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Southern Ocean seals dive deep for climate data

Elephant seals are helping scientists overcome a critical blind-spot in their ability to detect change in Southern Ocean circulation and sea ice production and its influence on global climate. According to a paper published today by a team of French, Australian, US and British scientists in the ...

Holding breath for several minutes elevates marker for brain damage

...ing dozens of times per day. Some divers routinely dive to depths of 90 feet on a single breath while others dive in the 15-30 foot range. More recently, breath-...e conditions were dry, but mimicked a static apnea dive in which the divers float face down holding their ...

URI researcher sheds light on 'man-eating' squid; finds them timid, nonthreatening

...ld kill or maim unsuspecting divers. "Private dive companies in Mexico play up this myth by insisting that their customers wear body armor or dive in cages while diving in waters where the squid ar...hed off to the periphery. The URI researcher's dive was more than just a personal test. It was part o...

URI researcher sheds light on 'man-eating' squid; finds them timid, non-threatening

...ld kill or maim unsuspecting divers. "Private dive companies in Mexico play up this myth by insisting that their customers wear body armor or dive in cages while diving in waters where the squid ar...hed off to the periphery. The URI researcher's dive was more than just a personal test. It was part o...

Natural-born divers and the molecular traces of evolution

...ry pressure, they went on to study the molecular sequence of myoglobin in small aquatic mammals such as beavers, muskrats and water shrews, which only dive for considerably shorter periods of time, to see if they could also find evidence for the same trend. Indeed, the net charge of the myoglobin molecu...

Scientists announce top 10 new species, issue SOS

...millimeters). This pygmy species was found near Derawan Island off Kalimantan, Indonesia. The name satomiae is "in honour of Miss Satomi Onishi, the dive guide who collected the type specimens." From the plant kingdom is a gigantic new species and genus of palm Tahina spectablilis with fewer than...

Scientists announce top 10 new species; issue SOS

...millimeters). This pygmy species was found near Derawan Island off Kalimantan, Indonesia. The name satomiae is "in honour of Miss Satomi Onishi, the dive guide who collected the type specimens." From the plant kingdom is a gigantic new species and genus of palm Tahina spectablilis with fewer than...

Shark attacks decline worldwide in midst of economic recession

... GAINESVILLE, Fla. The recession may be responsible for a slump of a different sort: an unexpected dive in shark attacks, says a University of Florida researcher. Shark attacks worldwide in 2008 dipped to their lowest level in five years, a sign that ...

New version of Google Earth features California's marine protected areas

...s on more than 4,500 Marine Protected Areas around the world are available through the newest version of Ocean in Google Earth, which enables users to dive beneath the surface of the sea and explore the world's oceans. The new Google Earth feature also contains content from Protect Planet Ocean, a Web...

Census of Marine Life and ocean in Google Earth bring ocean information to life

...r in Ocean in Google Earth. Ocean in Google Earth, which enables user to dive beneath the surface of the sea and explore the world's oceans, was launched...the California Academy of Sciences in San Francisco, CA. "There's no better dive than what's riding along with Census of Marine Life researchers," says Patr...

Finalists announced in the Elsevier Grand Challenge

...many, for "Reflect: Automated Annotation of Scientific Terms" Vıt Novacek, Tudor Groza, Ioana Hulpus, and Siegfried Handschuh, Ireland, "CORAAL dive into Publications, Bathe in the Knowledge " Amr Ahmed, Andrew Arnold, Luis Pedro Coelho, Joshua Kangas, Abdul-Saboor Sheik, Eric Xing, William Cohen ...

4 years after tsunami: Corals stage comeback

...anting corals to recover damaged areas. For example, Dodent Mahyiddin, a dive operator on Weh Island, leads an effort to transplant corals onto hand-laid...r structures to restore a badly damaged reef in front of the remains of his dive shop, which was also destroyed by the tsunami. Already he is seeing widesp...

UBC researcher reveals humpback whales' dining habits -- and costs

...e mammals are known for their extraordinarily long dive times. Elephant seals, for example, can stay under...es and their close relatives have relatively short dive times given their large body size," says UBC zoolo...ales literally drop their jaws during a high-speed dive called a lunge creating enormous drag akin to a ...

