Impact of Plastic and Fiber Pollution on Aquatic Animals

A special issue of Fishes (ISSN 2410-3888). This special issue belongs to the section "Environment and Climate Change".

Deadline for manuscript submissions: closed (30 April 2026) | Viewed by 883

Special Issue Editors


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Guest Editor
Tecnológico Nacional de México, Instituto Tecnológico de Boca del Río, Carretera Veracruz, Boca del Río CP 94290, Mexico
Interests: toxicology of aquatic organisms; wasterwater treatment; emerging contaminants; microplastic; aquatic systems

E-Mail Website
Guest Editor
Tecnológico Nacional de México, Instituto Tecnológico de Boca del Río, Carretera Veracruz, Boca del Río CP 94290, Mexico
Interests: toxicology; water science and technology; emerging contaminants; microplastic; aquatic systems

E-Mail Website
Guest Editor
Facultad de Estudios Superiores "Iztacala", Universidad Nacional Autonoma de México (Fes-Iztacala -UNAM), Tlalnepantla 54090, Mexico
Interests: engineering; marine fisheries; marine and freshwater biology; aquatic science oceanography; water science and technology

Special Issue Information

Dear Colleagues,

This Special Issue, titled "The Impact of Plastic and Fiber Pollution on Aquatic Animals," will encompass work being conducted with all groups of aquatic organisms, with an emphasis on those that are part of the food chains of commercially important fish, mollusks, and crustaceans through coastal and industrial fishing and aquaculture. This Special Issue has been launched to establish the physiological and nutritional effects of plastic and fiber pollution on the quality and safety of these organisms for end consumers. It will provide clear evidence of the problem posed by the lack of wastewater treatment and solid waste management in coastal areas, highlighting the need for re-education and social engagement.

Prof. Dr. Fabiola Lango-Reynoso
Prof. Dr. María Del Refugio Castañeda-Chávez
Prof. Dr. Angel Moran-Silva
Guest Editors

Manuscript Submission Information

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Keywords

  • aquatic organisms
  • aquatic systems
  • emerging contaminants
  • microplastic
  • fiber
  • aquaculture
  • fischeries
  • aquatic health
  • safety

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Published Papers (1 paper)

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Research

18 pages, 4246 KB  
Article
Intestinal Accumulation of Polyester Microfibers Modulates HPG Axis Regulation and Oocyte Maturation in Zebrafish (Danio rerio)
by Seungjun Kim, Jin Namgung, Hye-na Moon and In-kyu Yeo
Fishes 2026, 11(3), 161; https://doi.org/10.3390/fishes11030161 - 11 Mar 2026
Viewed by 404
Abstract
Polyester microfibers (MF) are widespread in aquatic environments and increasingly recognized as an emerging factor affecting fish physiology. This study aimed to investigate the effects of intestinal accumulation of MF on gut tissue and cellular alterations, as well as on the HPG axis [...] Read more.
Polyester microfibers (MF) are widespread in aquatic environments and increasingly recognized as an emerging factor affecting fish physiology. This study aimed to investigate the effects of intestinal accumulation of MF on gut tissue and cellular alterations, as well as on the HPG axis and oocyte maturation in adult female zebrafish. Adult female zebrafish were exposed to environmentally relevant concentrations of MF (1000 and 3000 particles/L) for 14 days to examine endocrine-regulated physiological and reproductive responses. For comparative reference, a bisphenol A (BPA) exposure group was included to contextualize endocrine-related responses. MF exposure resulted in intestinal accumulation. Gene expression analyses showed increased expression of vtg1 and esr2a, along with decreased expression of gnrh3, fshβ, lhβ, cyp17, and cyp19a1, indicating altered regulation of the HPG axis and steroidogenic pathways. Ovarian histology revealed alterations in oocyte development, especially at the higher MF concentration, indicating that MF can affect endocrine-regulated physiology and reproduction in fish. Together, these findings provide new evidence that intestinal accumulation of microfibers, along with associated histological and transcriptional alterations, elicits estrogen-responsive physiological patterns that influence HPG axis regulation and oocyte maturation in fish. Full article
(This article belongs to the Special Issue Impact of Plastic and Fiber Pollution on Aquatic Animals)
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