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Microplastics in the coral reefs and their potential impacts on corals: A mini-review
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This mini-review summarizes the current state of microplastic pollution in coral reef ecosystems worldwide, covering abundance and distribution in seawater, sediments, and coral tissues. Researchers highlight how microplastics interact with corals through ingestion, adhesion, and tissue accumulation, potentially causing stress responses and bleaching. The study calls for more focused research on coral reef regions given the rapid increase in plastic consumption and the vulnerability of these critical ecosystems.
Plastic debris exists worldwide and research on microplastic pollution has gradually spread from the oceans to freshwater and terrestrial systems. Coral reefs not only serve as one of the most charismatic and biodiverse ecosystems on our planet, but also maintain the human harvesting of natural resources and livelihoods of hundreds of millions of people. However, the abundance and distribution characteristics of microplastics in coral reef systems receive little scientific attention. Meanwhile, the impacts of microplastics and nanoplastics on coral health and its potential mechanisms remain further studied. Herein, this review first summarized the current status of microplastics pollution in global coral reefs, especially included (i) abundance and distribution characteristics of microplastics in different media (e.g., seawater, sediment, corals), and (ii) possible sources of microplastics in reef regions. Furthermore, the main interaction mechanisms between microplastics and corals are highlighted. Following this, the direct or indirect impacts of microplastics on coral species are discussed. With the rapid increase of plastic consumption and background of pervasive global coral bleaching, research on marine microplastics must focus on the critical coral reef regions and include a comprehensive knowledge about the distribution, fate, and potential risks from an ecosystem perspective.
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A systematic review of microplastics in coral reef ecosystems: Abundance, distribution, toxicity, and future research directions
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This systematic review examined 125 studies on microplastic pollution in coral reef ecosystems. Corals are ingesting microplastics, which can cause tissue damage, stress responses, and impaired growth. Since coral reefs support roughly 25% of all marine species and many fisheries that feed coastal communities, their contamination with microplastics has far-reaching consequences for ocean health and food security.
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.
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: 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.
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.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.