Search Results for: ocean

First ever estimate of cod fishery in 1850s reveals 96% decline on Scotian Shelf

New insight for officials setting ecosystem goals, rebuilding fishery remnant

Once a dominant species, the volume of cod on the Scotian Shelf has plunged 96% since the 1850s, according to landmark research published today. In fact, just 16 small schooners of the pre-Civil War era could hold all adult cod currently estimated in the once-rich Scotian Shelf.

Writing in today’s edition of Frontier’s in Ecology (www.frontiersinecology.org), Census of Marine Life researchers

Insects, viruses could hold key for better human teamwork in disasters

In a new and novel study, scientists are looking to nature — specifically, to ants, bees and viruses — for ways to improve human collaboration during disaster relief efforts.

At the center of the scientists’ sights are a sub-group of their own species — specifically, civil engineers, who historically have had a limited role in such efforts, especially those involving critical physical infrastructures.

Supported by a five-year $2.37 million grant from the Nationa

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

New keys to understanding the evolution of life on Earth may be found in the microbes and minerals vented from below the ocean floor, say scientists at the University of California, Santa Barbara.

The UCSB scientists are making new contributions to this field of inquiry in their studies of seafloor hydrothermal fluid discharge into the Earth’s oceans, which has been occurring ever since the oceans first formed four billion years ago. Conditions below the sea floor may most

Hawaiian volcano may be health risk

Hawaiian residents who live downwind from the long-active Kilauea volcano may have elevated risks of adverse health conditions because of high levels of sulfur dioxide and aerosol particulates that drift downwind, according to a new study by researchers at Oregon State University and Hawaii.

During a three-week period of average volcanic activity, the researchers measured the sulfur dioxide level in the Kau district south of Kilauea at 17.8 parts per billion – above the minimal ri

Growth in the sea comes down to a struggle for iron

Scientists know that injecting iron into some major regions of the oceans can stimulate the growth of diatoms and other phytoplankton, but something odd occurs as these tiny marine plants continue to grow. They begin to starve in the midst of plenty, acting as though iron, an essential nutrient, still is in short supply. Why this happens is unclear, but the answer could be that iron sets off a kind of chemical warfare in the marine ecosystem, according to University of Maine oceanographer Mark

New dinosaur raptor found; First in Southern Hemisphere

Scientists at Ohio State University and the Argentine Museum of Natural History have identified a new species of raptor dinosaur from fossils found in Patagonia — the very southern tip of South America.

It is the first raptor ever found in the Southern Hemisphere, but compared to other raptors, Neuquenraptor argentinus wasnt much of a standout. It was only of average height and weight for its kind, measured six feet from head to tail, and brandished a razor-sharp claw for slashin

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