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61,005 resultsShowing papers similar to Microplastics in Limnic Ecosystems - Investigation of Biological Fate and Effects of Microplastic Particles and Associated Contaminants in Zebrafish (Danio rerio)-
ClearRethinking the relevance of microplastics as vector for anthropogenic contaminants: Adsorption of toxicants to microplastics during exposure in a highly polluted stream - Analytical quantification and assessment of toxic effects in zebrafish (Danio rerio)
Researchers exposed microplastics in a highly polluted stream to assess their role as contaminant vectors, then tested effects on zebrafish, finding that naturally contaminated microplastics had limited additional toxicity compared to the polluted water itself.
Zebrafish as Model Organism in Aquatic Ecotoxicology: Current Trends and Future Perspectives
This review assessed zebrafish as model organisms for aquatic ecotoxicology, summarizing current trends and future directions in using Danio rerio to study the effects of environmental pollutants including microplastics. The authors highlight the zebrafish model's utility for integrating molecular, cellular, and whole-organism responses.
Microplastics in freshwater ecosystems : effects and drivers
This thesis assessed how microplastic exposure affects freshwater microorganisms, macroinvertebrates, and other organisms in freshwater ecosystems, finding that microplastics are a pervasive contaminant of freshwater environments with unclear but potentially significant ecological impacts.
Sorbed environmental contaminants increase the harmful effects of microplastics in adult zebrafish, Danio rerio
Researchers found that microplastics carrying sorbed environmental contaminants (DDE, BP-3, chlorpyrifos) caused greater harmful effects on adult zebrafish health and behavior than pristine microplastics alone, demonstrating their role as pollutant vectors.
Effects of pristine or contaminated polyethylene microplastics on zebrafish development
Researchers examined the effects of both pristine and pollutant-contaminated polyethylene microplastics on zebrafish development through chronic exposure. The study assessed how microplastics, both alone and as carriers of adsorbed organic pollutants, affect developing fish. The findings provide new insights into how contaminated microplastics may create additional routes for toxic compounds to enter aquatic food webs.
Structure activity toxicity of different micro-nanoplastics on developing Zebrafish (Danio rerio) based on individual polymer chemistry
This dissertation examined the toxicity of individual polymer chemistries—rather than generic microplastic mixtures—on zebrafish embryos and larvae, finding polymer-specific differences in developmental toxicity, behavioral disruption, and biochemical pathway activation across multiple plastic types.
Combined effects of microplastics and chemical contaminants on the organ toxicity of zebrafish ( Danio rerio )
Researchers studied the combined effects of microplastics and chemical contaminants like PCBs and methylmercury on zebrafish organs over three weeks of exposure. They found that microplastics carrying adsorbed contaminants produced the most significant effects, particularly on the liver, compared to either microplastics or contaminants alone. The results indicate that microplastics may act as carriers that increase the delivery of harmful chemicals to organisms' tissues.
O Modelo Zebrafish e sua Contribuição ao Meio Ambiente
This Brazilian review examined zebrafish as a model organism for testing water quality and the toxicity of micropollutants including microplastics in wastewater. Zebrafish are increasingly used as a standard test system for evaluating the biological effects of microplastic exposure because their genetics and physiology closely mirror human responses.
Effect assessment of nano- and microplastics in freshwater ecosystems
This doctoral thesis assessed the effects of nano- and microplastics on freshwater ecosystems, from individual species to community-level impacts. Freshwater sediments are known to accumulate these particles, and the research addresses critical gaps in understanding how long-term exposure at realistic concentrations affects aquatic communities.
Effects of microplastics on freshwater organisms: A laboratory approach
This thesis systematically examined how microplastics harm freshwater organisms both physically and by acting as carriers for chemical pollutants. The research found that both the physical presence of microplastics and the chemicals associated with them can negatively affect freshwater species.
Study of the effects of nanoplastics ingestion in a freshwater fish ( Danio rerio )
Researchers exposed zebrafish to polystyrene nanoplastics and found evidence of intestinal damage, oxidative stress, and behavioral changes. The study adds to growing evidence that nanoplastics in freshwater environments can harm fish health, with potential implications for the health of ecosystems and fish-eating humans.
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.
