Papers

61,005 results
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Article Tier 2

Polystyrene microplastics exposure in freshwater fish, Labeo rohita: evaluation of physiology and histopathology

Researchers fed freshwater fish varying levels of polystyrene microplastics for 90 days and found dose-dependent damage to blood health, growth, and organ tissues. Higher microplastic concentrations caused more severe harm to the liver, kidneys, gills, and intestines. The study highlights that microplastics in freshwater systems can accumulate in fish and cause significant health problems, raising concerns about food safety for communities that rely on freshwater fish.

2025 Scientific Reports 7 citations
Article Tier 2

Eco Toxicological Assessment of Micro Plastic Ingestion in Freshwater Fishes: A Case Study on Bioaccumulation and Histopathological Alterations

Researchers assessed microplastic accumulation in three freshwater fish species (tilapia, rohu, catla) from a major river system, finding microplastics in gastrointestinal tracts and associated histopathological damage in gills, liver, and kidneys.

2025 Asian Journal of Research in Zoology
Article Tier 2

Chronic Toxicity of Microplastics on Fish (Labeo rohita) and Their Impact on the Freshwater Ecosystem: A Case Study of Gangasagar Pond, Darbhanga, India

Researchers investigated microplastic contamination in Gangasagar Pond in India, finding fibers as the most common type, primarily from domestic waste and discarded packaging. Fish in the pond showed microplastics lodged in their gill chambers and mouths, and tissue analysis revealed damage to the stomach and intestines. The study suggests that microplastic pollution in freshwater ecosystems can directly harm fish health through ingestion and physical contact.

2024 UTTAR PRADESH JOURNAL OF ZOOLOGY 5 citations
Article Tier 2

ASSESSING HEPATIC TOXICITY IN Labeo rohita (Rohu Fish) INDUCED BY MICROPLASTIC POLLUTION IN FRESHWATER ECOSYSTEMS OF SARGODHA, PUNJAB

This study assessed microplastic pollution in freshwater ponds in Sargodha, Punjab, Pakistan, and investigated physiological effects on Labeo rohita (Rohu fish). PE, PP, and PS microplastics were found in the ponds, and fish showed elevated oxidative stress and hepatic dysfunction consistent with microplastic-induced toxicity.

2025 Journal of medical & health sciences review.
Article Tier 2

Toxic effects of microplastic (polyethylene) exposure: Bioaccumulation, hematological parameters and antioxidant responses in crucian carp, Carassius carassius

Researchers exposed crucian carp to polyethylene microplastics at various concentrations and found that the particles accumulated in tissues including gills, gut, and liver. The microplastics altered blood cell counts and disrupted the fish's antioxidant defense system in a dose-dependent manner. The study suggests that even common polyethylene microplastics can cause measurable biological harm in freshwater fish.

2023 Chemosphere 35 citations
Article Tier 2

Oxidative Stress Induced by Exposure of Microplastics in Labeo Rohita

Exposure to low-density polyethylene (LDPE) microplastics caused dose-dependent oxidative stress in rohu fish (Labeo rohita) over 45 days. The findings suggest that microplastic contamination in aquatic environments can harm fish health through increased free radical damage.

2021 2 citations
Article Tier 2

Ecotoxicological effects of low-density polyethylene microplastic on Heteropneustes fossilis: behavioral, hematological, biochemical, and histopathological impacts

Scientists exposed freshwater fish to tiny plastic particles (microplastics) from everyday items like plastic bags and found they caused serious health problems including blood disorders, organ damage, and weakened immune systems. The higher the amount of plastic particles, the worse the damage became to vital organs like gills, intestines, and liver. This matters because these same microplastics are found throughout our food chain and water supply, raising concerns about potential health risks for humans who consume contaminated fish and water.

2026 Frontiers in Aquaculture
Article Tier 2

Effect of plastic microbeads on the development of roho (Labeo rohita)

Researchers fed roho fish (Labeo rohita) varying doses of plastic microbeads over 120 days and found that ingesting microplastics directly stunted their growth, with higher concentrations causing greater harm — providing evidence that microplastic pollution can impair the health of freshwater fish species.

2024 The Egyptian Journal of Aquatic Research 2 citations
Article Tier 2

Assessment of dietary polyvinylchloride, polypropylene and polyethylene terephthalate exposure in Nile tilapia, Oreochromis niloticus: Bioaccumulation, and effects on behaviour, growth, hematology and histology

Nile tilapia fish fed three common types of microplastics (PVC, polypropylene, and PET) showed reduced growth, abnormal behavior, blood cell damage, and tissue damage in their gills, liver, and intestines. The harmful effects increased with higher doses of microplastics and varied by plastic type. Since tilapia is one of the most widely consumed fish globally, these findings raise concerns about the health of fish that may carry microplastic contamination to human diets.

2024 Environmental Pollution 22 citations
Article Tier 2

[Effects of Microplastic Exposure on Crucian Growth, Liver Damage, and Gut Microbiome Composition].

