Tag: "freshwater" at biology news
Institute of Ecosystem Studies director and scientist honored by the Botanical Society of America
...te is now a global leader in long-term research on freshwater
ecology, forest health, disease ecology, biogeochemistry, and urban ecology. Before founding the Institute, Dr. Likens was on the faculty at Cornell University and Dartmouth College. He received his undergraduate education from Manchester College, ...
USGS Science at Ecological Society of America
...(Eichhornia crassipes), nutria (Myocastor coypus), freshwater
crawfish (infraorder Astacidea), and top level fish predators will be discussed. No sign of saturation of plant and bird communities in the United States, 9:40 a.m. Thomas Stohlgren, USGS Fort Collins Science Center, Fort Collins, Colo. Parent ses...
Scientists identify gene involved in stem cell self-renewal in planaria
CHAMPAIGN, Ill. -- No matter how you slice it, the freshwater
planarian possesses an amazing ability to regenerate lost body parts. Chop one into pieces, and each piece can grow into a complete planarian. The flatworm relies upon a population of stem cells to accomplish this remarkable feat; recent work sheds l...
Ecosystem services and invasive species
... after other scientists to document changes in the freshwater
mussels. "It seems only appropriate that while...ng states contain the world's richest diversity of freshwater
mussels. How can we start to protect these mussels, if we don't even know what's in our local river...
Loss of just one species makes big difference in freshwater ecosystem, study finds
...hat the removal of just one important species in a freshwater
ecosystem can seriously disrupt how that environment functions. This finding contradicts earlier notions that other species can jump in and compensate for the loss. Brad Taylor, currently a research associate in the department of biological scienc...
A new tool against brain disease
..."locks" represented both by binding proteins (from freshwater
snails and a sea slug) and by actual nicotinic receptors, which came from rat cells but were grown in frog eggs. That allowed the researcher to grow various subtypes of the nicotinic receptors and see how well the toxin fit them. Taylor and Han pr...
Water filtration technique removes dangerous freshwater algae toxins
...science at Ohio State . Microcystis is native to freshwater
lakes and rivers around the country, and secretes toxins that can cause liver damage in animals including humans. Worsening environmental pollution in Lake Erie during the last decade has caused algal blooms, the most recent of which began this Augus...
Study provides first-ever look at combined causes of North Atlantic and Arctic Ocean freshening
...LE, MA -- A new analysis of 50 years of changes in freshwater
inputs to the Arctic Ocean and North Atlantic may ...trends in the Arctic. Their analysis reveals that freshwater
increases from Arctic Ocean sources appear to be highly linked to a fresher North Atlantic. "The ...
What's shaped like a pear and has two genomes? Check the pond
...If you could peer microscopically into the closest freshwater
pond, you'd hesitate before dipping a toe. Amid the murky water, you'd probably notice an oddly furry, pear-shaped organism gliding along--and gobbling up everything in its path. This tiny predator has a big name-- Tetrahymena thermophila --and a ...
Fishing trade helps Africa
... domestic poor, including sardines, anchovies, and freshwater
species like catfish and tilapia. (Of more concern is the growing export trade in lower-value species from West-African waters, mainly to markets in the Far-East, with China emerging as a major buyer.) Though the export of fish from developing coun...
Ingredient in Prozac increases risk of extinction for freshwater mussels
...u'd think in a river filled with anti-depressants, freshwater
mussels would be, well, happy as clams. Far from i...cological effects of Prozac (fluoxetine) on native freshwater
mussels, found that the drug caused females to prematurely release their larvae, essentially dooming...
ACS Weekly PressPac -- September 6, 2006
...redient in Prozac increases risk of extinction for freshwater
mussels Brown seaweed contains promising fat fight...redient in Prozac increases risk of extinction for freshwater
mussels One of the first studies to examine the ecotoxicological effects of Prozac (fluoxetine) o...
Prozac exposure found to disrupt mussel reproduction
...ssant can interfere with the reproductive cycle of freshwater
mussels--at least in a controlled setting. The res...ve serotonin reuptake inhibitor (SSRI) on a native freshwater
mussel (Elliptio complanata). Fluoxetine, sold under the trade name Prozac TM , is one of the most h...
Boat paint to blame for Norfolk Broads' desolation
...e to blame. Though the use of TBT was banned in freshwater
systems in the UK in 1987, the researchers say 40 ...lected as a driver of environmental destruction in freshwater
wetlands and even though it is no longer in use in UK inland waterways, TBT contamination and its ne...
China's environmental challenges
...t least 1.3, putting the country's already fragile freshwater
systems under greater strain. The authors wonder: will China "..continue down the same road as in the past two decades, or will environmental quality, energy efficiency, and the conservation of resources no longer be sacrificed at the altar of econo...
Texas researchers casting for answers to stop algae problem in Texas lakes
...aid. Also, the organism grows poorly in completely freshwater
systems, such as lakes in East Texas where annual rainfall rates are high. "Our lakes located in Central and West Texas, however, tend to be salty because they receive little inflow due to rainfall," Roelke said. "The lack of rainfall is what cause...
A salinity study in the Mobile Delta region
...When salinity is low, milfoil fragments from these freshwater
refuges end up in nearby estuarine grassbeds, where they subsequently outgrow and competitively displace native submerged grasses. To test these hypotheses, Dr. John Valentine and Marine Technician Susan Sklenar, both of the Dauphin Island Sea Lab...
Special chip provides better picture of salmon health
...ein metabolism, bacterial and viral infection, and freshwater
to seawater adaptation. The DNA chip will be able to identify changes in the activity of these genes and so alert us to any potential problems. It is too early to tell whether this chip will be a commercial success, but it certainly has the potential...
Scientists find lamprey a 'living fossil'
.... However, earlier this year, Nature reported on a freshwater
lamprey fossil found in the Jehol biota of China (Inner Mongolia) from the Early Cretaceous period (about 125 million years ago). The newly discovered South African fossil shows that these anatomically specialized fish are "holdovers" from ancient m...
Open Science Conference to focus on regional sustainability challenges to the Earth system
...worldwide. Parallel Session 21, How do coastal and freshwater
systems interact under the global water system? Water Experts: Joe Alcamo, Felino Lansigan, Robert Naiman, Charles Vorosmarty Human Health The scientific community recognises the growing need to better understand the multi-faceted and complex lin...
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