. In 1999, the institute established a long-term observatory in Fram Strait between Greenland and Svalbard. Today, the HAUSGARTEN observatory consists of 21 monitoring stations at depths of between 250 [...] responses in the deep-sea ecosystem. This can already be seen in Fram Strait between Svalbard and Greenland, where the composition of the phytoplankton has changed. Whereas, in past decades, more diatoms [...] untouched by time. Even in remote regions like the floor of Fram Strait between Greenland and Svalbard, the number of these large bits of litter has grown substantially in recent years. Moreover,