# Experts are warning that alga from south-east Asia are becoming a major threat to biodiversity. Since May, local authorities in Cádiz, Spain, have removed one-thousand-200 tonnes of the alga Rugulopteryx okamurae from La Caleta, the city’s most popular beach. The alga attaches itself to rocks and other surfaces and is also free-floating, wiping out native species of seaweed. University of Cadiz’s Biology professor, Juan José Vergara, says it will be difficult to eradicate or even significantly decrease the intensity of the alga invasion.
An aggressive invasive seaweed from south-east Asia is threatening biodiversity