Multidisciplinary investigations at the LTER (Long-Term Ecological Research) observatory HAUSGARTEN are carried out at a total of 21 permanent sampling sites in water depths ranging between 250 and 5,500 m. From the outset, repeated sampling in the water column and at the deep seafloor during regular expeditions in summer months was complemented by continuous year-round sampling and sensing using autonomous instruments in anchored devices (i.e., moorings and free-falling systems). The central HAUSGARTEN station at 2,500 m water depth in the eastern Fram Strait serves as an experimental area for unique biological in situ experiments at the seafloor, simulating various scenarios in changing environmental settings. Time-series studies at the HAUSGARTEN observatory, covering almost all compartments of the marine ecosystem, provide insights into processes and dynamics within an arctic marine ecosystem and act as a baseline for further investigations of ongoing changes in the Fram Strait. Long-term observations at HAUSGARTEN will significantly contribute to the global community’s efforts to understand variations in ecosystem structure and functioning on seasonal to decadal time-scales in an overall warming Arctic and will allow for improved future predictions under different climate scenarios.
Alfred-Wegener-Institute Helmholtz-Center for Polar and Marine Research
Am Handelshafen 12
27570 Bremerhaven
Germany
(microbial activity, densities, biomass, dispersion, biodiversity)
| Station ID | Latitude | Longitude | Depth |
| HG-I | 79° 8,01' N | 6° 6,39' E | 1244 |
| HG-II | 79° 7,93' N | 4° 54,37' E | 1492 |
| HG-III | 79° 6,39' N | 4° 35,10' E | 1905 |
| HG-IV | 79° 3,91' N | 4° 10,98' E | 2403 |
| HG-V | 79° 3,14' N | 3° 40,37' E | 3034 |
| HG-VI | 79° 3,55' N | 3° 34,37' E | 3531 |
| HG-VII | 79° 3.60' N | 3° 28.46' E | 4042 |
| HG-VIII | 79° 3.84' N | 3° 20.23' E | 5089 |
| HG-IX | 79° 9,50' N | 2° 52,97' E | 5525 |
| N5 | 79° 56,29' N | 3° 11,59' E | 2549 |
| N4 | 79° 45,47' N | 4° 22,60' E | 2566 |
| N3 | 79° 36,25' N | 5° 10,28' E | 2783 |
| S3 | 78° 35,98' N | 5° 4,07' E | 2342 |
| SV-I | 79° 1,71' N | 11° 5,22' E | 275 |
| SV-II | 78° 58,81' N | 9° 31,00' E | 226 |
| SV-III | 79° 00,0'N | 8° 20,0'E | 700 |
| SV-IV | 79° 1,78' N | 6° 59,94' E | 1304 |
| EG-I | 78° 58,40' N | 5° 17,43' W | 1056 |
| EG-II | 78° 56,01' N | 4° 39,02' W | 1500 |
| EG-III | 78° 48,19' N | 3° 52,52' W | 1944 |
| EG-IV | 78° 30,34' N | 2° 49,06' W | 2558 |
Full data, without charge
All data from time-series work at the LTER (Long-Term Ecological Research) Observatory HAUSGARTEN go into the PANGAEA data repository:
https://www.pangaea.de/search?count=10&q=project%3Ahausgarten
Soltwedel, T., Bauerfeind, E., Bergmann, M., Budaeva, N., Hoste, E., Jaeckisch, N., Juterzenka, K. v., Matthießen, J., Mokievsky, V., Nöthig, E.-M., Quéric, N., Sablotny, B., Sauter, E., Schewe, I., Urban-Malinga, B., Wegner, J., Wlodarska-Kowalczuk, M., Klages, M. (2005): HAUSGARTEN: multidisciplinary investigations at a deep-sea, long-term observatory in the Arctic Ocean. Oceanography, 18 (3): 46-61, doi.org/10.5670/oceanog.2005.24.
Soltwedel, T., Bauerfeind, E., Bergmann, M., Bracher, A., Budaeva, N., Busch, K., Cherkasheva, A., Fahl, K., Lalande, C., Metfies, K., Nöthig, E.-M., Meyer, K., Quéric, N.-V., Schewe, I., Wlodarska-Kowalczuk, M., Klages, M. (2015). Natural variability or anthropogenically-induced variation? Insights from 15 years of multidisciplinary observations at the arctic marine LTER site HAUSGARTEN. Ecological Indicators, 65: 89-102, doi.org/10.1016/j.ecolind.201510.001
European Multidisciplinary Seafloor Observatory (EMSO),
Svalbard Integrated Arctic Earth Observing System SIOS),
Integrated Carbon Observation System (ICOS)
No