Fig. 3: The red coral (Corallium rubrum) in the experimental systems exposed to varying concentrations of microplastic particles after 10 days of experiment.
From: Multiple impacts of microplastics can threaten marine habitat-forming species

a Low, b medium, and c high concentrations of microplastic particles. Mucus release increases with increasing microplastic particles concentration. White circles indicate microplastics items trapped by mucus (polyethylene particles).