Whereas sampling with different kinds of equipment is normally used to collect information on bottom fauna, a specially designed video rig has allowed the scientists to film 80 kilometres of seabed during their survey off the coast of northern Norway. The seabed in the area is characterised by deep fjords and shelf areas with fishing banks and intersecting channels. Many of the habitats found here are complex and not easily documented with standard sampling gears.
Sunstar (Solaster sp.) at 300 metres depth in the Barents Sea.
A small bubble gum coral (Paragorgia arborea) with various epifauna attached, at 200 metres depth in a fjord.
Better knowledge of the ecosystem
The recent survey was conducted as part of a large-scale mapping programme. Biologists from the Institute of Marine Research, geologists from the Geological Survey of Norway, and cartographers from the Norwegian Hydrographic Service cooperate through the MAREANO programme to provide maps of topography, biodiversity and geological conditions of the seabed in Norwegian waters. Initially focusing on the Barents Sea, the first phase of MAREANO will be carried out from 2005-2010 with a total cost of € 30 million.
The importance of this seabed mapping is emphasised in the Integrated Management Plan for the Barents Sea recently presented by the Norwegian Government. Extensive plans for exploitation of oil and gas reserves in Lofoten and the Barents Sea are being considered, and a sustainable management of the area is highly dependent on improved knowledge of the Arctic ecosystems.
Yvonne Robberstad | alfa
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Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).
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Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.
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Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.
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