LTER HAUSGARTEN

Updated 2016-04-14

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.

This is not a National Implementation Plan (NIP) project

Time frame

Status
Ongoing
Project time span
1999 -
Data collection
1999 -
Data processing
1999 -
Data reporting
1999 -

Contact information

Contact person
Thomas Soltwedel
Address

Alfred-Wegener-Institute Helmholtz-Center for Polar and Marine Research

Am Handelshafen 12

27570 Bremerhaven

Germany

Phone
+49 (0)471 4831 1775
Fax
+49 (0)471 4831 1776
Email
ed.iwa@ledewtlos.samoht

Parameters and Media

Parameter groups measured/observed/modelled
Climate change effects
Media sampled/studied/modelled
Algae (algae, phytoplankton)
Marine benthos
Marine sediments
Plankton (zooplankton)
Seawater/suspended particulate matter

Geography

Regions studied
Hausgarten observation region
Other areas
•  Pelagic Zone
 
temperature, currents (speed, direction), oxygen concentrations, nutrients,
phyto-/zooplankton, particle flux rates (sediment traps)

  

•  Sediment-Water-Interface
 
currents and oxygen concentrations, carbon remineralisation
(oxygen microelectrodes, sediment community oxygen consumption)

 

•  Sediments
 
granulometry, porosity, organic carbon contents,
organic matter input (pigments indicating phytodetrital matter),
biomarker (marine, terrigenous), biomass parameter (proteins, lipids)

    

•  Benthos
 
bacteria, meiofauna, macrofauna, mega/epifauna, demersal fish

(microbial activity, densities, biomass, dispersion, biodiversity)

Stations or areas where observations are made
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

Data availability

Are data archived or planned to be archived at an AMAP Thematic Data Centre?
No
If no (or only part of data are reported to a TDC), where and how are (other) data stored?

Full data, without charge

Data availability and access

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

References to key publications (or planned publications) and data reports

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

Samples/specimens archived in specimen banks?
No

Methods & Procedures

Not specified

Additional Information

Is this a bi- AND multi-lateral project (i.e. a project involving cooperation between different countries)?
Yes
Is this project reporting to other organizations/programmes?

European Multidisciplinary Seafloor Observatory (EMSO),

Svalbard Integrated Arctic Earth Observing System SIOS),

Integrated Carbon Observation System (ICOS)

 

Indigenous AND traditional knowledge used in this project

No

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