Tag: "oceans" at biology news
Hawaiian Whales Show 'No Overt Response' To Sounds Of ATOC Simulation
...ter, shorter travel times would indicate that the oceans
are warming. The $5.7-million Marine Mammal Research Program is headed by Christopher W. Clark, director of the Cornell Bioacoustics Research Program. The Hawaiian ATOC simulation used an underwater speaker about one-tenth the size and one-hundr...
Ocean Sediments Contain Record of Past Vegetation Fires in Africa
..., then their estimates about carbon dioxide in the oceans
may be wrong." Current models have not been able to determine exactly how the total amount of carbon on earth is distributed. According to Verardo, "This new data sheds much-needed light on where the 'missing' carbon may lie: in ocean-bottom...
Changing Continental Runoff Patterns Could Change Ocean Circulation
...r the amounts of freshwater that run off into the oceans
and that could alter ocean circulation patterns." ...salinity of the surface water. Circulation in the oceans
can be caused by colder water sinking below warmer water or saltier, denser water sinking below les...
Siblicide In Nature: Study Of Galapagos Seabird Finds Death Can Ensure Species Survival
...eabirds, masked boobies live and breed in tropical oceans
where they feed by making high-velocity dives. They also kill their own young. In a new study subjecting Darwins evolutionary theories to some of their most rigorous scientific tests to date, biologist David Anderson at Wake Forest University...
Bottom-up Ecological Processes Better For Clear Waters, Study Finds
...h energy moves through food webs? How can lakes or oceans
with similaralgae production vary so dramatically in fisheries production?...
Subtle Biotic Changes Have Big Environmental Impact
...ter. "To what extent could fertilization of the oceans
and alteration of oceanic food webs affect globa...In fact, runoff from land is now enriching coastal oceans
to unprecedented levels, and industrial fishing is causing massive changes in marine food webs. ...
Where Fossils Fear To Tread: Scientists Follow Genes To An Ancient Ancestor
... "evolutionary big bang" took place in the world's oceans
more than 500 million years ago when new animals appeared at breakneck speed. "The reality is that animals with appendages took off and dominated the Earth," at that time Carroll said. "It was like an arms race" with animals that could swim ...
Limits Of Life On Earth: Are They The Key To Life On Other Planets?
...tem where life is postulated to exist, such as the oceans
of Jupiter's moon Europa, are characterized by pressures far greater than those experienced at earth's surface. Relatively little data exists on the nature of barophilic (high-pressure-loving) life forms, or the pressure boundaries within which lif...
New Mathematical Model Could Help Predict Health Of Offshore Areas Where Rivers Enter The Sea
ATHENS, Ga. -- Concern over the health of our oceans
has grown, in the pasttwodecades, from worry to alarm. Coastal waters are crucial links in the food chainof the seas, andnumerous disasters, many of them man-made, have threatened these waters. A new mathematical model, coupling both physical an...
Top Scientists Challenge Others: Join Biodiversity Year
...c boundaries to advance knowledge about the earth, oceans
and atmosphere. "Like the IGY, this process will focus on projects amenable to international cooperation in data collection, with room for scientists from developing nations to participate, however modestly. We expect to integrate what is already kno...
Smog Spreading To South Pacific
... migrating smog has begun topollute the skies over oceans
in the southern hemisphere, resulting intropospheric ozone levels near remote islands that would "trigger a first-stagesmog alert" in Los Angeles, according to a Nobel laureate in atmosphericchemistry. The report identifying tropospheric ozone as a ...
This Year, Earth Day Is All Wet
Take away the oceans
and the planet is a dry, barren place, unable to supportthe multitudes of species -- including humans -- who rely on the rich marineresources the ocean provides. Almost three-quarters of the planet is covered by water, and that water's vitalimporta...
New Study Shows Group Of Marine Bacteria Dominate Offshore Waters Of Southeast, May Play Key Role In Ecosystem Processes
...tually unknown: bacteria. What bacteria are in the oceans
andhow do they live? A new study by marine scientists at the University of Georgia isuncovering intriguing and unexpected clues about marine bacteria. Mostinteresting may be the dominance of bacteria from the so-called "marine alphagroup" in ...
Biggest Acoustics Meeting Ever
...onitoring system, which will listen to the world's oceans
24 hours a day for evidence of nucleardetonations. At the ICA/ASA meeting, Martin W. Lawrence ( firstname.lastname@example.org ) of theComprehensive Nuclear-Test-Ban Treaty Organization in Vienna and others will report the latest progresson this network. (...
ASU Scientists Join NASA Astrobiology Institute
...o be studied to understand the nature of the early oceans
and theconditions of salinity and temperature where life developed. Extending the study of evolution in extreme environments to embrace morecomplex ecosystems, an interdisciplinary team led by biologist Thomas Dowlingwill continue current resear...
Micro-Plants Yield Pharmaceutical New Wave
... biochemically different from microalgae found in oceans
elsewhere, says Dr Susan Blackburn of CSIRO's Col... for Australia's oceans, she said. "Australia's oceans
are immense, and while we are beginning to understand more about its physical conditions and the la...
As A 'Carbon Sponge,' Iron-Poor Coastal Waters Can't Always Do The Job,
Like a sponge, the Earth's oceans
store the greenhouse gas, carbon dioxide--butcerta...gh photosynthesis, Hutchins says. "The role of the oceans
in global climate change is still controversial and notyet fully understood, but biological uptake o...
Minuscule Ocean Plants Help Stabilize Earth's Atmosphere, Climate
...uld be as drastic as "a net efflux of CO2 from the oceans
to the atmosphere;that is, a positive feedback," the authors warned. But they also stressed "suchan analysis is greatly oversimplified, perhaps even naive." Richard Barber, a professor at Duke's Nicholas School of the EnvironmentMarine Labora...
Commercial Fish: Eat Up, Despite Low Levels Of Mercury
... Earth. Then, in apoorly understood process in the oceans
and other bodies ofwater, microbes play a key role...m of mercury be sold.Nearly all fish caught in the oceans
meet this criterion. Are These Recommendations Being Changed? Possibly. Late last year the EPA rec...
Aquaculture: Not An Easy Answer To Overfishing
...ea, the solution to relieve fishingpressure on the oceans
and feed the world," said Jane Lubchenco, a distinguishedprofessor of zoology at Oregon State University and co-author of the report. "What we're finding is that, unless it is done right, some aquacultureis causing more problems than it solve...
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