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Beyond Plastisphere Transfer, Deep Corals are Subject to Dysbiosis When Exposed to Plastics
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Beyond plastisphere transfer, deep corals are subject to dysbiosis when exposed to plastics
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Researchers investigated the impact of colonized macro- and microplastics on the microbiome of the cold-water coral Lophelia pertusa, finding that plastic exposure caused dysbiosis in the coral-associated bacterial community beyond simple plastisphere transfer, suggesting early biological impacts on deep-sea coral reefs.
Microplastic ingestion by scleractinian corals
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Researchers documented for the first time that scleractinian corals on Australia's Great Barrier Reef actively ingest microplastics from surrounding water, raising serious concerns that plastic pollution could impair the feeding and health of reef-building corals already stressed by warming oceans.
Plastics: An Additional Threat for Coral Ecosystems
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Plastic debris accumulating in oceans poses a compounding threat to coral reef ecosystems already stressed by climate change, ocean acidification, and overfishing. Microplastics can smother corals, introduce pathogens, and leach toxic chemicals, threatening the biodiversity and fisheries these reefs support.
Experimental exposure to microplastics does not affect the physiology of healthy or moderately bleached Anomastraea irregularis and Pocillopora verrucosa corals
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A 4-week feeding experiment found that exposure to polypropylene fragments and polyester fibers at environmentally relevant concentrations did not significantly affect the physiology, growth, or tissue composition of two coral species from South Africa. Corals were able to ingest and egest most microplastics within 18 hours, suggesting short-term resilience, though longer-term or higher-concentration effects on reef ecosystems remain an important open question.
Microplastics in the Ocean and their Consequences: Coral Reef Case Study
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"Researchers warn that microplastics accumulating in ocean ecosystems pose a cascading threat to coral reefs, which protect coastlines and produce oxygen, ultimately endangering marine biodiversity and human health through contaminated seafood." 2. 20129 — "Researchers review how microplastics permeate soils, water, and air worldwide, threatening plant, animal, and human health through multiple exposure pathways, while calling for coordinated societal action to reduce pollution at its source." 3. 34572 — "Researchers examine how widespread antibiotic use in medicine, farming, and aquaculture is contaminating water ecosystems with both antibiotic residues and antibiotic-resistance genes, raising concern that our water supplies may be accelerating the global resistance crisis." 4. 34169 — "Researchers document the pervasive contamination of human food supplies by microplastics, tracing how these particles enter crops, seafood, and packaged goods and what that means for what ends up on our plates every day." 5. 65196 — "Researchers discovered that the chemistry of iron minerals and pore water in underground aquifers significantly controls how far nanoplastic particles can travel, suggesting groundwater contamination from tiny plastics may be more widespread and persistent than previously understood." 6. 7192 — "Researchers found that combining microplastics from agricultural plastic film with zinc oxide nanoparticles from nano-fertilizers creates compounded stress in soil that harms mung bean growth, highlighting the underappreciated risks of mixing modern farming inputs." 7. 82335 — "Researchers systematically reviewed 180 studies to map which laboratory methods work best for identifying microplastics across different sample types, finding that density separation and organic digestion dominate sample preparation, a key step toward standardizing how the field measures contamination." 8. 82507 — "Researchers used computational fluid dynamics to model how microplastic shape affects where particles travel and settle in a tidal estuary, finding that particle shape is a critical but often overlooked factor in predicting environmental spread and cleanup planning." 9. 78334 — "Researchers outline the main sources of ocean microplastics — cosmetic microbeads, laundry fibers, and degrading plastic litter — and assess which reduction strategies, from filtration to policy, show the most promise for protecting marine life and human health." 10. 76444 — "Researchers review the global spread of microplastics through freshwater, oceans, and deep-sea sediments, identifying critical gaps in how scientists sample, identify, and assess the toxicity of these particles that must be closed to guide effective pollution policy." Once you grant Write permission, I can save these immediately.
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