Plastic pollution has become a significant environmental concern, with profound consequences for ecosystems worldwide, particularly for marine systems. Our study introduces 'plastiskin', a newly identified plastic pollution type encrusting intertidal organisms. Found on mussels and macroalgae, 'plastiskin' was composed of polypropylene and polyethylene. In mussels, the presence of 'plastiskin' was correlated with the absence of living endoliths in areas of the shells it covered, indicating a detrimental impact on the symbiotic endolithic community residing within mussel shells. In addition, we examined the potential negative effects of 'plastiskin' on the photosynthetic efficiency of macroalgae, however, these findings were inconclusive, stressing the need for further studies with larger sample sizes. Our baseline observations may serve as a groundwork for further investigation into the spatial distribution, temporal persistence, and ecological ramifications of 'plastiskin'. potential incorporation of 'plastiskin' as a new marine debris category into management and monitoring frameworks warrants serious consideration.
Keywords: Debris; Ecological effects; Intertidal; Macro alga; Marine; Mussels; Pollution.
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