminants. Research addressing behavioral disruptions as biomarkers of environmental toxicity is also encouraged. This Special Issue will contextualize findings within broader ecotoxicological paradigms by incorporating diverse methodologies and model systems, offering novel insights into mechanistic pathways and adaptive responses.

This issue builds on the existing literature by expanding the range of studied species, complementing work primarily focused on higher vertebrates. It will highlight emerging contaminants and innovative approaches to assess sub-lethal effects, positioning itself as an important resource for understanding ecotoxicological risks and informing conservation and regulatory policies. Through this interdisciplinary lens, this Special Issue seeks to advance our understanding of how anthropogenic activities shape aquatic ecosystems.

Prof. Dr. Chiara Maria Motta
Prof. Dr. Rosa Carotenuto
Guest Editors

Dr. Chiara Fogliano
Guest Editor Assistant

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Keywords

  • emerging pollutants
  • health assessment
  • aquatic ecosystems
  • behavioural alterations
  • histological alterations
  • gene expression
  • aquatic vertebrates and invertebrates
  • reproductive toxicology
  • interferences with metabolism

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Published Papers (1 paper)

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Research

18 pages, 5709 KB  
Article
Polystyrene Microplastic Interferes with Yolk Reserve Utilisation in Early Artemia salina Nauplii
by Chiara Maria Motta, Chiara Fogliano, Marco Trifuoggi, Maria Toscanesi, Anja Raggio, Simona Di Marino, Paola Venditti, Gianluca Fasciolo, Bice Avallone and Rosa Carotenuto
Toxics 2025, 13(8), 700; https://doi.org/10.3390/toxics13080700 - 20 Aug 2025
Viewed by 373
Abstract
Polystyrene microfragments are among the most common plastic pollutants globally. They significantly affect aquatic life, harming various organs and tissues. In this study, we examined the effects of 3 µm polystyrene beads (MPs, 20 µg/L) on development and yolk resorption in pre-feeding nauplii [...] Read more.
Polystyrene microfragments are among the most common plastic pollutants globally. They significantly affect aquatic life, harming various organs and tissues. In this study, we examined the effects of 3 µm polystyrene beads (MPs, 20 µg/L) on development and yolk resorption in pre-feeding nauplii of Artemia salina, a lecithotrophic crustacean used in toxicity testing. Results showed a reduced hatching rate, slower growth, and the onset of oxidative stress. Histological analysis revealed no significant morphological alteration; however, yolk platelets lost N-acetyl galactosamine (galNAc), and resorption was delayed. Lectin staining also showed a reduction in N-acetyl glucosamine (glcNAc) in the gut brush border, indicating impaired gut function. Gas chromatography detected the release of nanogram amounts of toxic volatile compounds (VOCs, ethylbenzene, xylene, benzaldehyde, and styrene) into the culture medium. In conclusion, the data demonstrate a delay in larval yolk resorption that can likely be attributed to the release of VOCs, which induce oxidative stress. Further research is urgently needed, given the potential biological and ecological implications of this finding. Full article
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