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The Effects of Polyethylene and Polypropylene Microplastics on Daphnia dentifera
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Researchers examined the effects of polyethylene and polypropylene microplastics on the body size, swim speed, and clonal growth rate of the freshwater crustacean Daphnia dentifera, assessing sublethal physiological and behavioural impacts of two common plastic polymer types.
Research Question: What are the effects of polyethylene and polypropylene microplastics on the size, swim speed, and clonal growth rate of Daphnia dentifera?
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The effect of microplastics on the speed, mortality rate, and swimming patterns of Daphnia Magna
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This study compared how polystyrene and polyethylene microplastics affect the swimming speed, mortality, and movement patterns of Daphnia magna water fleas, finding both plastics caused behavioral changes. Daphnia are key animals in freshwater food webs, and microplastic-induced behavioral impairment could affect their role in aquatic ecosystems.
Ingestion and impacts of water-borne polypropylene microplastics on Daphnia similis
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Researchers found that acute exposure to polypropylene microplastics caused immobility in Daphnia similis, increased reactive oxygen species production, elevated antioxidant enzyme activity, and decreased neurotransmitter function.
Alterations in swimming behavior of Daphnia exposed to polymer and mineral particles: towards understanding effects of microplastics on planktonic filtrators
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This study examined how microplastics affect the swimming behavior of Daphnia (water fleas), finding that these filter-feeders are impaired even when exposed to plastic particles of low nutritional value — suggesting microplastics can compromise aquatic invertebrate health through mechanisms beyond simple malnutrition.
Effects of Microplastics on Aquatic Animals: A Case Study on Daphnia
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Researchers exposed Daphnia water fleas to ten types of virgin plastic materials (HDPE, LDPE, PA, PVC, PP, PS, TPU, etc.) and measured survival, reproduction, and behavioral endpoints, finding that PVC and certain engineering plastics caused the greatest acute toxicity while softer polyolefins had lower effects.
Effects of Microplastics on Reproduction and Growth of Freshwater Live Feeds Daphnia magna
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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.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.