Like weeds of the sea, ‘brown tide’ algae exploit nutrient-rich coastlines

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A new study highlights up close the survival skills that have made Aureococcus anophagefferens the bane of fishermen, boaters and real-estate agents. Building on previous mapping of Aureococcus' genome, the study confirms that the genes previously hypothesized to help Aureococcus survive in murky nutrient-rich waters, switch on in conditions typical of estuaries degraded by human activity....

Thunder Bay National Marine Sanctuary Expands By 3,852 Square Miles

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On Sep. 5, NOAA released a final rule and environmental impact statement expanding the boundaries of Thunder Bay National Marine Sanctuary in Lake Huron from 448 square miles to 4,300 square miles. The new boundaries now include the waters of Lake Huron adjacent to Alcona, Alpena, and Presque Isle counties to the international border.

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Discrepancy in Greenland temperatures during end of last ice age resolved

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A new study of three ice cores from Greenland documents the warming of the large ice sheet at the end of the last ice age -- resolving a long-standing paradox over when that warming occurred....

Biomedical technique applied to reveal changes within body of ocean

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For decades, medical researchers have sought new methods to diagnose how different types of cells and systems in the body are functioning. Now scientists have adapted an emerging biomedical technique to study the vast body of the ocean....

Online Atlas Documents Coastal Land Cover Changes Over Time

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A new NOAA nationwide analysis shows that between 1996 and 2011, 64,975 square miles in coastal regions--can area larger than the state of Wisconsin--experienced changes in land cover, including a decline in wetlands and forest cover with development a major contributing factor.

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What is blue carbon?

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Blue carbon is a term used to described the carbon captured by the world's ocean and coastal ecosystems.
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Better regulations needed for deep-sea biology

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Although we know relatively little about the deep sea, we do extract raw materials for electronics and medicines from it. Biologists describe the history of deep-sea biology and give some pointers on how to protect this remarkable but rather inaccessible area....

New, inexpensive method for understanding earthquake topography

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Using high-resolution topography models not available in the past, geologists can greatly enrich their research. However, current methods of acquisition are costly and require trained personnel with high-tech, cumbersome equipment. In light of this, scientists have developed a new system that takes advantage of affordable, user-friendly equipment and software to produce topography data over small, sparsely vegetated sites at comparable (or better) resolution and accuracy to standard methods....

Ocean mappers discover seamount in Pacific Ocean

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Scientists on a seafloor mapping mission have discovered a new seamount near the Johnson Atoll in the Pacific Ocean. The summit of the seamount rises 1,100 meters from the 5,100-meter-deep ocean floor. The seamount's impact remains unknown -- for now. It's too deep (its summit lies nearly 4,000 meters beneath the surface of the ocean) to be a navigation hazard or to provide rich fisheries. "It's probably 100 million years old," Gardner says, "and it might have something in it we may be interested in 100 years from now."...

Who is to blame for ocean trash? Giant garbage patches help redefine ocean boundaries

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Researchers have created a new model that could help determine what area of the world is to blame for each ocean garbage patch of floating debris – a difficult task for a system as complex and massive as the ocean....