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Newly discovered species found deep in the ocean contains microplastic

A shrimp-like creature found 6 kilometres down in the Pacific Ocean’s deepest trench has been named Eurythenes plasticus after the microplastics found in its gut

Photo
BBDO/Weston/Jamieson

THE beautiful, interlocking, armoured plates of this amphipod are meant to keep it safe from predators and other threats. But they can’t protect it from plastic pollution, which is how this creature got its name.

Eurythenes plasticus is a newly described shrimp-like species found between 6 and 7 kilometres down in the Pacific Ocean’s Mariana trench, where Earth’s deepest waters are found.

, UK, and her colleagues used baited traps to catch several specimens, which can grow up to 5 centimetres long. Analysing their hindguts revealed that one of them, a juvenile, had consumed a microplastic particle very similar to polyethylene terephthalate, or PET, a plastic often used to make water bottles and fabrics.

The team named the animals plasticus to send the message that even sea creatures living so deep are exposed to this pollution. And if a juvenile consumed plastic, this indicates that such scavengers could be “ingesting microplastics throughout their life, which could pose acute and chronic health effects”, says the team (Zootaxa, doi.org/dp3m).

While the effects of exposure to microplastics haven’t been studied in deep-sea amphipods, there is evidence that – polypropylene fibres – increases mortality in Pacific sand crabs.

Topics: photography / sea life