Archive of News and Press Releases

The alga Vaucheria velutina has been chosen “Alga of the Year 2021”. The Phycology Section of the German Society for Plant Sciences recently elected this introduced species “due to its sudden dominance and the unforeseeable ecological impacts” that its novel appearance in the northern Wadden Sea could entail. Mud gets trapped in the tube-like filaments of this alga, while other species of Vaucheria only thrive in salt marshes. As a result, lugworm burrows become clogged, and this eventually is transforming the Wadden Sea ecosystem. Coastal scientist Prof…

Until recently, what we knew about the lives of baleen whales in the Southern Ocean was chiefly based on research conducted during the Antarctic summer. The reason: in the winter, there were virtually no biologists on site to watch for the animals. Experts from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), have now used permanently installed underwater microphones, which have been recording for the past nine years, to successfully gather and analyse whale observation data from the Weddell Sea. The audio recordings…

This year, the Alfred Wegener Institute’s Neumayer Station III will be exclusively supplied by sea. The research vessel Polarstern will transport– as usual – materials and fuel to the Antarctic. However, due to the coronavirus, this season all the staff who will work at the station will also travel to the Southern Continent by ship.

 

In the past 20 years, Central Europe has experienced six summer heat waves and droughts. Until now, however, it was unclear what factors led to these extreme events. Researchers from two Helmholtz Centres (AWI & UFZ) have now discovered that in Central Europe, temperature and precipitation patterns in April play a vital role in determining whether or not the soils are drier than average in the following summer. If the April is too warm, with little precipitation, a large proportion of the moisture stored in the soil evaporates, making a summer drought…

At what depth beneath the seabed does it become so hot that microbial life is no longer possible? This question is the focus of a close scientific cooperative effort between the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) and MARUM – Center for Marine Environmental Sciences at the University of Bremen. An expedition by the drilling program IODP (International Ocean Discovery Program) in 2016, in which also an AWI scientist was involved, has provided new insights into the temperature limits of life beneath the ocean floor. The findings…