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61,005 resultsShowing papers similar to The gonadal health status of Cyprinidae fish species collected from the river impacted by anthropogenic activities
ClearMicroplastics and heavy metals in freshwater fish: A comprehensive study of contamination and health risks
Researchers simultaneously assessed microplastic and heavy metal contamination in two fish species from Iran's Kashkan River, finding microplastics in 79% of the 48 specimens examined. The study also found heavy metal levels that exceeded safe limits, raising human health concerns for communities consuming these fish.
Role of Environmental Pollution in Altering Reproductive Cycles in Freshwater Fishes
Not relevant to microplastics — this review examines how industrial chemicals, pharmaceuticals, heavy metals, and pesticides in freshwater ecosystems disrupt reproductive cycles in fish, covering hormonal imbalances and population effects from endocrine-disrupting chemicals broadly.
Impact of Microplastics and Heavy Metals on Fish Health in the Kathajodi River, Odisha, India: A Micronucleus and Hematological Study
Fish from the Kathajodi River, Odisha showed hematological changes and elevated micronucleus frequencies linked to combined exposure to microplastics and heavy metals, indicating genotoxic stress from water pollution in this highly contaminated river.
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.
Health impacts of water pollution on fish in the Tigris River: A review
This review examines the health impacts of water pollution on fish in Iraq's Tigris River, covering degradation from industrial, agricultural, and domestic sources including heavy metals, pesticides, and microplastics, and consequences for fish populations supporting regional food security.
Interaction of Microplastic Presence and Oxidative Stress in Freshwater Fish: A Regional Scale Research, East Anatolia of Türkiye (Erzurum & Erzincan & Bingöl)
Researchers found microplastics in multiple fish species from rivers in eastern Turkey, with black fragments and fibers predominating, and detected elevated oxidative stress markers in fish liver tissue, with the highest reactive oxygen species levels in fish from Bingöl province.
Identifikasi Organ Reproduksi Jantan dan Betina pada Ikan Air Tawar
This Indonesian study identifies and compares the reproductive organs of freshwater fish species. The paper is focused on ichthyology and is not directly related to microplastic research.
Effects of microplastic exposure on the gonadal structure and reproductive success of Danio rerio (Teleostei: Cypriniformes)
This Brazilian study exposed zebrafish to two concentrations of microplastics for 30 days and assessed effects on gonadal structure and reproductive success using histology and hormone assays. Microplastic exposure disrupted reproductive biology in both males and females, raising concerns about how environmental microplastic contamination affects fish reproduction.
Environmental microplastics accumulate in gonads in a sex-dependent manner and alter reproductive success in zebrafish (Danio rerio)
Zebrafish exposed to environmentally sourced microplastics accumulated particles preferentially in the testes rather than ovaries, and males showed the highest gonadal microplastic loads along with PCB co-contaminant effects including inhibited apoptosis and hepatotoxicity.
Effect of Microplastic Exposures to The Male Gonad Histology of Catfish (Clarias gariepinus)
This study found that microplastic exposure damaged the reproductive organs of male catfish, causing structural changes in gonad tissue. The findings raise concerns about microplastic effects on fish reproductive health, which could impact aquaculture productivity and suggests that these particles may pose broader reproductive risks to aquatic species in our food supply.
Microplastic pollution and heavy metal risk assessment in Perca fluviatilis from Anzali wetland: Implications for environmental health and human consumption
Researchers analyzed heavy metals and microplastics in the tissues of European perch from Anzali Wetland in Iran and found contamination in muscle, liver, and gill samples. Microplastics were present in all fish examined, with fibers being the most common type. The study raises concerns about potential health risks for people who regularly consume fish from this polluted wetland.
Impact of Heavy Metals and Pesticide Contamination on Aquatic Environment and Fish Health: Challenges and Bioremediation Strategies
This review examines the impact of heavy metals and pesticide contamination on aquatic environments and fish health, with attention to how microplastics interact with these traditional pollutants. The authors discuss how pollution from industrialization affects fish physiology and disrupts ecosystem balance. The study highlights bioremediation approaches as sustainable strategies for addressing contaminated aquatic environments.
Morphophysiological characteristics of European perch (Perca fluviatilis Linnaeus, 1758) and rudd (Scardinius erythrophthalmus Linnaeus, 1758) from Kyiv water bodies
Researchers characterized the morphophysiological traits of European perch (Perca fluviatilis) in relation to microplastic exposure, documenting changes in organ structure and body condition. The findings suggest that microplastic contamination in freshwater environments can affect the physiology of an economically important fish species.
Histopathological Analysis of Hexavalent Chromium Toxicity to Ovary and Testis of Freshwater Food Fish, Channa punctatus (Bloch. 1793)
This paper is not about microplastics — it studies the toxic effects of hexavalent chromium (a heavy metal) on the reproductive organs of a freshwater fish species.
Microplastic Pollution at Different Trophic Levels of Freshwater Fish in a Variety of Türkiye`s Lakes and Dams
This study surveyed microplastic contamination in seven freshwater fish species from lakes and reservoirs across Türkiye, finding microplastic particles in the gastrointestinal tracts of all 406 fish examined. All ingested microplastics were fibres, predominantly blue in colour, suggesting textile sources. The broad geographic scope and 100% prevalence across species and water bodies indicate that microplastic contamination of freshwater fish is widespread throughout Türkiye, with implications for human exposure through fish consumption.
Subtle reproductive toxicity of microplastics in Pelteobagrus fulvidraco: Evidence from chronic exposure during gonadal development
Researchers chronically exposed yellow catfish from hatching through gonadal development to PE and PP microplastics and found marked histopathological damage to testicular tissue — especially from PE — without significant effects on survival or sex ratio, suggesting subtle reproductive toxicity that standard acute tests would miss.
Histological and Histochemical Effects of Microplastics Administration in Oreochromis niloticus Fingerlings
Researchers exposed Nile tilapia to two types of microplastics and examined histological and histochemical changes in gills, liver, and kidneys, finding tissue-level damage that demonstrates the harmful effects of microplastic ingestion on vital fish organs.
Microplastics in freshwater wild and farmed fish species of Bangladesh
Researchers evaluated microplastic contamination in freshwater wild and farmed fish species across multiple rivers and farms in Bangladesh, comparing contamination levels between wild-caught and aquaculture-raised fish of the same species.
Investigation of microplastic ingestion in commercial fish from Surabaya river, Indonesia
Researchers examined microplastic contamination in commercial fish species from the Surabaya River in Indonesia, a major urban waterway used for both clean water supply and fisheries. They found microplastics present in all fish studied, with variations in abundance linked to feeding behavior and habitat. The findings raise concerns about food safety for communities that rely on river fish as a dietary staple.
Microplastics induced endocrine disruption, alteration in testicular tissue in tilapia (Oreochromis niloticus) pre-fed on Amphora coffeaeformis
Researchers found that microplastic exposure caused hormonal disruption, reduced sperm quality, and damaged testicular tissue in male tilapia fish, but pre-feeding the fish with a microalgae feed supplement partially protected against these reproductive harms. The study suggests that dietary interventions may help mitigate microplastic toxicity in fish farmed for human consumption.
Histopathological Examination of Zebrafish Organs Under the Exposure to Microplastics
This study conducted histopathological examination of zebrafish organs following microplastic exposure, assessing tissue-level damage in multiple organ systems. The work is part of a broader Kazakhstani research program studying the effects of anthropogenic pollutants on commercial fish species.