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Divers in Biological News

Natural-born divers and the molecular traces of evolution

An aquatic lifestyle imposes serious demands for the organism, and this is true even for the tiniest molecules that form our body. When the ancestors of present marine mammals initiated their return to the oceans, their physiology had to adapt radically to the new medium. Dr. Michael Berenbrink a...

Holding breath for several minutes elevates marker for brain damage

... BETHESDA, Md. (August 4, 2009) divers who held their breath for several minutes had elev...e researchers recommended further research on free divers that would begin early in their careers and follow... although the occupation has been dying out. These divers harvest seaweed, shellfish and other growth from t...

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

... July 23, 2009 News reports last week about scuba divers off San Diego being menaced by large numbers of Hu...ute was diving with the impressive animals. Other divers participating were Lloyd Trueblood of URI, Steve H... potential for dangerous interactions, he said, so divers should use caution. "However, I want to spread...

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

... July 23, 2009 News reports last week about scuba divers off San Diego being menaced by large numbers of Hu...ute was diving with the impressive animals. Other divers participating were Lloyd Trueblood of URI, Steve H... potential for dangerous interactions, he said, so divers should use caution. "However, I want to spread...

Overfishing and evolution

... Using snorkelers and SCUBA divers is not the best way to monitor fish populations, if we want to know the evo... fish. A study from the University of Victoria shows that fish avoid the divers and snorkelers who try to count them. Not all types of fish are equally fri...

Toward cheap underwater sensor nets

...ool, Benson serves as the Southern California volunteer coordinator for the nonprofit organization Reef Check. Benson oversees the training of veteran divers to conduct surveys of the species living in reefs from Santa Barbara to San Diego. "Our volunteers learn how to identify fish and other organisms a...

EPA to study Puerto Rico waters and marine habitat

...use up to 18 scientists, 19 crew members and remain at sea for weeks as they collect water quality and sediment samples, fish and other organisms. EPA divers working off the OSV BOLD monitor coral reefs, and other sensitive habitats for impacts from pollution. The OSV BOLD operates in the waters of the Atla...

DNA evidence is in, newly discovered species of fish dubbed H. psychedelica

...ally found Pietsch to help them identify the fish. Since the first sighting divers have observed a number of adults and juveniles, now that they know what to ...en't previously spotted. When a member of H. psychedelica is uncovered by divers it usually seeks a new place to hide within 10 or 15 minutes. And while ...

Little Salt Spring underwater archeological site in Florida receives new funding

...reserve was donated to the University in 1982. In 2005, UM began an ongoing partnership with the Florida Aquarium (Tampa) who provides volunteer SCUBA divers to assist in the underwater research. In 2008, researchers from Washington State University and Pennsylvania State University began long-term collabor...

Unusual microbial ropes grow slowly in cave lake

...si cave system in Italy and more than 1,600 feet below the Earth's surface, divers found filamentous ropes of microbes growing in the cold water, according to...ping to obtain more microbial rope samples this summer. They will work with divers to get samples from the deepest and shallowest ends of the ropes in order t...

First comprehensive 'inventory' of life in Antarctica

...ersity of Hamburg, describe how they combed the land, sea and shores of the South Orkney Islands, near the tip of the Antarctic Peninsula, using scuba divers and trawled nets to catch creatures as deep as 1500 metres. Animals recorded were then checked with a century of literature and modern databases an...

Athletes' 'sweat and tears' linked to asthma

... former medical officer with the US Navy SEALS, Dr. Lockette also knew that a diagnosis of asthma would preclude many young sailors from becoming Navy divers or special warfare operators. He teamed up with investigators at Naval Medical Center San Diego to try to understand the mechanisms by which asthma at...

Dry Tortugas show positive trends: Protected area slowly rebounding

... VIRGINIA KEY, Fla. -- A team of 38 research divers from the University of Miami (UM) Rosenstiel School of Marine and Atmospher...2008 Mission Total length of expedition = 20 days Number of research divers = 38 total Number of research dives or surveys = 1,710 a new record for t...

8-day undersea mission begins experiment to improve coral reef restoration

...were to return to the surface quickly, they would get the bends--an often deadly illness in which tiny bubbles form inside the body. As a result, the divers at the end of their mission must spend an entire day depressurizing by making their way to the surface slowly." A molecular ecologist, Baums is pro...

Shrimps see beyond the rainbow

.... Dr Kleinlogel, is based at the Max Planck Institute for Biophysics in Frankfurt, and collected the shrimp from the reef. She notes that, ...scuba divers know them as 'thumb-splitters', they've got wickedly strong claws and are very aggressive! Most animals can tell how fast the electric field in a l...

