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Eastern oyster vs. harmful bacteria, global climate change, and microplastics: Who wins?
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This study investigates how eastern oysters respond to the combined stressors of harmful bacteria, global climate change, and microplastic exposure, examining whether these threats compromise oyster immune and physiological function. The research is hosted on the Experiment platform for open scientific discovery.
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Effects of Vibrio vulnificus and Microcystis aeruginosa co-exposures on microplastic accumulation and depuration in the Eastern Oyster (Crassostrea virginica)
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Researchers studied how exposure to harmful bacteria, including Vibrio and Microcystis species, affects the ability of Eastern oysters to accumulate and clear out microplastics. They found that bacterial co-exposure reduced the oysters' filtration rates, causing them to retain more microplastics for longer periods. The study suggests that climate-driven increases in harmful bacteria could worsen the microplastic burden in commercially important shellfish.
Oysters under anthropogenic pressure: A cellular perspective on the interactive effects of microplastic pollution and climate change
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Researchers exposed oysters to microplastics under combined conditions of elevated temperature and ocean acidification, finding that climate change stressors significantly altered the cellular response to MP pollution. Temperature had a stronger effect than acidification, and combined stressors produced non-additive interactions in immune and oxidative stress markers.
"Groundbreaking study: Combined effect of marine heatwaves and polyethylene microplastics on Pacific oysters, Crassostrea gigas"
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Researchers studied the combined effects of marine heatwaves and polyethylene microplastics on Pacific oysters, an important aquaculture species. They found that elevated temperatures and microplastic exposure together caused greater stress responses than either factor alone, affecting the oysters' immune function and energy reserves. The study highlights the growing ecological risk from multiple environmental stressors acting simultaneously on marine organisms.
The effect of climate change and microplastics on the physiology of marine invertebrates of economic interest
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This thesis examines how climate change and microplastic pollution interact to affect the physiology of marine invertebrates important for aquaculture. Combined stressors were found to have compounding effects on organisms like mussels and oysters, threatening both ecosystems and food security.
Disruption of energy metabolism in the Pacific oyster (Crassostrea gigas) by co-exposure to aged microplastics and pathogenic Vibrio spp.
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Scientists found that when oysters are exposed to both aging microplastics and harmful bacteria (Vibrio) commonly found in seawater, the plastic particles act like tiny rafts that carry extra bacteria into the oysters, causing more damage and stress than either problem alone. This double threat disrupted the oysters' energy use so much that they made fewer eggs and sperm, threatening their ability to reproduce and sustain populations. Since oysters and other shellfish are a major food source for people, this research is an early warning sign that combined pollution stressors could impact seafood supplies and the marine ecosystems we depend on.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.