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61,005 resultsShowing papers similar to Impacts of microplastics and pesticides on Daphnia
ClearEffects of combined nutrient and pesticide exposure on algal biomass, and Daphnia magna abundance
This study tested how fertilizers and pesticides, alone and combined, affect tiny water organisms (Daphnia) and algae growth. Higher pesticide levels killed off Daphnia populations while allowing algae to bloom unchecked, disrupting the natural balance of aquatic ecosystems. While not directly about microplastics, these findings are relevant because microplastics in water can carry pesticide residues, potentially amplifying these harmful effects on the organisms that form the base of aquatic food webs.
Study of the toxicological effects of emerging contaminants on Daphnia similis associating polyethylene microplastics with the agrochemical imidacloprid.
Brazilian researchers tested the ecotoxicological effects of combining polyethylene microplastics with the insecticide imidacloprid on the freshwater crustacean Daphnia, finding combined exposures were more toxic than either pollutant alone. These results suggest that microplastics and pesticides together pose greater risks to aquatic organisms than studies of single pollutants indicate.
Combined toxicity of perfluoroalkyl substances and microplastics on the sentinel species Daphnia magna: Implications for freshwater ecosystems
This study tested how PFAS chemicals (common industrial pollutants) and PET microplastics affect water fleas, both alone and together. The combination caused worse developmental and reproductive problems than either pollutant alone, and organisms with prior chemical exposure history responded differently, showing that microplastics can amplify the harm of other environmental contaminants in ways that are difficult to predict.
Combined effect of microplastics and tire particles on Daphnia magna: Insights from physiological and transcriptomic responses
Researchers investigated the combined effects of microplastics and tire particles on the water flea Daphnia magna, finding that the mixture triggered significant oxidative stress at environmentally relevant concentrations. Transcriptomic analysis revealed upregulation of antioxidant and metabolic stress genes, while energy reserves like glycogen were affected. The study suggests that co-exposure to these common freshwater pollutants may pose greater ecological risks than either particle type alone.
Co-exposure of microplastics and 2-methoxy-1,4-naphthoquinone affects Daphnia magna depending on the developmental stage
Researchers studied the combined effects of microplastics and the plant-derived compound 2-methoxy-1,4-naphthoquinone on Daphnia magna, which represents a freshwater ecosystem stress scenario. Co-exposure produced effects that differed from either stressor alone, highlighting the importance of studying pollutant mixtures.
Effects of combined nutrient and pesticide exposure on algal biomass and Daphnia magna abundance
Researchers investigated the individual and combined effects of nutrients and pesticides on Daphnia magna abundance and algal biomass under controlled conditions, examining how agricultural inputs — fertilizers driving eutrophication and pesticides causing direct toxicity — interact to affect freshwater biodiversity.
Effects of Exposure to Cadmium, Microplastics, and Their Mixture on Survival, Growth, Feeding, and Life History of Daphnia magna
Researchers examined how polyethylene microplastics altered cadmium toxicity to Daphnia magna, finding that microplastic co-exposure modified cadmium bioavailability and affected survival, growth, feeding rates, and reproductive outcomes in this ecologically important species.
Ecotoxicology of microplastics in Daphnia: A review focusing on microplastic properties and multiscale attributes of Daphnia
This review synthesizes research on how microplastics affect Daphnia, a key organism in aquatic food webs, across individual, population, and community levels. Researchers found that the toxicity of microplastics to Daphnia depends heavily on the physical and chemical properties of the particles, and that combined exposure with other pollutants can produce more severe effects. The study highlights Daphnia as an important indicator species for understanding how microplastic pollution cascades through aquatic ecosystems.
Effects of microplastics on key reproductive and biochemical endpoints of the freshwater microcrustacean Daphnia magna
Researchers studied how microplastics affect reproduction and biochemistry in the freshwater water flea Daphnia magna, a widely used indicator species. They found that microplastic exposure led to changes in reproductive output and altered key biochemical markers in these small crustaceans. The study suggests that even tiny plastic particles can disrupt important biological functions in freshwater organisms that form the base of aquatic food webs.
Co-exposure of microplastics and 2-methoxy-1,4-naphthoquinone affects Daphnia magna depending on the developmental stage
Researchers examined the combined effects of microplastic exposure and the naturally occurring chemical 2-methoxy-1,4-naphthoquinone on Daphnia magna, investigating how plastic particles interact with an invasive species-linked chemical stressor in freshwater. Co-exposure produced different effects than either stressor alone, illustrating how microplastics complicate toxicity in multi-stressor freshwater environments.
Effects of Microplastics on Reproduction and Growth of Freshwater Live Feeds Daphnia magna
Researchers found that microplastic exposure negatively affected reproduction and juvenile growth in Daphnia magna, a key freshwater zooplankton species, with effects worsening at higher concentrations and posing risks for aquatic food chains.
Review on the ecotoxicological impacts of plastic pollution on the freshwater invertebrate Daphnia
This review examines the ecotoxicological impacts of plastic pollution on the freshwater invertebrate Daphnia, a widely used model organism. Researchers highlight that microplastics affect Daphnia reproduction, growth, and survival, and that chemicals leaching from plastics may contribute additional toxic effects that transfer through food webs.
