During their mutualistic symbiotic relationship, corals and photosynthetic zooxanthellae exchange necessary organic nutrients and oxygen for inorganic nutrients and carbon dioxide, respectively. Scleractinian corals rely on an intracellular symbiosis with zooxanthellae to survive in shallow oceans with limited nutritional levels and high illumination . But the presence of MPs may interrupt the uptake of dinoflagellates Symbiodinium from the environment. Su et al. (2020) reported that MPs can inhibit the growth of mutualistic algae by modulating their metabolism and apoptosis. MPs not only irreversibly injure coral hosts, but they also imperil the lives of symbiotic algae and disturb the dynamics of the reef community. Plafcan and Stallings (2022) investigated the role of temperature and MPs on coral bleaching. Their findings show that higher temperatures have a detrimental effect on zooxanthellae densities, whereas MP does not influence coral bleaching or zooxanthellae densities.