An Invasive Japanese Alga Now Covers the Sea Floor Off Sines Down to Twelve Metres, Ten Years After It Was First Logged in the Marina
Rugulopteryx okamurae runs from Melides to Azenha do Mar, worst at São Torpes and Ilha do Pessegueiro. It blocks light and oxygen, and the coralline algae, wracks and kelps under it die. It has been banned from the EU market since August 2022, which is the problem.
