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61,005 resultsShowing papers similar to Microplastics in freshwater fishes: Occurrence, impacts and future perspectives
ClearOccurrence and Impacts of Microplastics in Freshwater Fish
This review summarizes research on microplastic occurrence in freshwater fish across multiple regions, examining ingestion rates, polymer types, and potential health effects. The authors highlight that freshwater fish are widely exposed to microplastics and call for more standardized monitoring to assess risks to fish and to people who eat them.
Microplasts in Freshwater Fish – Problems and Challenges
This review examines microplastic contamination of freshwater fish, covering ingestion evidence from over 150 species, the mechanisms of accumulation in gastrointestinal and other tissues, potential health impacts, and challenges in standardizing quantification methodologies.
Microplastics in Freshwater Systems: A Review on Its Accumulation and Effects on Fishes
This review covers the accumulation and effects of microplastics in freshwater fish, including how fish ingest them through feeding and the physical and chemical harm they can cause. Since many freshwater fish species are consumed by humans, the findings are relevant to food safety.
Toxicity of microplastics in fish: A short review
This short review summarizes current knowledge on microplastic occurrence in fish, covering sources and pathways of ingestion, impacts on fish physiology and behavior, and potential strategies for monitoring and reducing contamination.
Riverine microplastics and their interaction with freshwater fish
This paper reviews how microplastics enter river systems, how they move through waterways, and the risks they pose to freshwater fish. Researchers found that fish ingest microplastics that can accumulate in organs and carry toxic chemicals absorbed from the water. The review highlights that river fish, an important food source for many communities, face growing exposure to microplastics from urban runoff, wastewater, and agricultural sources.
Assessing the Effects of Microplastics on Freshwater Fish
This review examines the growing body of research on how microplastics affect freshwater fish, documenting evidence of ingestion, tissue damage, immune system impairment, and gastrointestinal obstruction across multiple species. Researchers highlight that microplastics from personal care products and degraded plastic goods are accumulating in freshwater ecosystems at concerning rates. The study warns that combined with existing threats like overfishing and habitat loss, microplastic pollution could accelerate population declines in vulnerable fish species.
Microplastics in Aquatic Environments and Their Toxicological Implications for Fish
This review summarizes research on microplastic occurrence in freshwater and marine environments and the toxicological risks they pose to fish, examining both direct physical effects and the role of plastics as vectors for chemical pollutants. The authors highlight that freshwater fish are particularly vulnerable given the high loads of microplastics in rivers receiving wastewater.
Comprehensive systematic review and meta-analysis of microplastic prevalence and abundance in freshwater fish species: the effect of fish species habitat, feeding behavior, and Fulton’s condition factor
A meta-analysis of freshwater fish across 42 studies found an average of 2.35 microplastic items per individual, with 80% of research focused on the gastrointestinal tract and 58% on river environments. Contrary to expectations, microplastic ingestion correlated with fish body physiology (size and weight) rather than feeding behavior or habitat, suggesting physical characteristics determine uptake more than ecological niche.
Microplastic Pollution – An Emerging Concern for Freshwaters: Effects and Overcome to Microplastic Pollution
This review addresses microplastic impacts on freshwater ecosystems, covering morphological and physiological toxicity to fish, food chain implications, and potential strategies to mitigate plastic pollution in urban water bodies.
Occurrence and characterization of microplastic content in the digestive system of riverine fishes
Researchers found microplastics in 93.8% of riverine fish examined, with polystyrene, polyethylene, and nylon being the most common polymer types concentrated near urban and industrial areas, and small particles (0.025-1 mm) predominating across species.
Do Freshwater Fish Eat Microplastics? A Review with A Focus on Effects on Fish Health and Predictive Traits of MPs Ingestion
This review examined microplastic ingestion by wild freshwater fish, finding that 257 species across 32 countries have been documented to consume microplastics. Researchers found that ingestion rates tend to increase with urbanization levels, and microplastic exposure has been linked to intestinal damage, oxidative stress, and altered behavior in fish. The evidence indicates that microplastic pollution in freshwater environments poses a widespread concern for fish health.
