Daily non-political popular news in brief.
Fish extinctions alter critical nutrients in water, study shows
03-02-2007 · EurekAlert!A Cornell study using computer simulations has teased out how extinctions of freshwater fish can affect the availability of certain nutrients that other species rely on.
Read more »
Keywords: fish, extinctions, alter, critical, nutrients, water, study, shows, extinction, nutrient, show
« Previous | Next »
Similar news on "Fish extinctions alter critical nutrients in water, study shows":
- Fish farms drive wild salmon populations toward extinction
12-13-2007 · EurekAlert!
A study appearing in the Dec. 14 issue of the journal Science shows, for the first time, that parasitic sea lice infestations caused by salmon farms are driving nearby populations of wild salmon toward extinction. The results show that the affected pink salmon populations have been rapidly declining for four years. The scientists expect a 99 percent collapse in another four years, or two salmon generations, if the infestations continue.
Similar news · Read more »
- What's in the water? Estrogenic activity documented in fish caught in Pittsburgh's rivers
04-17-2007 · EurekAlert!
A study from the University of Pittsburgh School of Medicine suggests that fish caught in Pittsburgh rivers show evidence of estrogen-like activity, indicating that chemicals that mimic the female hormone may be making their way into the region's waterways. The study, being presented at the annual meeting of the American Association for Cancer Research, also found that when the researchers treated breast cancer cells in culture with fish extracts, the cells grew at increased rates.
Similar news · Read more »
- Ski area affects mountain watershed, UVM study shows
05-17-2007 · EurekAlert!
In the first-ever study to document the effects of ski resort development on water flows and quality in the northeastern US, University of Vermont researchers studied side-by-side watersheds on Mount Mansfield. Their results show greater-than-expected water volume from the developed watershed, suggesting that models derived from timber extraction studies may underestimate the hydrologic effects of resort development. This study provides baseline data that may contribute to new stormwater management approaches in mountainside development.
Similar news · Read more »
- New study shows greenback cutthroat trout involved in recovery effort misidentified
09-05-2007 · EurekAlert!
A new study led by the University of Colorado at Boulder indicates biologists trying to save Colorado's native greenback cutthroat trout from extinction over the past several decades through hatchery propagation and restocking efforts have, in most cases, inadvertently restored the wrong fish.
Similar news · Read more »
- First-ever study: lack of critical lubricant causes wear in joints
11-06-2007 · EurekAlert!
For the first time, researchers have linked increased friction with early wear in the joints of animals. Work led by Brown University physician and engineer Gregory Jay, MD, shows mice that do not produce the protein lubricin begin to show wear in their joints less than two weeks after birth. This finding not only points up the protective power of lubricin but also suggests that it could be used to prevent joint wear after an injury.
Similar news · Read more »
- Study suggests loss of 2 types of neurons -- not just 1 -- triggers Parkinson's symptoms
08-13-2007 · EurekAlert!
New evidence indicates that the loss of two types of brain cells -- not just one as previously thought -- may trigger the onset of symptoms associated with Parkinson's disease. The evidence, based on mouse models, shows a link between the loss of both norepinephrine and dopamine neurons and the delayed onset of symptoms associated with Parkinson's disease. It was originally thought that the loss of only dopamine neurons triggered symptoms. Dopamine is a neurotransmitter critical for coordinating movement.
Similar news · Read more »
- Study finds some kids are being misdiagnosed with asthma
08-30-2007 · EurekAlert!
More than 6 million kids in this country have asthma -- or do they? New research shows many children are being misdiagnosed. Instead of asthma, they may actually have Vocal Chord Dysfunction, a much less serious condition that doesn't require medication. A simple test can show doctors and parents the difference between asthma and VCD.
Similar news · Read more »
- Mucins stand guard against gut infections
07-19-2007 · EurekAlert!
Mucins are large proteins that are secreted on the surface of the gut, and while long regarded as having a role as a barrier to mucosal infection, data to support this theory have been lacking. In a new JCI study researchers show that cell surface mucin 1 (Muc1) plays a critical role in protecting the mucosal lining of the gut from bacterial infection.
Similar news · Read more »
- Nutrient pollution drives frog deformities by ramping up infections, says CU-Boulder study
09-24-2007 · EurekAlert!
High levels of nutrients used in farming and ranching activities fuel parasite infections that have caused highly publicized frog deformities in ponds and lakes across North America, according to a new study led by the University of Colorado at Boulder.
Similar news · Read more »
- Yellowstone's quiet power
02-28-2007 · EurekAlert!
A 17-year University of Utah study of ground movements shows that the power of the huge volcanic hotspot beneath Yellowstone National Park is much greater than previously thought when the giant volcano is slumbering. Findings show gradual ground movements overpower quake movements at Yellowstone, and the hotspot makes the Teton fault behave unexpectedly.
Similar news · Read more »
