VALLAURIS: What see­med a like a crazy idea turned out to be just that: a 1980s experiment that saw 25,000 car tyres dumped into the crystal-clear waters of the Mediterranean to create a sanctuary for sealife off the French coast is being cleaned up after it was found to be polluting.

Since the start of last week, divers and a specially equip­ped boat with lifting gear have been fishing out hundreds of the old loops of rubber about 500 metres (1,600 feet) from an exclusive coastline between the towns of Cannes and Antibes.

The original vision, bac­ked by local French authorities at the time and fishermen, was that the tyres would become populated by coral and other sea creatures in a conservation area where fishing was off limits.

In France, the idea of a “tyre reef” was tried only here, but a local academic working on the clean-up operation said authorities in other countries, particularly the United States, had tried the same failed idea.

“We hoped (back in the 1980s) that we could restore aquatic life there, but it didn’t work,” the deputy mayor of Antibes, Eric Duplay said. “It turns out that the tyre reef was not a prolific place for biomass.” Denis Genovese, the head of an association of local fishermen, confirmed that most Mediterranean lifeforms had shunned the idea of living inside mad-made products manufactured out of rubber, resins, oil and other chemicals.

Sedentary creatures such as the local scorpion fish didn’t use them, Genovese said, while “grouper fish, conger eels and sea bream swim around them, but no species really got used to it”.

Worse, a study in 2005 by researchers at the University of Nice showed that the tyres were leaking toxic chemicals into the environment, including heavy metals, which are a threat to human life.

Published in Dawn, September 24th, 2018