1,000 tags reveal mysteries of giant bluefin tuna

...om both Gulf of Mexico and Mediterranean stocks in waters along the U.S. continental shelf. The electronic tags have also revealed these giant tuna dive to depths of nearly a mile and range through waters from the tropics to frigid polar seas. They can do so because bluefins are among the rare ocean an...

Study sheds new light on dolphin coordination during predation

...ed, and then the group rose as one to the surface to breathe, maintaining their circle. The dolphins would take one breath, Benoit-Bird said, and then dive down and begin the process anew. "If one or two individual dolphins would break the circle or head to the surface to breathe, it breaks their whole...

Scientists call for protected 'swimways' for the endangered leatherback sea turtle

...st members of an ancient lineage that has outlived the dinosaurs, leatherback sea turtles are ocean giants that grow to the size of small automobiles, dive more than half a mile deep, and migrate across the entire Ocean basins to feed in the jellyfish-rich waters off the west coast of North and South Amer...

KAUST and IBM to build 1 of the fastest and most powerful supercomputers

...o the further development of a knowledge-based society in Saudi Arabia. Shaheen is the Arabic word for the Peregrine falcon, a bird which can reach dive speeds of up to 213 miles (or 342 kilometers) per hour. Similarly, the 16-rack Blue Gene/P System , capable of 222 Teraflops - or 222 trillion float...

Unique study shows oil, gas seismic work not affecting Gulf sperm whales

... toothed whales and can reach lengths of 60 feet or more and live 60 years or longer. Their primary diet is squid and fish and they have been known to dive as deep as 7,000 feet. Humans no longer hunt them for their oil, but the whale in Herman Melville's classic novel Moby Dick was a sperm whale. Sperm...

Successful series of measurements in Arctic sea ice

...f a seaglider from Polarstern. This is an autonomous vehicle which regularly submerges from the surface to a depth of 1.000 metres. It measures on its dive temperature, salinity, oxygen, opacity of the water, and pressure; then it resurfaces and sends these data via satellite to Bremerhaven. From there, i...

Tiny invasive snail impacts Great Lakes, alters ecology

...at are apparently not affected before infecting the snails. This might work in the west where the snails are in shallow water, but no duck is going to dive 100 feet to get snails." Levri and his team found that in Lake Ontario, the densities of the snails peak between 50 and 82 feet and they were rare...

Life in a bubble

...nsects can stay below the surface indefinitely and dive as deep as about 30 meters, according to the study...researchers are the first to calculate the maximum dive depths and describe how the bubbles stay intact as insects dive deeper underwater, where pressure threatens to bur...

Dry Tortugas show positive trends: Protected area slowly rebounding

... of Miami RSMAS (Chief Scientist & Co-Principal Investigator) Dr. G. Todd Kellison, NOAA Fisheries (Co-Principal Investigator) Dave McClelland, NOAA dive Safety Officer Dr. Steven G. Smith, University of Miami, Mission Logistics Doug Harper, NOAA Fisheries, Mission Information Management Dr. Jiangang...

Bikini corals recover from atomic blast

...una and Napoleon Wrasse fishing, the reef is almost completely undisturbed to this day. There are very few local inhabitants and the divers who visit dive on shipwrecks, like the USS Saratoga, and not on the reef says Maria. Because of its incredible history and current undisturbed character Bikini At...

New fish has a face even Dale Chihuly could love

... Husband and wife Buck and Fitrie Randolph, with dive guide Toby Fadirsyair, found and photographed an i...phs are part-owners of Maluku Divers, a land-based dive facility in Ambon City. Toby Fadirsyair, who works...water natural history photographer who was able to dive with Maluku Divers and take additional photos of t...

How alligators rock and roll

...s. One set of muscles played no role in moving the lungs to help the gators dive and maneuver, but four did: The diaphragmaticus, which plays a role ...rk together to help an alligator shift its lungs so it can rock downward to dive or roll side-to-side. The tail also helps gators roll. The mu...

To save or savor? It's decision time for Atlantic bluefin tuna

.... Block and her students have uncovered remarkable details about the journeys of these giant fish, which can swim thousands of miles in a year and dive almost a mile below the surface. What she has learned is guiding decisions made by international managers and may lay the foundation for taking acti...

Medical breakthrough for organ transplants and cardiovascular diseases by Flemish researchers

...tle less? Some animals can survive in places with little oxygen. Birds at high altitudes, for example, or animals that live underground or that can dive under water for a long time. Hibernating animals turn their bodily processes down low and live with a reduced amount of oxygen. We can detect ch...

