Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Departure to cold water corals and other "hot spots"

25.05.2007
RV Polarstern leaves Bremerhaven for its 22nd Arctic expedition with a new shine, to begin its first work in the International Polar Year.

With a new coat of paint, thorough ship inspection, and sailing under the flag of the Helmholtz Association, Polarstern begins to make its way toward the north on May 29. The flagship of the Alfred Wegener Institute for Polar and Marine Research (AWI), is initially heading to Northern Norway and then on to Spitsbergen during its 22nd Arctic expedition.

One of the scientific priorities is the European project HERMES (Hotspot Ecosystem Research on the Margins Of European Seas), in which the ecological ecosystems of the deep sea will be investigated. The manned underwater craft, JAGO, belonging to the Leibniz Institute of Marine Sciences, IFM GEOMAR from Kiel and the remote-controlled underwater craft QUEST from the MARUM of the University of Bremen are all planning to be used.

130 scientists from eleven countries, divided into three groups will participate in the expedition.

Professor Dr Jörn Thiede, director of the Alfred Wegener Institute for Polar and Marine Research will take the scientific leadership of the first stage. The focus of this research will be the coldwater corals off the coast of Norway. Coldwater corals develop in a similar way to their tropical reef counterparts. They form unique ecosystems, within which, one may be able to find more than 600 different animal species. With the help of the underwater craft, JAGO, the coral reef will be able to be examined, photographed and probed. A scientist will be able to accompany the crafts pilot down to about 400 meters below the sea.

The second stage of the expedition will be lead by Dr, Michael Klages (AWI) and will go to the Håkon-Mosby mud volcano, located off the Norwegian coast. It is an underwater discharge point for methane gas at a depth of 1250 meters. The investigation of this mud volcano will occur with the help of the remote-controlled underwater vessel "QUEST" from the MARUM at the University of Bremen. QUEST will also be used in the third stage of the expedition in the so-called “Hausgarten”.

The Alfred Wegener Institutes’ “Hausgarten” is one of ten deep-sea observatories belonging to the European Union, and supported by ESONET (European Seas Observatory NETwork). In addition to the standard program, experiments will be carried out with the help of QUEST in order to investigate the deep-sea under natural conditions during which samples will also be taken.

The investigation at the cold water corals, the mud volcano and the „garden house“ underwater observatory are all part of the European HERMES project. This project coincides with the International Polar Year, and aims to contribute to the knowledge on species diversity, structure, function and dynamics of different ecosystems along the coastline of the European continent. The results may help to influence future guidelines for European marine politics.

HERMES will investigate European deep-sea ecosystems, and then these will be compared with each other. The results will then be used to create models, with the hope that these sensitive ecosystems may then be able to be simulated. Various ecosystems will be selected, locations starting from Spitsbergen in the North, around the Norwegian coast, and up to the Black Sea will be studied. A particular priority will be the so-called „hot spots“. They are can be defined as systems that are under strict physically control, for example, unstable continental slopes, deep sea ditches, deep water corals, cold seeping or oxygen free areas, regions colonised by bacterial communities. These communities are shaped by particularly dynamic boundary conditions.

These areas are considered to be very sensitive to both local and worldwide changes. In addition, due to their important global context in the carbon cycle, they should be intensively researched says Dr. Michael Klages, scientific leader of the second and third stage of this expedition. This section of the journey will end on 25th of July in Tromsø. Finally, the Polarstern will head into the eastern part of the Arctic, and in conjunction with other research icebreakers located in different regions of the Arctic, the condition of the whole Arctic Ocean in relation to climate change will be investigated.

Angelika Dummermuth | alfa
Further information:
http://www.awi.de/en/home

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

Cholesterol-lowering drugs may fight infectious disease

22.08.2017 | Health and Medicine

Meter-sized single-crystal graphene growth becomes possible

22.08.2017 | Materials Sciences

Repairing damaged hearts with self-healing heart cells

22.08.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>