Introduced Alga Now Transforming the Wadden Sea
Alfred Wegener Institute (AWI)
Published: 21 December 2020
The fast-spreading alga Vaucheria velutina is transforming the Wadden Sea near Sylt, clogging lugworm burrows and altering ecosystems. Likely introduced via Pacific oysters, its ecological impact is still unfolding.
Keywords: Vaucheria velutina, Wadden Sea, invasive algae, lugworms, ecosystem change, Sylt, Pacific oysters
The new face of the Antarctic
Alfred Wegener Institute (AWI)
Published: 6 January 2021
A major review of Antarctic research reveals warming seas may boost biodiversity short-term but threaten cold-adapted species. Acidification, sea-ice loss, and uncertain CO₂ uptake signal major ecological shifts ahead.
Keywords: ocean acidification, sea ice, CO2 absorption, species migration, warming seas, Southern Ocean, AnT-ERA
Manganese nodules as breeding ground for deep-sea octopuses
Alfred Wegener Institute (AWI)
Published: 19 December 2016
Deep-sea octopuses lay eggs on sponges that only grow on manganese nodules, making these nodules vital for reproduction. Their discovery at over 4000 m depth highlights ecological risks of seabed mining, as recovery from disturbances may take decades.
Keywords: deep-sea octopus, manganese nodules, brooding ground, deep ocean, seabed mining, Peru Basin, ecological impact
