Substantial risks to native fish stocks argue for evaluation of dangers
The substantial risk to salmon stocks posed by salmon that escape from net-pen farms argues for risk assessments of all types of marine fish farming, according to an article published in BioScience. Rosamond Naylor of Stanford University and nine coauthors conclude in their article that without a firm policy mandate for risk assessment of escaping farm fish, aquaculture will "almost certainly lead to extensive competition between wild fish and continuously released farm fish--or widespread establishment of exotic fish species--and thus to a further decline in wild fish stocks."
Naylor and her coauthors conclude that, despite some efforts by aquaculture companies to curtail farm salmon escapesâ€"such as using stronger net materialsâ€"the efforts are inadequate, as monitoring and enforcement of regulations governing escapes are weak. An estimated two million farm Atlantic salmon escape each year into the North Atlantic, and millions more have escaped on the western coasts of North American and South America. Farm Atlantic salmon are more aggressive and faster-growing than native fish, with which they compete for food.
Donna Royston | EurekAlert!
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Satellites in near-Earth orbit are at risk due to the steady increase in space debris. But their mission in the areas of telecommunications, navigation or weather forecasts is essential for society. Fraunhofer FHR therefore develops radar-based systems which allow the detection, tracking and cataloging of even the smallest particles of debris. Satellite operators who have access to our data are in a better position to plan evasive maneuvers and prevent destructive collisions. From April, 25-29 2018, Fraunhofer FHR and its partners will exhibit the complementary radar systems TIRA and GESTRA as well as the latest radar techniques for space observation across three stands at the ILA Berlin.
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An international team of researchers has discovered a new anti-cancer protein. The protein, called LHPP, prevents the uncontrolled proliferation of cancer cells in the liver. The researchers led by Prof. Michael N. Hall from the Biozentrum, University of Basel, report in “Nature” that LHPP can also serve as a biomarker for the diagnosis and prognosis of liver cancer.
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In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.
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Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.
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