Assessment of intake and effect of microplastics and its combination with metals in experimental (Daphnia magna) and environmental conditions (freshwater fish)
Researchers assessed the intake and effects of microplastics and their combination with metals using Daphnia magna as an experimental model and freshwater fish under environmental conditions, investigating how microplastics adsorb and transport harmful metals in freshwater systems.
Ecological risks of combination of multiple pollutants at environmentally relevant concentrations: Insights from the changes in life history traits, gut microbiota, and transcriptomic responses in Daphnia magna
Researchers exposed Daphnia magna to a combination of 11 pollutants including microplastics, antibiotics, and heavy metals at environmentally relevant ng/L–μg/L concentrations and found significant reductions in heart rate, reproduction, and lifespan, plus gut microbiota and transcriptomic changes — effects that single-pollutant studies would not predict.
Combined Effect of Polystyrene Particles and Copper Ions on the Vital Parameters of Daphnia Magna in a Series of Generations
Researchers studied the combined effects of polystyrene microplastics and copper ions on Daphnia magna over four generations using both short-term and continuous exposure designs. Toxicity was greater under combined exposure and increased across generations, suggesting cumulative intergenerational harm from mixed pollutant stress.
Short- and long-term single and combined effects of microplastics and chromium on the freshwater water flea Daphnia magna
Researchers investigated the individual and combined effects of microplastics and chromium on the water flea Daphnia magna in both short- and long-term experiments. They found that microplastics interacted with chromium, reducing its concentration in water, and that co-exposure caused acute toxicity but lacked the chronic effects seen with chromium alone. The study suggests that microplastics may alter the bioavailability and toxicity of metal pollutants in freshwater environments.
Combined toxic effects of polystyrene microplastic and benzophenone-4 on the bioaccumulation, feeding, growth, and reproduction of Daphnia magna
Researchers examined the combined toxic effects of polystyrene microplastics and the UV filter chemical benzophenone-4 on water fleas over 21 days. They found that exposure to both contaminants together caused greater harm to feeding, growth, and reproduction than either pollutant alone. The study demonstrates that microplastics and personal care product chemicals can interact to amplify their negative effects on freshwater organisms.
Long-term adverse effects of microplastics on Daphnia magna reproduction and population growth rate at increased water temperature and light intensity: Combined effects of stressors and interactions
Researchers investigated how increased water temperature and light intensity affect the long-term toxicity of microplastics to the water flea Daphnia magna. They found that microplastics caused mortality, reduced growth, and decreased reproduction across all conditions, but these effects were significantly worsened by both higher temperature and brighter light. The study suggests that climate change factors may synergistically amplify the harmful impacts of microplastic pollution on freshwater zooplankton.
An Ecotoxicological Assessment of the Impact of Microplastics on Daphnia magna using Acute and Chronic Toxicity Endpoints with a Focus on Stress Behaviour
Laboratory tests on Daphnia magna (a key freshwater zooplankton) found that polyethylene microbeads alone at environmentally realistic concentrations did not cause significant harm, but when combined with the antimicrobial chemical triclocarban, microplastics appeared to increase toxicity. This suggests microplastics may act as carriers that enhance the effects of co-pollutants even when the plastics themselves seem harmless in isolation.
An Ecotoxicological Assessment of the Impact of Microplastics on Daphnia magna using Acute and Chronic Toxicity Endpoints with a Focus on Stress Behaviour
Laboratory tests on Daphnia magna (a key freshwater zooplankton) found that polyethylene microbeads alone at environmentally realistic concentrations did not cause significant harm, but when combined with the antimicrobial chemical triclocarban, microplastics appeared to increase toxicity. This suggests microplastics may act as carriers that enhance the effects of co-pollutants even when the plastics themselves seem harmless in isolation.
Individual and combined multigenerational effects induced by polystyrene nanoplastic and glyphosate in Daphnia magna (Strauss, 1820)
Researchers investigated the individual and combined effects of polystyrene nanoplastics and the herbicide glyphosate on the freshwater crustacean Daphnia magna across multiple generations. They found synergistic toxicity when the two contaminants were combined, increasing immobility and reactive oxygen species production. Notably, parental exposure to the mixture caused reproductive effects that persisted into subsequent generations even without continued exposure.
Toxicological interactions induced by chronic exposure to gold nanoparticles and microplastics mixtures in Daphnia magna
This study examined the combined toxicological effects of gold nanoparticles and microplastics through chronic exposure, finding interactive effects that differed from either contaminant alone, emphasizing the importance of studying multiple stressors together.
Short-term and long-term effects of microplastics and organic UV-filters on the invertebrate model species Daphnia magna
Researchers exposed water fleas to polystyrene microplastics, a mixture of UV-filter chemicals found in sunscreens, or both over 21 days. The microplastics alone reduced body size and reproduction, while combined exposure with UV-filters further impaired swimming behavior and offspring production. The study highlights that microplastics and common personal care product chemicals can interact to create compounding negative effects on freshwater organisms.
The synergistic effect of mono and co-exposure of microplastic suspensions on Daphnia magna’s survival, population density, reproduction rate & swimming behavior.
When water fleas (Daphnia magna) were exposed to mixtures of HDPE, LDPE, and polypropylene microplastics together, the combined toxicity was substantially greater than any single polymer alone, with the mixture LC50 dropping to 77 mg/L compared to 109–123 mg/L for individual plastics. This synergistic effect — reducing survival, reproduction, and normal swimming behavior — is an important finding because organisms in nature encounter mixtures of plastic types, not just one at a time.