fresh water, and suspended matter from the Siberian shelves across the central Arctic towards the Fram Strait channel, which connects to the Nordic Seas. This cross-Arctic flow influences the delivery

web (Graphic: Katja Metfies) Head of working group Dr. Katja Metfies HIFMB Cooperations HIFMB PEBCAO FRAM PrimePrevention MareExtreme Obama_Next Scientific approach Technology Projects Team

Hasemann, C., Wenzhoefer, F. (2018): Deep-sea benthic communities and oxygen fluxes in the Arctic Fram Strait controlled by sea-ice cover and water depth. Biogeosciences 15: 4849-4869. Braeckman, U., Janssen [...] Benthic oxygen uptake in the Arctic Ocean margins - A case study at the deep-sea observatory HAUSGARTEN (Fram Strait). PLoS ONE 10(10): e01383. Boetius, A., Wenzhöfer, F. (2013): Seafloor oxygen consumption fuelled

ships, e.g. Polarstern and air-supported spring expeditions, autonomous ice-tethered buoy systems like FRAM or MIDO have enabled a nearly year-round, Arctic basin-wide coverage of temperature and salinity profile

Dr. Judith Piontek Dr. Ian Salter associated groups: PLANKTOSENS Langzeitobservatorium HAUSGARTEN FRAM ICEFLUX

tolerate the heat as well as its ad- versary from the south. Fram Strait: Highway for species migration In the course of climate change the Fram Strait has be- come a highway for species migration. Atlantic [...] Ocean to the north via two ways (Fram Strait and Barents Sea) – and the volume is ten times that on the Pacific side. Around half of that turns around immediately in the Fram Strait. The other half, however [...] mountain ranges. The only deep-sea connection between the Arctic Ocean and other oceans runs through the Fram Strait – the passage between Greenland and Spitsbergen. Warming, acidification, altered stratification

and phytoplankton functional types (PFT) using shipboard underway AC-S flow-through system in the Fram Strait. These quality-controlled datasets are finally used to validate the quality of the Chl-a datasets [...] -M., Hellmann S., Wiegmann S., Bracher A. (in press 22 Jan 2018) Underway spectrophotometry in the Fram Strait (European Arctic Ocean): a highly resolved chlorophyll a data source for complementing satellite [...] between Chl-a data obtained from underway AC-S flow-through system and HPLC measurements during the Fram Strait cruises PS93.2 and PS99.2.

Wegener Institute established the LTER (Long-Term Ecological Research) observatory HAUSGARTEN in the Fram Strait. HAUSGARTEN observatory displays 21 permanent stations covering a water depth range of 250 [...] HAUSGARTEN observatory is successively extended within the frame of the HGF infrastructure project FRAM (Frontiers in Arctic marine Monitoring). Contact: T. Soltwedel, M. Bergmann, C. Hasemann , E.-M. Nöthig

Steinhöfel-Sasgen, Grit Postdoc Terbrüggen, Anja Engineer Torres Valdes, Sinhue Senior Scientist, "FRAM" Völker, Christoph Senior Scientist Wuttig, Kathrin Postdoc Wollenburg, Jutta Senior Scientist Ye

Hasemann, C., Wenzhoefer, F. (2018). Deep-sea benthic communities and oxygen fluxes in the Arctic Fram Strait controlled by sea-ice cover and water depth. Biogeosciences 15: 4849-4869. Braeckman, U., Janssen