A “dead zone” that formed in 2001 in Narragansett Bay left a lethal legacy, Brown University research shows. In a study of nine mussel reefs, published in Ecology, researchers report that oxygen-depleted water killed one reef and nearly wiped out the rest. A year later, only one of the nine reefs was recovering. The result was a sharp reduction in the reefs’ ability to filter phytoplankton, a process that helps control “dead zone” formation.
Waves of dead mussels – researchers estimate the die-off at about 4.5 billion – washed ashore on Prudence Island, left, and elsewhere in Narragansett Bay during the summer of 2001.
Fish kills, foul odors and closed beaches hit Rhode Island’s Narragansett Bay during the summer of 2001. The culprit was hypoxia, or oxygen depletion, which literally suffocates sea life. While some evidence of this “dead zone” could be seen on the bay’s surface, Brown University ecologists went underwater and discovered a massive mussel die-off.
In a survey of nine mussel reefs located in the central bay, researchers found one reef completely wiped out. Of the remaining eight, seven were severely depleted. The ecologists estimate that the number of mussels that died was roughly 4.5 billion, or about 80 percent of the reefs’ population.
Wendy Lawton | EurekAlert!
Waste in the water – New purification techniques for healthier aquatic ecosystems
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Scientists present work at prestigious SIGGRAPH conference
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Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
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