Rare Deep-Sea Rays Contain Fibers from Historic Plastics

Even bottom-dwelling deep-sea rays show microplastic accumulation spanning decades!

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Deep-sea rays can preserve microplastic fibers for decades, reflecting long-term contamination.

Preserved deep-sea rays were found to contain microplastic fibers in muscle and digestive tissues. These rays feed on benthic organisms that ingest plastics from sediments. Fibers were traced back decades, revealing persistent contamination in abyssal habitats. Despite being non-pelagic, rays accumulate pollutants through feeding and sediment interaction. Researchers note that microplastics infiltrate even low-mobility species, indicating widespread ecological penetration. Rays’ tissues serve as biological archives, preserving records of historical pollution. The findings underscore the hidden vulnerability of all deep-sea giants, regardless of mobility. Studying rays helps reconstruct the timeline of microplastic pollution in extreme habitats. This demonstrates that sediment-dwelling giants also record human environmental impact.

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Microplastic accumulation in rays informs benthic ecosystem health and contamination pathways. Students can explore bottom-dwelling species as historical pollution indicators. Conservationists can monitor rays for long-term trends in sediment-borne plastics. Outreach programs can safely illustrate accumulation in low-mobility species. Highlighting rays emphasizes that microplastics affect all habitats and lifestyles. Public interest rises when seemingly sedentary giants reveal decades of hidden pollution. Conservation strategies can include rays in monitoring programs to track ecosystem-wide contamination.

Fibers in ray tissues provide insight into trophic transfer and ecosystem persistence of pollutants. Archival and field studies reveal historical contamination and sediment interactions. Educational programs can safely simulate bioaccumulation in benthic species. Conservation planning benefits from including rays in monitoring deep-sea contamination. Studying rays highlights that even sedentary giants are impacted by persistent human debris. It emphasizes the long-term ecological footprint of microplastics. Findings underscore the connectivity between benthic and pelagic species in deep-sea ecosystems.

Source

Marine Environmental Research

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