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Oxidative stress and histological alterations in coral Briareum violacea co-exposed to ocean acidification and microplastic stressors

Marine Environmental Research 2025 1 citation ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 53 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Shu‐Ling Hsieh, Ya‐Ting Chen, Shu‐Ling Hsieh, Shu‐Ling Hsieh, Ya‐Ting Chen, De‐Sing Ding, De‐Sing Ding, Chiu‐Wen Chen, De‐Sing Ding, De‐Sing Ding, Shuchen Hsieh, De‐Sing Ding, Ya‐Ting Chen, De‐Sing Ding, De‐Sing Ding, De‐Sing Ding, Shu‐Ling Hsieh, Chiu‐Wen Chen, De‐Sing Ding, Chiu‐Wen Chen, Shu‐Ling Hsieh, Shuchen Hsieh, Shu‐Ling Hsieh, De‐Sing Ding, Reeta Rani Singhania, Chiu‐Wen Chen, Shu‐Ling Hsieh, Chiu‐Wen Chen, Cheng–Di Dong, Ya‐Ting Chen, Reeta Rani Singhania, Chiu‐Wen Chen, Ya‐Ting Chen, Cheng–Di Dong Reeta Rani Singhania, Reeta Rani Singhania, Ya‐Ting Chen, Cheng–Di Dong, De‐Sing Ding, Cheng–Di Dong Cheng–Di Dong Cheng–Di Dong Chiu‐Wen Chen, Chiu‐Wen Chen, Cheng–Di Dong, Chiu‐Wen Chen, Cheng–Di Dong, Shu‐Ling Hsieh, Chiu‐Wen Chen, De‐Sing Ding, Shuchen Hsieh, Shuchen Hsieh, Cheng–Di Dong, Cheng–Di Dong, Reeta Rani Singhania, Shuchen Hsieh, Shuchen Hsieh, Shuchen Hsieh, Shuchen Hsieh, Shuchen Hsieh, Shu‐Ling Hsieh, Reeta Rani Singhania, Shuchen Hsieh, Chiu‐Wen Chen, Chiu‐Wen Chen, Cheng–Di Dong, Cheng–Di Dong, Cheng–Di Dong, Cheng–Di Dong Cheng–Di Dong Cheng–Di Dong Cheng–Di Dong Reeta Rani Singhania, Shu‐Ling Hsieh, Cheng–Di Dong Cheng–Di Dong Shu‐Ling Hsieh, Chiu‐Wen Chen, Chiu‐Wen Chen, Ya‐Ting Chen, Cheng–Di Dong Cheng–Di Dong, Cheng–Di Dong, Chiu‐Wen Chen, Cheng–Di Dong, Cheng–Di Dong, Cheng–Di Dong, Chiu‐Wen Chen, Cheng–Di Dong Cheng–Di Dong Cheng–Di Dong Cheng–Di Dong, Chiu‐Wen Chen, Cheng–Di Dong, Cheng–Di Dong Cheng–Di Dong

Summary

Researchers exposed the coral Briareum violacea to combined ocean acidification and polyethylene microplastics for 21 days. The study found that the combination of lower pH and microplastic exposure caused greater oxidative stress and tissue damage than either stressor alone, suggesting that these two major environmental threats may have compounding effects on coral health.

Polymers

Study Type Environmental

Ocean acidification and microplastic pollution are two major stressors threatening coral health, yet their combined impacts and underlying mechanisms remain poorly understood. This study investigated the combined effects of ocean acidification and microplastics exposure to coral health. Briareum violacea was exposed to pH at 7.7, 7.5, and 7.3 combined with polyethylene microplastic (PE-MP; 50 mg/L) for 21 days. Polyp length and behavioral adaptability were monitored daily, while coral was collected on days 14 and 21 to assess Symbiodiniaceae density, antioxidant enzyme activity, and histopathological alterations. Results showed that combined exposure to different pH (7.7, 7.5, and 7.3) and PE-MP significantly impaired coral condition, reduced polyp length and Symbiodiniaceae density, along with intensified oxidative stress and tissue damage compared to single stressors. These findings underscore coral vulnerability under combined stressors, emphasizing the necessity for future research to address long-term ecological consequences and resilience mechanisms in coral reef ecosystems.

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