Search Results for: ocean

The last stage of an arctic odyssey

The French explorer, Gilles Elkaïm, who left North Cape (Norway) in May 2000, has almost completed the seventh and final stage of his 12,000 km solo trek along the rim of the Arctic Ocean, from the Atlantic to the Pacific, on foot, kayak, skis, by sled pulled by himself or by dogs… with help from ESA.

The “Arktika” expedition is nearing its conclusion. Gilles Elkaïm and his twelve sled dogs, who, last May, set up summer camp in a disused military base, close to Cape Shelagskiy (the most n

Nanoparticles from the ocean and vehicle emissions

Under the right conditions, nanoparticles can form spontaneously in the air. Atmospheric nanoparticles are an important missing factor in understanding global climate change, because they could influence cloud formation and change how the Earth reflects or retains heat, said Anthony Wexler, professor of mechanical and aeronautical engineering at UC Davis.

They may also have health effects. Wexler’s laboratory uses and develops equipment to detect these extremely small particles. On the

Antarctic fish study may aid cardiac research

A species of fish that lives in Antarctic waters may hold clues to climate change and lead to advances in heart medicine. Researchers from the University of Birmingham and the British Antarctic Survey (BAS) are investigating the behaviour and physiology of the ’Antarctic Cod’ (Notothenia coriiceps) which became isolated from its warmer water cousins around 30 million years ago when the Antarctic circumpolar current was formed.

The olive-coloured fish has broad head and a narrow bo

There be dragons: New deep-sea predator species discovered

Dr. Tracey Sutton, a fish ecologist at the HARBOR BRANCH Oceanographic Institution in Ft. Pierce, Fla., has discovered a new species in a bizarre and elusive family of deep-sea predatory fish known collectively as dragonfish. The find, reported in the current issue of the journal Copeia, is the first new dragonfish species discovered in more than a decade.

The first specimen of the new species, dubbed Eustomias jimcraddocki, was large, compared to the average pencil-sized dragonfish at abou

Envisat fishes up facts behind Chilean giant squid invasion

Masses of large ocean-going squid have inundated the shores of Southern Chile, alarming local fishermen who fear these carnivorous invaders could threaten fish stocks. Envisat has helped account for their otherwise mysterious arrival.

These jumbo flying squid – Dosidicus gigas is their Latin name – are some of the largest known squids on the planet: the ones here measure between 70 to 150 centimetres in length, although specimens have been known to reach more than three metres. Making their

From Jupiter’s Moon, Io, come ideas about what Earth may have looked like as a newborn planet

Lava lakes could be Ionian versions of Earth’s mid-ocean ridges

Investigations into lava lakes on the surface of Io, the intensely volcanic moon that orbits Jupiter, may provide clues to what Earth looked like in its earliest phases, according to researchers at the University at Buffalo and NASA’s Jet Propulsion Laboratory.
“When I look at the data, it becomes startlingly suggestive to me that this may be a window onto the primitive history of Earth,” said Tracy K. P. G

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