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Polystyrene Microspheres Increase Pb Bioaccumulation and Health Damage in the Chinese Mitten Crab Eriocheir Sinensis
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Effects of polystyrene nanoplastics and copper on intestinal tissue structure, biochemical indexes, and intestinal microflora of the Chinese mitten crab (Eriocheir sinensis)
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Researchers exposed Chinese mitten crabs to polystyrene nanoplastics and copper separately and in combination, finding that combined exposure caused greater oxidative stress and immune disruption than either alone, while also shifting gut bacteria composition in ways that may help the crab regulate the combined toxicity.
Polystyrene microplastics increase Pb bioaccumulation and health damage in the Chinese mitten crab Eriocheir sinensis
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Researchers found that polystyrene microplastics significantly increased the accumulation of lead in the tissues of Chinese mitten crabs when both pollutants were present together. The combined exposure caused more severe oxidative stress, disrupted fat metabolism, and increased liver damage compared to lead exposure alone. The study suggests that microplastics can act as carriers for heavy metals in aquatic environments, amplifying their toxic effects on commercially important seafood species.
Smaller fibrous microplastics exert stronger multi-level effects on the intertidal mud crab (Macrophthalmus japonicus)
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Tiny plastic fibers, smaller than a grain of rice, turned out to be more harmful to mud crabs than larger plastic fibers, causing more deaths, damage to their gills, and buildup in their bodies. Since these crabs are part of the food chain that ends up on our plates, this research suggests that smaller microplastic fibers in our oceans could pose a bigger risk to seafood safety than previously thought.
High Microplastic Contamination in Juvenile Tri-Spine Horseshoe Crabs: A Baseline Study of Nursery Habitats in Northern Beibu Gulf, China
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All juvenile tri-spine horseshoe crabs sampled from China's Beibu Gulf contained microplastics in their gastrointestinal tracts at concentrations higher than most other marine benthic invertebrates, despite relatively low microplastic levels in the sediments themselves. This finding from a living-fossil species that spends years in coastal nursery habitats signals widespread microplastic ingestion risk for marine invertebrates and the ecosystems that depend on them.
The Impact of Polystyrene Microplastics in Living Organisms; Environmental and Ecological Concerns
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This review comprehensively examined the environmental and ecological impacts of polystyrene microplastics, which readily adsorb both organic and inorganic pollutants and carry them into living organisms. Polystyrene is one of the most widely produced plastics globally, and its breakdown into microplastics creates particles that act as vectors for toxic chemicals in ecosystems and potentially in human bodies.
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