Researchers exposed crucian carp to varying concentrations of polyethylene microplastics in feed for 30 days and found that low-concentration exposure increased body weight while higher concentrations caused liver damage and altered gut microbiome composition, suggesting dose-dependent effects.

2022 PubMed 2 citations
Article Tier 2

Microplastic Contamination in Edible and Inedible Tissues of Labeo rohita Across Rajasthan and Haryana: A Comparative Assessment

Researchers analyzed microplastic contamination in edible (muscle and skin) and inedible (gut and gills) tissues of freshwater rohu fish (Labeo rohita) from 10 locations in Rajasthan and Haryana, India. MPs were found in all tissue types, including muscle and skin consumed by humans, indicating a food safety concern in these regions.

2025 Toxicology International
Article Tier 2

The effects of exposure to microplastics on grass carp (Ctenopharyngodon idella) at the physiological, biochemical, and transcriptomic levels

Researchers exposed grass carp to microplastics at two concentrations for 21 days and observed liver damage, inhibited growth, and increased oxidative stress. Transcriptome analysis revealed over 1,500 differentially expressed genes related to immune response, metabolism, and cellular stress pathways. The study suggests that microplastic exposure can trigger broad physiological and molecular disruptions in freshwater fish.

2021 Chemosphere 54 citations
Article Tier 2

Deleterious Effects of Polypropylene Microplastic Ingestion in Nile Tilapia (Oreochromis niloticus)

Researchers fed Nile tilapia daily doses of polypropylene microplastics for 30 days and observed significant health effects including changes in blood cell counts, altered gut bacteria, and tissue damage to the intestines and liver. The higher dose group showed more pronounced effects, including elevated inflammatory markers and signs of oxidative stress. The study provides evidence that chronic ingestion of microplastics commonly found in aquatic environments can cause meaningful harm to a widely consumed fish species.

2023 Bulletin of Environmental Contamination and Toxicology 19 citations
Article Tier 2

Adverse effects of polystyrene microplastics in the freshwater commercial fish, grass carp (Ctenopharyngodon idella): Emphasis on physiological response and intestinal microbiome

Researchers exposed grass carp to different sizes and concentrations of polystyrene microplastics for up to 14 days, followed by a depuration period, and assessed physiological and intestinal microbiome effects. The study found that microplastics caused histological damage, oxidative stress, and shifts in gut microbial communities, with smaller particles and higher concentrations producing more severe effects.

2022 The Science of The Total Environment 70 citations
Article Tier 2

Occurrence of plastics and their characterization in wild caught fish species (Labeo rohita, Wallago attu and Mystus tengara) of River Ganga (India) compared to a commercially cultured species (L. rohita)

Researchers analyzed nine wild-caught fish species from two sites along the River Ganga in Patna, India, detecting plastics in gastrointestinal tracts, liver, gills, and muscles, providing rare data on plastic contamination in one of the world's most polluted rivers.

2023 Environmental Pollution 26 citations
Article Tier 2

Dose-Dependent Cytotoxicity of Polypropylene Microplastics (PP-MPs) in Two Freshwater Fishes

Researchers fed zebrafish and freshwater perch polypropylene microplastics at low and high doses and measured cellular damage in liver and gill tissues. They found dose-dependent toxicity including DNA damage up to 18-fold higher than controls, lipid peroxidation, and disrupted metabolism of key compounds like tryptophan. The study provides evidence that polypropylene microplastic ingestion causes significant cellular harm to freshwater fish in a dose-dependent manner.

2022 International Journal of Molecular Sciences 56 citations
Article Tier 2

Biochemical, Genotoxic and Histological Implications of Polypropylene Microplastics on Freshwater Fish Oreochromis mossambicus: An Aquatic Eco-Toxicological Assessment

Researchers fed polypropylene microplastics to freshwater tilapia and found they caused oxidative stress, DNA damage, and liver tissue deterioration, with more severe effects after 14 days compared to acute 96-hour exposure. The microplastics disrupted antioxidant enzyme systems and neurotransmitter activity in the fish. The study demonstrates that prolonged microplastic ingestion poses a significant ecological threat to freshwater fish species.

2023 Toxics 57 citations
Article Tier 2

Subacute toxic effects of polyvinyl chloride microplastics (PVC-MPs) in juvenile common carp, Cyprinus carpio (Pisces: Cyprinidae)

Juvenile common carp exposed to polyvinyl chloride microplastics showed dose-dependent toxic effects including tissue damage, oxidative stress, and altered biochemical markers over a subacute exposure period. The results indicate that PVC microplastics are harmful to freshwater fish at ecologically relevant concentrations.

2022 SHILAP Revista de lepidopterología 10 citations
Article Tier 2

Ecotoxicological Effects of Polystyrene Particles on Cyprinus carpio: A Laboratory Assessment

Researchers exposed common carp (Cyprinus carpio) to polystyrene particles in a controlled laboratory setting, measuring survival, growth, histological damage, and oxidative stress markers over a 30-day period. Exposed fish showed liver and gill tissue damage alongside elevated oxidative stress enzymes, demonstrating that polystyrene microplastics are harmful to freshwater fish at tested concentrations.

2024 1 citations