My first is brown, my second is intrusive, my everything comes from Japan, who am I? Rugulopteryx okamurae. A species of seaweed native to the Pacific Ocean that invades the seabed of the creeks of Marseille.Appeared near Île Maïre a few years ago, the seaweed is now spreading at an incredible rate between Callelongue and Marseilleveyre (8th) and worries the population. Faced with this apparently uncontrollable phenomenon, fishermen and swimmers wonder about a potential health risk because any algae that ends up on a beach can ferment and emit a gas, sulfurized hydrogen, which is harmful in high doses. inhabitants, three associations of Callelongue (nautical group, divers from MSLC and CIQ) organized, Monday evening on the terr
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