Why diving marine mammals resist brain damage from low oxygen

...s frequent gulps of air. Our brains need a constant supply of oxygen, particularly during exercise. Contrast that with Weddell seals, animals that dive and hunt under the Antarctic sea ice. They hold their breath for as long as 90 minutes, and remain active and mentally alert the whole time. The seals...

Marine scientists warn human safety, prosperity depend on better ocean observing system

...and salinity data captured by the tags are transmitted via satellite as the creatures travel. Elephant seals, for example, spend 10 months at sea and dive up to 1.5 km below the ocean surface. Acoustic tags deployed by another CoML project, POST (Pacific Ocean Salmon Tracking), allows researchers to...

Human safety, prosperity depend on better ocean observing system: Scientists

...and salinity data captured by the tags are transmitted via satellite as the creatures travel. Elephant seals, for example, spend 10 months at sea and dive up to 1.5 km below the ocean surface. Acoustic tags deployed by another CoML project, POST (Pacific Ocean Salmon Tracking), allows researchers to...

Divers find new species in Aleutians

... region. During the dives, two potentially new species of sea anemones have been discovered. Stephen Jewett, a professor of marine biology and the dive leader on the expedition, says that these are "walking" or "swimming" anemones because they move across the seafloor as they feed. While most sea anem...

Migrating squid drove evolution of sonar in whales and dolphins, researchers argue

... they live entirely in the deep ocean, the many species of the beaked whale dive nearly as deep. Belugas and narwhals descend beyond 1,000 meters, while mem...n family - porpoises, killer whales and pilot whales, for example - all can dive below the 200-meter mark where sunlight is reduced to darkness. Accordin...

Scientists discover 5 new species of sea slugs from the Tropical Eastern Pacific

...ided by private donors Roberto Chavez, Steve Drogin and Buceo Vallartech, a dive shop in Puerto Vallarta. And by STRI staff scientist D. Ross Robertson. ... for Roberto Chavez, who provided assistance during fieldwork and suggested dive sites. Cuthona destinyae came out of hull scrapings from the M/V Dest...

Tracking sperm whales and jumbo squid

...umbo squid of large body size," the authors wrote. "Whales did occasionally dive beyond 500 meters, especially during daytime when the squid were deep, and ...y hypoxia at depth during the daytime, or at night after it has made a deep dive to escape the warm, stressful conditions at the surface. "By hunting d...

Seals protect brain, conserve oxygen by turning off shivering response on icy dives

...eals shiver just like other animals. But when they dive below the surface in frigid water, shivering is sw... and lowered oxygen requirements which extends the dive time, Folkow said. Taking the plunge T...lable just in case. This study found the seals can dive to more than 1,000 meters and for more than an hou...

Pollution threatens coral health by preventing lesions from healing, UCF study shows

...rm surge in the same manner that sea walls do. "We're losing places where animals can hide and fish can feed," Fauth said. "And reefs where people dive are being degraded." Tissue samples from mustard hill coral were taken from eight Broward County sites, including near-shore and offshore location...

Ecologists home in on how sperm whales find their prey

...ition and movement are required, the researchers believe. Dr Stephanie Watwood and colleagues found that sperm whales produced buzzes on every deep dive they made, in all three locations, suggesting that they are highly successful at locating prey in the dark ocean depths. The sperm whale is the wor...

Deep-water discovery

...opography of the whole canyon based on small swaths revealed by the flashlight. The Rosenstiel School AUV work has instead made it possible to choose dive sites likely to be vibrant reef areas, all with an understanding of the full system being explored. The expedition will have two main goals. First...

Drug discovery team to explore newly discovered deep-sea reefs

...ficance and topography of the whole canyon based on small swaths revealed by the flashlight. The Miami AUV work has instead made it possible to choose dive sites likely to be vibrant reef areas ahead of time, all with an understanding of the full system being explored. The expedition will have two mai...

High-tech tags on marine animals yield valuable data for biologists and oceanographers

...ed harmlessly onto the fur of a seal or sea lion, and will stay on for several months before falling off when the animal molts. Data recorded during a dive are transmitted to satellites when the animal comes to the surface to breathe. Costa's group has been providing water temperature and salinity dat...
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