For the second time in three years, a hypoxic "dead zone" has formed off the central Oregon Coast. Its killing fish, crabs and other marine life and leading researchers to believe that a fundamental change may be taking place in ocean conditions in the northern Pacific Ocean.
The event appears similar to one in 2002, when an area of ocean water with low oxygen content formed in the nearshore Oregon coast between Newport and Florence, causing a massive die-off of fish and invertebrate marine species. The fact that its happening again is triggering concern among marine scientists.
In 2002, the dead zone appeared to be a one-time anomaly, an odd combination of climate, winds and upwelling patterns that led to a hypoxic event – a situation in which the oxygen level was so low it could not support most marine life – which had not been seen in the regions recent history.
Jane Lubchenco | 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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