The Role of Synthetic Polymers in the Aquatic Environment and Its Implications in Danio Rerio as a Model Organism
Exposing zebrafish to polystyrene microplastics combined with silver nanoparticles caused significantly more oxidative damage, tissue injury in gills and intestines, and higher mortality than either contaminant alone. The study demonstrates that microplastics can act as carriers that enhance the toxicity of co-pollutants like silver nanoparticles, a combination effect that is highly relevant to understanding real-world aquatic contamination where multiple pollutants co-occur.
Ingestão e efeitos morfofisiológicos dos microplásticos em espécies de peixes da Amazônia Central
This Brazilian thesis investigates microplastic ingestion and its effects on fish from the Amazon basin, one of the world's most biodiverse freshwater systems. Given that aquatic organisms in even remote areas are exposed to microplastics, the research highlights risks to Amazon fish diversity and the potential for microplastics to disrupt aquatic food webs in previously pristine ecosystems.
Environmental Impact of Microplastics in Aquatic Ecosystems: A Review of Current Research and Future Directions
This review examines microplastic pollution in aquatic ecosystems, covering chemical, biological, and ecological processes beyond simple physical contamination and identifying priority areas for future research directions.
Uptake, removal and trophic transfer of fluorescent polyethylene microplastics by freshwater model organisms: the impact of particle size and food availability
Researchers used fluorescent polyethylene microplastics of different sizes to track how they move through a freshwater food chain from algae to water fleas to zebrafish. They found that smaller particles were ingested and transferred more readily between organisms, and that food availability influenced how many microplastics accumulated. The study demonstrates that microplastics can move up the food chain and that particle size plays a key role in how they are transported through aquatic ecosystems.
Comprehensive review of ecological risks and toxicity mechanisms of microplastics in freshwater: Focus on zebrafish as a model organism
This comprehensive review examines how microplastics affect zebrafish, a widely used laboratory model, covering impacts on the gut, liver, reproductive system, nervous system, and immune function. Researchers found that microplastics can cause oxidative stress, inflammation, and disruption of gut bacteria across multiple organ systems. The review highlights that zebrafish studies provide valuable insights into the biological mechanisms by which microplastics may affect freshwater organisms and, potentially, human health.
Accumulation and Distribution of Fluorescent Microplastics in the Early Life Stages of Zebrafish
Researchers tracked the accumulation and distribution of fluorescent microplastics in early life stages of a freshwater organism, finding that microplastics were taken up and distributed across body tissues. The results help explain how microplastics accumulate in young aquatic organisms and potentially affect their development.
Research Progress of Zebrafish Model in Aquatic Ecotoxicology
This review examines how zebrafish are used as model organisms to study the toxic effects of environmental pollutants in water, including microplastics. Zebrafish are ideal because they reproduce quickly, are inexpensive to maintain, and allow researchers to study effects at the genetic, cellular, and whole-organism level. The paper provides a reference guide for scientists choosing model animals for aquatic toxicology research.
Biological alterations of polyvinyl chloride (PVC) microplastics on Danio rerio at environmentally relevant concentrations – risk assessment
Researchers assessed the toxic effects of polyvinyl chloride microplastics at environmentally relevant concentrations on zebrafish over 20 days. The study found that PVC microplastics accumulated in the gastrointestinal tract and caused biological alterations including changes in growth, behavior, and tissue integrity, highlighting potential ecological risks at realistic exposure levels.
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.
The Role of Danio rerio in Understanding Pollutant-Induced Gut Microbiome Dysbiosis in Aquatic Ecosystems
This review examines how freshwater pollutants—including pesticides, heavy metals, antibiotics, dyes, and microplastics—disrupt gut microbiome composition in zebrafish and other aquatic animals. It highlights the zebrafish model as a key tool for understanding pollutant-driven microbiome dysbiosis and its metabolic consequences.
Investigations into the Roles of Organisms on Environmental Plastic Pollution
This thesis investigated the roles of organisms in environmental plastic pollution, examining how marine and freshwater animals ingest microplastics and how they may transfer them through food webs. The work contributes to understanding the ecological consequences of plastic contamination in aquatic ecosystems.
Qualitative and quantitative analysis of accumulation and biodistribution of polystyrene nanoplastics in zebrafish (Danio rerio) via artificial freshwater
Researchers developed MALDI-TOF mass spectrometry methods to accurately track polystyrene nanoplastic accumulation and biodistribution across zebrafish tissues after waterborne exposure, enabling precise quantitative analysis of nanoplastic uptake.