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Macro- and microplastics as complex threats to coral reef ecosystems
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This review summarizes the growing threat that plastic pollution, from large debris down to nanoplastics, poses to coral reef ecosystems worldwide. Researchers found that microplastics can impair coral feeding, skeletal formation, and nutrition, weakening reef health. The study calls for including plastic monitoring in reef conservation programs and promoting a circular economy to reduce plastic waste entering oceans.
The impacts of macroplastics (macro-), microplastics (MPs, <5mm), and nanoplastics (NPs, <100 nm) on corals and their complex reef ecosystems are receiving increased attention and visibility. MPs represent a major, contemporary, sustainability challenge with known and unknown effects on the ocean, and coral reef ecosystems worldwide. However, the fate and transport processes of macro-, MPs, and NPs and their direct and indirect impacts on coral reef ecosystems remains poorly understood. In this study, we verify and briefly summarize MPs distribution and pollution patterns in coral reefs from various geographical regions and discuss potential risks. The main interaction mechanisms show that MPs may substantially affect coral feeding performance, proper skeletal formation, and overall nutrition and, thus, there is an urgent need to address this rapidly growing environmental problem. From a management perspective, macro-, MPs, and NPs should, ideally, all be included in environmental monitoring frameworks, as possible, to aid in identifying those geographical areas that are most heavily impacted and to support future prioritization of conservation efforts. The potential solutions to the macro-, MP, and NP pollution problem include raising public awareness of plastic pollution, developing robust, environmental, conservation efforts, promoting a circular economy, and propelling industry-supported technological innovations to reduce plastic use and consumption. Global actions to curb plastic inputs, and releases of macro-, MP, and NP particles, and their associated chemicals, to the environment are desperately needed to secure the overall health of coral reef ecosystems and their inhabitants. Global scale horizon scans, gap analyses, and other future actions are necessary to gain and increase momentum to properly address this massive environmental problem and are in good accordance with several relevant UN sustainable development goals to sustain planetary health.
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Microplastics: impacts on corals and other reef organisms
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This study reviewed the growing body of evidence on how microplastics and nanoplastics affect corals and other reef organisms. Researchers found that these plastic particles can impair coral feeding, growth, and reproduction, and may worsen the effects of other stressors like ocean warming. The review highlights that plastic pollution represents an additional serious threat to already vulnerable reef ecosystems worldwide.
Microplastics: impacts on corals and other reef organisms
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This review examines the impacts of microplastics and nanoplastics on corals and reef organisms across all trophic levels. Researchers note that microplastics have been found in the water, sediments, and biota of every coral reef studied, but knowledge gaps remain for nanoplastic contamination due to detection limitations. The study highlights that few studies have examined how microplastic exposure interacts with other stressors like ocean acidification and rising temperatures, making comprehensive risk assessment difficult.
Research progress on the effects of microplastics on coral reef ecosystems
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This review synthesized current knowledge on microplastic pollution in coral reef ecosystems, covering global distribution of reef-associated microplastics, ingestion by reef organisms, and impacts on coral health. Microplastics were found to impair coral feeding, disrupt zooxanthellae, transfer toxins to reef organisms, and potentially contribute to coral reef degradation.
Microplastics in Natural and Artificial Reefs
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This review examines microplastic pollution in both natural and artificial reef ecosystems, summarizing how plastic particles accumulate in reef structures, affect coral and associated organisms, and interact with other stressors threatening reef health worldwide.
Impacts of marine debris on coral reef ecosystem: A review for conservation and ecological monitoring of the coral reef ecosystem
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This review examines how marine debris, especially microplastics, threatens coral reef ecosystems by causing physical damage, spreading disease, and disrupting coral biology. Microplastics can stick to coral polyps and block their feeding, while also carrying harmful bacteria that cause coral diseases. Healthy coral reefs are vital for fisheries and coastal protection, so their decline from plastic pollution indirectly affects the millions of people who depend on reef ecosystems for food and livelihoods.
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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.