A5085982430- Methane Hydrates and Related Phenomena
- Arctic and Antarctic ice dynamics
- Marine Biology and Ecology Research
- Isotope Analysis in Ecology
- Marine and environmental studies
- Geological Studies and Exploration
- Oceanographic and Atmospheric Processes
- Maritime Navigation and Safety
- Microbial Community Ecology and Physiology
- Marine and coastal ecosystems
- Atmospheric and Environmental Gas Dynamics
- Wastewater Treatment and Nitrogen Removal
- Environmental Monitoring and Data Management
- Geology and Paleoclimatology Research
- Food Industry and Aquatic Biology
- Marine and fisheries research
- Offshore Engineering and Technologies
- Marine Bivalve and Aquaculture Studies
- Underwater Acoustics Research
- Aquatic Invertebrate Ecology and Behavior
- Cephalopods and Marine Biology
- Arctic and Russian Policy Studies
- Marine and coastal plant biology
- Underwater Vehicles and Communication Systems
- Scientific Research and Discoveries
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung
2011-2021
Institute of Electrical and Electronics Engineers
2019
Observatoire Océanologique de Banyuls-sur-Mer
1999
Max Planck Institute for Solid State Research
1991
Time-series studies of arctic marine ecosystems are rare. This is not surprising since polar regions largely only accessible by means expensive modern infrastructure and instrumentation. In 1999, the Alfred Wegener Institute, Helmholtz-Centre for Polar Marine Research (AWI) established LTER (Long-Term Ecological Research) observatory HAUSGARTEN crossing Fram Strait at about 79° N. Multidisciplinary investigations covering all parts open-ocean ecosystem carried out a total 21 permanent...
Although recent reports indicate that anthropogenic waste has made it to the remotest parts of our oceans, there is still only limited information about its spread, especially in polar seas. Here, we present litter densities recorded during ship- and helicopter-based observer surveys Barents Sea Fram Strait (Arctic). Thirty-one items were total, 23 from helicopter eight research vessel transects. Litter quantities ranged between 0 0.216 km−1 with a mean 0.001 (±SEM 0.005) km−1. All floating...
A R C T I has played an essential role in the history of our planet over past 130 million years and contributes considerably to present functioning Earth its life.The global cycles a variety materials fundamental atmospheric conditions
A benthic species inventory of 1,125 taxa was compiled from various sources for the central Arctic deeper than 500 m, and bounded to Atlantic by Fram Strait. The dominated arthropods (366 taxa), foraminiferans (197), annelids (194), nematodes (140). An additional 115 were added Greenland–Iceland–Norwegian Seas (GIN). Approximately half all recorded only 1 or 2 locations. large overlap in with shelf supports previous findings that part deep-sea fauna originates species. Macrofaunal abundance,...
In the next decade pressures on ocean systems and communities that rely them will increase as multiple stressors of climate change, food security human activities start to impact. Our ability manage sustain our oceans depend data we collect information knowledge generated. Much uptake this be outside domain, for example by policy makers, local Governments, custodians other organizations, so it is imperative democratize or open access use data. This paper looks at how technologies, scoped...
ICOS-Oceans is the marine domain of European Research Infrastructure Consortium "Integrated Carbon Observation System" (ICOS). It aims at delivering high quality greenhouse gas (GHG) observations and derived data products (e.g. regional GHG-flux maps) for constraining GHG balance on a level, sustained long-term basis. currently consists 11 Ship Opportunity lines (SOOP – Program) 10 Fixed Stations (FOS) spread across waters, including North Atlantic Ocean Barents, North, Baltic Mediterranean...
To study the response of smaller benthic biota to larger food-falls and their possible effects on biodiversity at deep seafloor, we deployed halves a sagittally bisected porpoise (1.3 m in length; each half approximately 18 kg) 2500 5400 water depth LTER (Long-Term Ecological Research) observatory HAUSGARTEN eastern Fram Strait. Five weeks after deployment, sediments beneath carcasses different distances (0, 20, 40 cm) from these artificial were sampled with push-corers handled by Remotely...
This is the first study presents patterns and environmental controls of benthic biomass size spectra, carbon demand, production along entire bathymetric gradient from shelf to abyssal depths in transition zone between northern North-Atlantic central Arctic Ocean. The material was collected at 17 stations (76-5561 m) eastern Fram Strait, vicinity productive Marginal Ice Zone, with increased food availability phytodetritus sedimentation compared other deep-sea localities similar depths....
Megafauna plays an important role in benthic ecosystems and contributes significantly to biomass the Arctic. The distribution is mostly studied using towed cameras. Here, we compare megafauna from two sites located at different distances Kongsfjord: one station entrance fjord, another on outer shelf. Although they are only 25 km apart comparable depth, there were significant differences their species composition. While inshore was characterized by shrimps (2.57±2.18 ind. m−2) brittlestars...
Our ability to understand the complex interactions of biological, chemical, physical, and geological processes in ocean on land is still limited by lack integrative interdisciplinary observation infrastructures. The main purpose planned open-ocean infrastructure FRAM (FRontiers Arctic marine Monitoring) permanent presence at sea, from surface depth, for provision near real-time data climate variability ecosystem change a system. Alfred-Wegener-Institut - Helmholtz-Zentrum für Polar- und...
The past decades have seen remarkable changes in the Arctic, a hotspot for climate change. Nevertheless, impacts of such on biogeochemical cycles and Arctic marine ecosystems are still largely unknown. During cruises to deep-sea observatory HAUSGARTEN July 2007 2008, we investigated recycling organic matter margin sediments by performing shipboard measurements oxygen profiles, bacterial activities biogenic sediment compounds (pigment, protein, carbon, phospholipid contents). Additional situ...
Abundance, biomass and activity of the small-sized benthic organisms (bacteria to meiofauna, including foraminifera) was studied in summer 1998 during expedition ARK XIV/1a Amerasian area perennially ice covered central Arctic Ocean. With help two icebreakers, German research vessel POLARSTERN Russian nuclear-powered ARCTICA, it possible reach this remote, heavily ice-covered region order carry out first investigations. These focus on effects community expected low food availability under...
This issue of Oceanography mainly describes results from the HERMES project, which comes to a close in spring 2009.Building on success HERMES, European Commission has funded new project that will begin as ends.This entitled HERMIONE (Hotspot Ecosystem Research and Man's Impact Seas), have greater focus human impacts deep-sea environment place more emphasis translation information into policy.It wider public outreach program include areas research, such seamounts
Abstract During an expedition to the deep-sea long-term observatory HAUSGARTEN in eastern Fram Strait summer 2003, availability of a Remotely Operated Vehicle allowed targeted sampling surface sediments around relatively large dropstone (0.9 m2) determine suspected differences community structure and dynamics nematode assemblages relation confined flow regime patchy food immediate vicinity stone. The almost rectangular was about 150 cm length, 60 width, up 15 height. Small-scale current...