The Irish Mail on Sunday

HOW OUR PLASTIC WASTE IS BLIGHTING SPECIES BEFORE WE EVEN DISCOVER THEM

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aftER the broadcast of David attenborou­gh’s breathtaki­ng documentar­y tV series Blue Planet II, the great environmen­talist said: ‘Suddenly the world was electrifie­d about the crime of chucking plastic into the ocean.’

tragically, the

Mariana trench has not escaped this blight. for scientists found plastic in the gut of tiny amphipods

(small crustacean­s such as sand fleas) living 6km below the surface. the creatures contained polyethyle­ne terephthal­ate, a plastic commonly used to make household items such as water bottles.

Dr alan Jamieson, a marine ecology expert from Newcastle University, said: ‘We will never know how the presence of plastic might affect this animal’s feeding, mobility and reproducti­on because they are all contaminat­ed. We are

polluting species even before we discover them.’

So far, explorer Victor Vescovo’s expedition­s have discovered 40 new species, including a dumbo octopus that lives over 1.5km deeper than any previously known octopus. ‘that was a really cool moment in natural history,’ says Dr Jamieson, who is considered the world’s leading expert in the so-called ‘hadal zone’. this is the biogeograp­hic realm where there is no plant life because of the absence of light. the zone is occupied chiefly by

carnivorou­s animals that are often blind or have luminous organs structural­ly adapted to withstand the great pressures.

addressing the discovery of a dumped Coca-Cola can on the sea bottom, Dr Jamieson says: ‘In the deep sea, I have seen a lot of cans and bottles, even books, railings, ceramic bowls, a lot of plastic bags, tarpaulins, ropes, string and, weirdly, a lot of old shoes.’ But he stresses that ‘nanoplasti­c’ invisible to the eye is

‘probably doing the most harm’.

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