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Microplastics primarily provide habitats for benthic microalgae in Fujian coastal waters of China
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Researchers analyzed epimicroplastic microalgae (EMP-MA) communities colonizing microplastics in three bays of Fujian Province, China, finding that benthic microalgae dominated EMP-MA communities despite being underrepresented in surrounding planktonic communities. The results suggest that microplastics primarily serve as habitats for benthic microalgae and may expand their spatial distribution beyond typical bottom-dwelling zones.
Microplastics (MPs) serve as habitats and vectors for microalgae-termed epimicroplastic microalgae (EMP-MA). This study analyzed the community structure and diversity of EMP-MA in three bays of Fujian Province, and compared them with planktonic microalgae (PM) communities. Results showed both EMP-MA and PM communities mainly comprised diatoms and dinoflagellates, but differed significantly. Specifically, the relative abundance of benthic microalgae in EMP-MA communities was significantly higher than that in PM communities, with all dominant species of EMP-MA communities being benthic species. These results meant that MPs primarily provide habitats for benthic microalgae and may expand their spatial distribution. In addition, environmental variables exerted weaker influences on EMP-MA than on PM, which might be attributed to the buffering effects of biofilm. This study holds significance for deepening the understanding of the vertical distribution dynamics of marine microalgae and the effects of MPs on marine biological processes.
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Researchers analyzed the species diversity and community structure of microalgae colonizing microplastics (epimicroplastic microalgae) versus planktonic microalgae communities in Luoyuan Bay, China. They found that microplastic-colonizing communities had higher species richness (73 vs. 56 species) but significantly lower evenness and diversity indices, with diatoms dominant in both communities but with distinct species compositions.
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Researchers explored microbial communities colonizing microplastics in coastal environments of Japan, comparing bacterial and fungal communities across different plastic types, water, sediment, and sand. The study found that while microbial communities varied by sample type and location rather than plastic shape, microplastics harbored hydrocarbon-degrading organisms as well as potential pathogens, highlighting the ecological significance of plastic-associated biofilms.
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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.