Effects of microplastics in freshwater fishes health and the implications for human health
This review examines how microplastics affect the health of freshwater fish, which are a major protein source for billions of people. Fish ingest microplastics that accumulate in their guts, gills, and tissues, leading to inflammation, oxidative stress, and disrupted growth. Since microplastics in fish tissue can transfer to humans through the food chain, this is relevant to both ecosystem and human health.
Exploring the ecotoxicological impacts of microplastics on freshwater fish: A critical review
This review examines how microplastics affect freshwater fish, which often mistake the tiny particles for food. Once ingested, microplastics do not stay in the gut -- they enter the bloodstream and spread to the gills, liver, brain, heart, and reproductive organs, causing hormonal, immune, neurological, and reproductive problems. Because microplastics build up in the food chain, the contamination of fish has broader implications for other animals and for people who eat freshwater fish.
Microplastics Contamination in Freshwater Fish – a Review
Researchers reviewed what is known about microplastic contamination in freshwater fish and found that fish ingest particles through their gut, gills, and skin, with the particles then distributing throughout body tissues and potentially reaching humans through seafood consumption — though inconsistent sampling methods make it difficult to compare findings across studies.
Microplastics as an Emerging Threat to the Freshwater Fishes: a Review
This review examines microplastics as an emerging threat to freshwater fishes, covering their sources from cosmetics and plastic debris fragmentation, routes of entry including wastewater treatment plants, and documented toxic effects on fish physiology and behavior.
Microplastics exposures of fish: internalization and effects on behavior and growth
This study examined how microplastics affect fish behavior and growth, finding that fish can ingest them but particles pass through the gut relatively quickly with limited effects at tested concentrations. The research highlights challenges in detecting microplastics in aquatic organisms and suggests risk depends heavily on exposure level and particle type.
Assessing and Managing Microplastic Risks in Freshwater Fisheries: Exposure Pathways and Toxicological Evidence
This review assessed microplastic exposure pathways and toxicological risks for freshwater fish in rivers, lakes, reservoirs, and aquaculture ponds, covering ingestion, trophic transfer, and chemical co-contaminant effects. The authors concluded that freshwater fish face substantial microplastic risk and outlined monitoring and risk management strategies for fisheries managers.
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.
Microplastics in Fish: A Comprehensive Review
This review synthesizes research on microplastics in fish, covering contamination sources, detection methods, and impacts on wild and farmed populations globally — and examining how plastic particles in fish tissues may transfer to humans through seafood consumption.
Microplastics in the Aquatic Environment Insights into Biological Fate and Effects in Fish
This review summarizes how fish are exposed to microplastics in aquatic environments, how plastic particles behave biologically once ingested, and what effects they have on fish health. It highlights significant knowledge gaps regarding long-term impacts on fish and, by extension, people who consume them.
Impacts of Microplastics as Contaminants in Freshwater Ecosystems and Human Food Chain
This review examines the impacts of microplastics on freshwater ecosystems and human food chains, tracing how plastic particles enter rivers and lakes, accumulate in fish and invertebrates, and transfer to humans through consumption of contaminated freshwater species.
Microplastic contamination in wild freshwater fish: Global trends, challenges and perspectives
This global review analyzed 144 studies on microplastic contamination in wild freshwater fish across 45 countries and found that 450 fish species were contaminated, including 35 species on the conservation Red List. Microplastics were most commonly found in the gastrointestinal tract, with fibers and fragments being the dominant shapes. The evidence indicates that freshwater fish worldwide are widely exposed to microplastic pollution, with potential implications for both aquatic ecosystems and human seafood consumption.
Global meta‐analysis reveals diverse effects of microplastics on freshwater and marine fishes
This systematic review and meta-analysis examines the effects of microplastics on fish in both freshwater and ocean environments. The findings show that microplastics reduce feeding, impair digestion, slow growth, and weaken immune function in fish, which is concerning because contaminated fish are a major food source for people worldwide.
Effect of biological and environmental factors on microplastic ingestion of commercial fish species
Researchers analyzed microplastic ingestion in commercially important fish species, evaluating how biological and environmental factors influence ingestion rates across 2,222 individual fish. The study assessed gastrointestinal tract contents to determine the extent and patterns of microplastic contamination. The findings suggest that both species-specific biology and environmental conditions play important roles in determining microplastic ingestion levels in commercial fish.