http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Cloaked in a delicate brown and cream striped shell and measuring a mere inch in length, the zebra mussel certainly doesn`t look ominous. This tiny invasive species, however, has wreaked havoc in waterways across Europe and North America. http://www.physorg.com/news179997072.html Biology Mon, 14 Dec 2009 08:00:01 EST news179997072 Researchers from the University of Georgia College of Veterinary Medicine have made an "unexpected" dual discovery that could open new avenues for treating Ichthyophthirius multifiliis, or "Ich", a devastating single-celled protozoan parasite that commonly attacks freshwater fish. http://www.physorg.com/news178983586.html Biology Wed, 02 Dec 2009 13:40:59 EST news178983586 Food waste contributes to excess consumption of freshwater and fossil fuels which, along with methane and carbon dioxide emissions from decomposing food, impacts global climate change. In a new paper published in the open-access, peer-reviewed journal PLoS ONE, Kevin Hall and colleagues at the National Institute of Diabetes and Digestive and Kidney Diseases calculate the energy content of nationwide food waste from the difference between the US food supply and the food eaten by the population. The latter was estimated using a validated mathematical model of human metabolism relating body weight to the amount of food eaten. http://www.physorg.com/news178349112.html Space & Earth Wed, 25 Nov 2009 05:50:05 EST news178349112 More than 1,000 freshwater fish species are threatened with extinction, reflecting the strain on global water resources, an updated global "Red List" of endangered species showed Tuesday. http://www.physorg.com/news176449484.html Biology Tue, 03 Nov 2009 06:10:05 EST news176449484 For avid fishermen and anglers, the largemouth bass is a favorite freshwater fish with an appetite for minnows. A new study finds that once they evolved to eat other fish, largemouth bass and fellow fish-feeders have remained relatively unchanged compared with their insect- and snail-eating cousins. As these fishes became top predators in aquatic ecosystems, natural selection put the breaks on evolution, say researchers. http://www.physorg.com/news168016891.html Biology Tue, 28 Jul 2009 16:40:06 EST news168016891 Fifty years ago Friday, President Dwight Eisenhower and Britain's Queen Elizabeth II walked down a red carpet, climbed aboard a "floating palace" of a yacht named Britannia and ceremoniously sailed through the St. Lambert lock near Montreal to hail the opening of the St. Lawrence Seaway. http://www.physorg.com/news165255219.html Space & Earth Fri, 26 Jun 2009 18:20:02 EST news165255219 Increasing urbanisation and more intensive farming are killing New Zealand's freshwater fish species by degrading water quality, says the author of a report published this week by the Ministry for the Environment. http://www.physorg.com/news163944251.html Biology Thu, 11 Jun 2009 13:04:33 EST news163944251 Excess phosphorus and nitrogen produced by human activities on neighboring land is making its way into our coastal waters and degrading both water quality and aquatic life. Although historically the priority has been to control phosphorus, Professor Hans Paerl, from the University of North Carolina in the US, argues that nitrogen imbalance is equally damaging. He adds that a dual nutrient strategy - tackling both phosphorus and nitrogen surplus - is necessary to manage effectively this nutrient over-enrichment and resulting habitat degradation of coastal waters in the long-term. His perspective is published online in Springer's journal Estuaries and Coasts. http://www.physorg.com/news161871031.html Space & Earth Mon, 18 May 2009 13:11:22 EST news161871031 (PhysOrg.com) -- The discovery of a gruesome feeding frenzy that played out 73 million years ago in northwestern Alberta may also lead to the discovery of new dinosaur species in northwestern Alberta. http://www.physorg.com/news161355788.html Other Sciences Tue, 12 May 2009 14:04:26 EST news161355788 It took some of America's best engineers, thousands of laborers and two years of around-the-clock concrete pouring to build the 726-foot-high Hoover Dam back in the 1930s. It took less time than that for the tiny, brainless quagga mussel to bring operators of this modern wonder of the world to their knees. http://www.physorg.com/news155241159.html Biology Mon, 02 Mar 2009 18:33:22 EST news155241159 Researchers are exploring extreme conditions for life in a place not known for extremes. http://www.physorg.com/news154721462.html Space & Earth Tue, 24 Feb 2009 18:11:38 EST news154721462 With climate change threatening to destroy coral reefs, push salt water into freshwater habitats and produce more coastal storms, millions of struggling people in fishery-dependent nations of Africa, Asia and South America could face unprecedented hardship, according to a new study published today in the February issue of the peer-reviewed journal Fish and Fisheries. The study, by a team of scientists at the WorldFish Center, the University of East Anglia, Simon Fraser University, the Centre for Environment, Fisheries and Aquaculture Science, the University of Bremen, and the Mekong River Commission, is the first to identify individual nations that are "highly vulnerable" to the impact of climate change on fisheries. http://www.physorg.com/news153059671.html Space & Earth Thu, 05 Feb 2009 12:34:58 EST news153059671 Sea snakes may slither in saltwater, but they sip the sweet stuff. So concludes a University of Florida zoologist in a paper appearing this month in the online edition of the November/December issue of the journal Physiological and Biochemical Zoology. http://www.physorg.com/news145199096.html Biology Thu, 06 Nov 2008 13:04:56 EST news145199096 Shedding some genetically induced excess baggage may have helped a tiny fish thrive in freshwater and outsize its marine ancestors, according to a UBC study published today in Science Express. http://www.physorg.com/news139157763.html Biology Thu, 28 Aug 2008 15:56:03 EST news139157763