“The orca’s main source of food is Chinook salmon. And the whales are suffering from malnutrition,” said NOAA Fisheries Scientist Mary Ruckelshaus.
“But by increasing salmon production in hatcheries, the whales’ appetites may be fed at the expense of recovering wild Chinook. Releasing large numbers of salmon raised in hatcheries can lead to the decline of wild salmon.”
Ruckelshaus will discuss how scientists assist managers with the difficult choices needed to restore the Puget Sound ecosystem in her talk as part of the symposium, “Embracing Change: A New Vision for Management in Coastal Marine Ecosystems” at the AAAS Annual Meeting in Boston.
Ecosystem restoration of Puget Sound is a mandate of Washington Gov. Chris Gregoire and the state legislature. Puget Sound is also one of four pilot studies by NOAA of integrated ecosystem assessments, a new way of using science to identify indicators of ecosystem health and to prioritize strategies that will contribute to measurable marine restoration goals.
The other pilot studies are taking place in the Northeast Shelf, Alaska and the California Current ecosystems.
Ben Sherman | EurekAlert!
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Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
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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.
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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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