Sea anemones, which are close relatives of corals, are uptaking microfibers released from our laundry. Anemones that have been bleached due to warm waters expel these microfibers more slowly than healthy anemones.
"[Because] the shape of microfibers differ from other types of microplastic the effects ... [on] marine organisms may also be different,"says Carnegie Institution for Science and lead author of this study,
"We will only be able to understand these differences if we perform studies with microfibers separately from microplastics."they can also become bleached , lose their coloration, and evict the microscopic algae they harbor that provide them with nutrients. In this study, researchers fed bleached and healthy anemones nylon, polyester, and polypropylene microfibers alone and intermixed with brine shrimp.
According to Dr. Romanó de Orte,"Since plastic pollution is not happening alone, but together with other threats such as global climate change, studying the interaction between these two stresses is important to understand the real-world challenges that coral reefs faceFluorescent plastic microfibers that have been ingested by a bleached sea anemone, Aiptasia pallida.When combined with brine shrimp, 80% of bleached and healthy anemones ingested all of the different microfibers.
"We know that filters on washing machines are highly effective at preventing fibers from leaking into the wastewater stream and ultimately the marine environment," says Mallos,"We still need to find ways to divert and capture microfibers outside of the laundry cycle, at the production phase ... and we should also work to make materials that shed less."
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