Environment

Sea grasslands can facilitate removal of plastic from the sea

Sea meadow

Credit: Unplash / CC0 Public Domain

According to one study, seawater debris can be trapped in sea water debris, extracted and can help remove plastic litter in the ocean. Scientific report.

Previous research suggested that most plastics end up in the ocean floor and some are washed back to shore; However, how this happens was not clear.

Seagrass grasslands are widespread in shallow coastal waters and are involved in trapping and tying sediment particles that form seabeds. To assess the role that marine travel may have in traps and removal , Anna Sanchez-Vidal and colleagues measured the amount of plastic debris collected from sea litter from four beaches in Mallorca, Spain between 2018 and 2019. Mallorca is widespread And a high level of plastic near the edge. The authors found plastic debris among 50% of the 42 loose seagrass leaf samples and intertwined in 17% of 198 balls of seagrass fibers, known as aegagropilae or Neptune balls. Up to 613 and 1,470 Loose leaves and Neptune balls were found per kilo respectively.

Using this data and estimates of seagrass fiber production in the Mediterranean, the authors propose that the Mediterranean seagrass could trap 867 million plastic objects in Neptune balls each year alone, although the number would have been carried to shore. Is and once washed plastic fate shelter unknown.

The findings suggest that sea grasslands may help combat marine plastic pollution. As previous research has found that seabed areas in the Mediterranean Sea have decreased by 13 to 50% since 1960, according to the authors, sea grassland conservation should be a priority.


The new study has a fresh call for conservation of sea travel


more information:
Marine travelers provide a novel ecosystem service by trapping marine plastic, Scientific report (2021). DOI: 10.1038 / s41598-020-79370-3

Quotes: Seagrass grasslands may facilitate plastic removal from the sea (2021, 14 January) https://naveenbharat.org/news/2021-01-seagrass-meadows-marine-plastic-ea.html 14 January 2021 Retrieve

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