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Atlantic Ocean’s slowdown tied to changes in the Southern Hemisphere

Earth

The ocean circulation that is responsible for England’s mild climate appears to be slowing down. The shift is not sudden or dramatic, as in the 2004 sci-fi movie “The Day After Tomorrow,” but it is a real effect that has consequences for the climates of eastern North America and Western Europe. Also unlike in that movie, and in theories of long-term climate change, these recent trends are not connected with the melting of Arctic sea ice and buildup of freshwater near the North Pole. 

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UW gets NOAA grant to begin testing new forecast for toxic shellfish

The automated Environmental Sample Processor will analyze seawater for algal species and toxins. Researchers deployed it in May about 13 miles off Washington’s coast.

A new NOAA-sponsored University of Washington project brings together academic, federal, state and tribal scientists to develop forecasts for toxic harmful algal blooms in the Pacific Northwest, like the massive bloom that closed Pacific Northwest beaches to shellfish harvesting in summer 2015. The National Oceanic and Atmospheric Administration in August awarded a five-year, $1.3 million grant to start working on the forecasts. 

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Ocean conditions contributed to unprecedented 2015 toxic algal bloom

A magnified image of Pseudo-nitzschia australis, which dominated the 2015 bloom.

A study led by researchers at the University of Washington and the National Oceanic and Atmospheric Administration connects the unprecedented West Coast toxic algal bloom of 2015 that closed fisheries from southern California to northern British Columbia to the unusually warm ocean conditions — nicknamed “the blob” — in winter and spring of that year. “We have toxic algae events that result in shellfish closures off the Washington and Oregon coast every three to five years or so, but none of them have been as large as this one,” said lead author Ryan McCabe, a research scientist at the UW’s Joint Institute for the Study of the Atmosphere and Ocean, a collaborative center with NOAA. 

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10 UW Environment stories you may have missed over the summer

Journal pages list all the species of plants the UW Environmental Studies class has seen by the penultimate day of their backpacking trip in the Olympic National Park backcountry. Here, the group takes a break at Grand Pass.

At the conclusion of a long and arduous academic year, many students look forward to the rest and relaxation that comes with summertime. But while many are enjoying the glorious downtime of a few months without classes, others — faculty, undergrads, graduate students and postdocs — are in the field and in labs pushing their research forward. The summer of 2016 was no different. 

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Missing fish catch data? Not necessarily a problem, new study says

Recording how many fish are caught is one important requirement to measure the well-being of a fish stock — if scientists know the number of fish taken from the ocean, they can adjust management of that fishery to keep it from being overfished. Missing catch data, however, are rampant, causing concern that fisheries around the world are overfished. A new study by University of Washington scientists finds that in many cases, this isn’t true. 

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