Bikini corals recover from atomic blast

... illegal shark, tuna 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 char...

New fish has a face even Dale Chihuly could love

...an underwater natural history photographer who was able to dive with Maluku divers and take additional photos of the new find. "They must have pretty tough sk... . "Seeking out these fish is probably going to be like the Holy Grail of divers for a while," Shorten says. Indeed just do a Google search for "new frogfis...

Butterfly fish 'may face extinction'

... A beautiful black, white and yellow butterflyfish, much admired by eco-tourists, divers and aquarium keepers alike, may be at risk of extinction, scientists have warned. The case of the Chevroned Butterflyfish is a stark example of how...

Human deaths from shark attacks hit 20-year low last year

...Carolina, two; and Texas, one. Fifty-six percent of the 2007 victims were surfers and windsurfers; followed by swimmers and waders, 38 percent; and divers and snorkelers, 6 percent. Last years Sept. 30 fatal attack involved a 23-year-old woman from France who was snorkeling off the Loyalty Islands arc...

How baby fish find a home

...ly, tracking how fish larvae migrate was done through direct observation by divers on older larvae found near the reefs, after theyd spent weeks to months in the plankton. This method did not permit divers to follow small larvae, diving larvae or larvae as they returned to the ree...

Oceans Past: A Guide to Oceans Future

...of the fishery north to the Gulf Coast. Commercial divers from Greece could take sponges from water depths u... out-compete traditional fishermen. In 1905, Greek divers began to arrive in Florida in gold rush proportion...he disease had made its way up the coast and Greek divers observed extensive sponge mortality as deep as 70 ...

Fossils excavated from Bahamian blue hole may give clues of early life

...no oxygen, which normally would feed the bacteria and fungi that cause bones to decay, Steadman said. Expert diver Brian Kakuk and other skilled scuba divers retrieved the fossils from various places along the floor and walls of the blue hole, which contains salt water covered by a layer of freshwater. T...

Laser can spot illness before symptoms appear

...h-resolution image. The Navy could eventually use this technology on all divers or pilots returning to the surface. By shining the laser on one of these in...ssion sickness. With continued research, everyone from highly trained naval divers and pilots, to astronauts and seaside vacationers could benefit. ...

Divers find new species in Aleutians

...f the Aleutians, according to a team of scientific divers from the University of Alaska Fairbanks. This s...lands. Logging more than 300 hours underwater, the divers collected hundreds of water, biological and chemic...med with underwater cameras and video cameras, the divers took hundreds of photographs and dozens of short m...

Researchers discover forests of endangered tropical kelp

...e from rare field observations. The research team tested the model by traveling to the predicted habitat, where they searched for the kelp. Scuba divers -- including students from CSU Monterey Bay, CSU East Bay and UC Davis -- found the kelp forests from 40 to 200 feet below the surface, making the mis...

Rare albino ratfish has eerie, silvery sheen

...l jaws and grinding teeth able to crack the shells of crabs and clams require caution by researchers and fishermen who handle them. Ratfish don't bite divers or swimmers in the water, Reum says, but they get snappish when brought on board. And then there's that venomous spine. Located on their back, jus...

Tracking sperm whales and jumbo squid

... The sperm whale and its large prey, the jumbo squid, are among the deepest divers in the ocean, routinely reaching depths of 3,000 feet or more. Now, in a new study, a team of marine scientists reports the successful tagging of sper...

NASA satellite data helps assess the health of Florida's coral reef

... reefs are resilient to environmental changes and impacts. The work may also identify ways to care for reefs worldwide. At nearly 175 sites, scuba divers recorded the number and species of coral and the extent of bleaching -- corals turn white when tiny algae that live inside them die. Bleaching is a sy...

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

...ge as chronic problems along Florida's southeast coast. The loss of coral harms natural reef ecosystems and can hurt Florida's tourism economy if divers decide to go elsewhere. Reefs also help to protect coastal areas from hurricanes, as they break up storm surge in the same manner that sea walls do. ...

Researchers use 3-D imaging system to unveil swimming behavior of microscopic plankton

...nd at Ras Burka on the coast of Egypt's Sinai Peninsula. At the sites scuba divers attached Fish TV's sonar head ("transducer") on a large underwater tripod r...on of such tiny creatures in three dimensions from two meters away." The divers frequented the underwater setup to sample the animals, reorient the transdu...
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