Posts Tagged ‘rivers’
Asian carp less picky about where to spawn
PURDUE (US) — Scientists are surprised by the places and times that invasive Asian carp are spawning. Continue…
Wednesday, March 20, 2013 13:41 - 0 Comments
Earth & Environment - Mar 7, 2013 5:03 - 0 Comments
Leaky sewers stress out urban watersheds
U. PITTSBURGH (US) — Aging sewer systems in the US are spilling a considerable amount of nitrogen into urban watersheds, diminishing both the quality of water and ecosystem habitats, researchers report. (more…)
Top Stories - Jan 15, 2013 9:23 - 0 Comments
Robofish needs almost no juice to glide
MICHIGAN STATE (US) — A robotic fish equipped with an array of sensors can glide long distances using little to no energy. (more…)
Earth & Environment - Dec 19, 2012 16:31 - 1 Comment
Zapping carp eggs could put people at risk
PURDUE (US) — One of the more promising ideas for controlling or eliminating invasive Asian carp in the Midwest’s rivers is impractical and unsafe, according to new research. (more…)
Earth & Environment - Jul 11, 2012 17:03 - 9 Comments
Interspecies mating in fish exposed to BPA
U. MINNESOTA (US) — The chemical BPA appears to affect the mating choices of fish, leading to interspecies breeding, researchers report. (more…)
Earth & Environment - Jun 29, 2012 12:11 - 3 Comments
Wildlife returns to Britain’s urban rivers
CARDIFF U. (UK) — After decades of pollution, typically from poorly treated sewage and industrial waste, urban rivers throughout England and Wales have improved dramatically in water quality and wildlife. (more…)
Earth & Environment - Mar 13, 2012 15:45 - 0 Comments
Levee breach spared city from brunt of flood
U. ILLINOIS (US) — When faced with a choice between a deluge or a controlled deluge in May 2011 that would protect the city of Cairo, Illinois, the U.S. Army Corps of Engineers chose the latter. (more…)
Earth & Environment - Jan 23, 2012 11:52 - 1 Comment
Amazon basin shows signs of stress
UC SANTA BARBARA (US) — Human land-use activity has begun to change the regional water and energy cycles of parts of the Amazon basin. (more…)
Science & Technology - Dec 2, 2011 15:39 - 0 Comments
‘Speedy’ adaptation genes may save fish
U. OREGON (US) — Two distinct populations of rainbow trout—one in Alaska, the other in Idaho—share a genetic trait that could have huge implications for fisheries, conservation, and management, according to new research. (more…)
Earth & Environment - Nov 16, 2011 13:03 - 5 Comments
Ancient landslide blocked California river
U. OREGON / CALTECH (US) — New evidence suggests a catastrophic landslide 22,500 years ago dammed the upper reaches of northern California’s Eel River and formed a now gone 30-mile-long lake. (more…)
Earth & Environment - Sep 20, 2011 12:46 - 2 Comments
Salmon can’t handle heat in streams
UC DAVIS (US) — Warming streams could spell the end of spring-run Chinook salmon in California by the end of the century, according to a study. (more…)
Top Stories - Sep 19, 2011 10:22 - 1 Comment
Big croc shared river with 42-foot snake
U. FLORIDA (US) — A new 20-foot extinct crocodile species discovered in the same Colombian coal mine may have given Titanoboa, the world’s largest snake, a run for its money. (more…)
Earth & Environment - Mar 3, 2011 13:37 - 0 Comments
Southwest welcomes tree-eating beetle
UC SANTA BARBARA (US) — Simply by eating the leaves of an invasive tree that soaks up river water, an Asian beetle may help to slow down water loss in the southwestern United States. (more…)
Earth & Environment - Oct 14, 2010 17:13 - 0 Comments
Clues to how food chains grow
YALE (US) — New research helps settle an old debate among ecologists about what determines the length of nature’s food chains, which sustain all life on earth. (more…)
Earth & Environment - Aug 17, 2010 9:45 - 0 Comments
Humans flip Texas river’s native carbon cycle
RICE (US)—Damming and other human activity has completely obscured the natural carbon dioxide cycle in Texas’ longest river, the Brazos. (more…)
Earth & Environment - Aug 2, 2010 12:12 - 0 Comments
Robotic sub records flow of undersea river
U. LEEDS (UK)—A team of scientists has used a robotic submarine to observe detailed flows within an deep-sea river for the first time. (more…)
Science & Technology - Jun 14, 2010 14:46 - 2 Comments
Ocean may have covered one-third of Mars
U. COLORADO (US)—A vast ocean likely covered one-third of the surface of Mars some 3.5 billion years ago. The volume of the ancient Mars ocean would have been about 10 times less than current volume of Earth’s oceans, researchers say. Mars is slightly more than half the size of Earth. (more…)
Earth & Environment - Jun 8, 2010 14:50 - 2 Comments
Will oil spill expand Gulf’s dead zone?
MICHIGAN STATE (US)—The worst oil spill in U.S. history could worsen and expand the oxygen-starved “dead zone” in the Gulf of Mexico, known for its inhospitability to marine life, suggests Michigan State University professor Nathaniel Ostrom. (more…)
Earth & Environment - Jun 2, 2010 9:24 - 3 Comments
Steep rise in dioxins from antibacterial soap
U. MINNESOTA (US)—Specific dioxins derived from the antibacterial agent triclosan, used in many hand soaps, deodorants, dishwashing liquids, and other consumer products, account for an increasing proportion of total dioxins found in Mississippi River sediments. (more…)
