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1 | 2 | 3 | NextKoi Pond Aeration Will Make a Big Difference in Water Quality 1 Citation The Oxygen level in your Koi pond is something you probably don?t think about very often but it is critical. To ignore it is a big mistake. Some koi owners don?t understand the need for simple aeration of their pond for the health of their fish. This is even more important in the warmest months. , technorati.com
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Saltwater Aquarium Water Parameters 1 Citation Below are some general guidelines for water parameters. Please note these are only a general guidelines and not absolutes. Every aquarium is different and there are always exceptions to the rule. Ammonia (NH3 ? toxic): Zero (undetectable) Nitrite (NO2 ? non-toxic): Zero (undetectable) Nitrate (NO3 ? toxic): Zero (undetectable) is ideal, but less than 20ppm is generally acceptable. pH: 8.0 to 8.4 is generally acceptable. pH will fluctuate based on CO2 levels in your home and a, technorati.com
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Khulna Shrimp Cultivation Area: Thousands suffer from drinking water crisis 1 Citation The Daily Star , April 19, 2009. Amena Khatun, back from Khulna A few decades of shrimp cultivation has rendered the surface and ground water sources too saline for consumption in two upazilas in Khulna and an acute drinking water crisis has arisen in the area affecting thousands of locals. People living in the Dakop and Paikgachha upazilas are suffering from such a severe shortage of safe drinking water that it has resulted in widespread diarrhoea and dysentery in the area. Residents of K, technorati.com
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IRAQ: Death knell for agriculture? 1 Citation IRAQ : Death knell for agriculture? BAGHDAD, 28 April 2009 (IRIN) - Water shortages, high levels of salinity, and desertification appear to have badly affected agricultural production this last winter, according to officials from the Iraqi agriculture and water resources ministries. desertification . ?Our concern is big and unprecedented,? al-Qaisi said. European Commission land management and natural hazards unit . agricro, technorati.com
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Seaglider monitors water from Arctic during record-breaking journey under ice 1 Citation Washington, May 2 (ANI): The University of Washington (UW) has surpassed its 2-year-old world record for operating a glider under the ice, by successfully operating one of its seagliders for six months as it made round trips hundreds of miles in length to monitor water under the ice at Davis Strait. The result contributes to the , technorati.com
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The Oceans Are Getting Saltier 1 Citation The oceans are getting saltier , and it?s apparently in direct response to man-made climate change. Peter Stott, head of climate monitoring and attribution at the Met Office in Exeter, England, determined this after studying 50 years? worth of data and comparing it to climate models ?that correct for naturally occurring salinity variations,? according to ScienceDaily . Stott and his team found that global warming resulting from man-made emissions (as opposed to emissions from natural sources, technorati.com
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Scientists Launching Satellite to Measure Saltiness of Seas 1 Citation Artist?s illustration of the Aquarius/SAC-D spacecraft, scheduled for launch in May 2010. It will be the first NASA instrument to measure sea salinity from space. Credit: NASA/JPL via Science Daily The salinity of the ocean says a lot about climate change and impacts of a warmer globe. That?s something scientists announced a couple years ago . Now, research is turning towards how the oceans? saltiness is changing to try and determine what we can expect for floods, droughts, and even warmer tempe, technorati.com
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New Discovery: bacteria that live without light or oxygen under the Antarctic ice 1 Citation Discovered in an underground lake under the Taylor glacier in Antarctica is an unusual ecosystem where bacteria managed to live for millions of years without oxygen and in complete darkness at 10 º C below zero. The sea water was trapped under the glacier to form a lake that is about four miles long by 400 meters wide. It never froze due to the high salinity of the water, at four times that of ordinary sea water. Researchers from the Universities of Cambridge and Harvard published these findings, technorati.com
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Saltwater + Freshwater = Blue Energy 1 Citation Blue energy, or reverse electrodialysis, generates electricity through the convergence of fresh and salt water using artificial semi-permeable membranes. The technology is currently in use in the Netherlands, but the possibilities for its application exist wherever saltwater and freshwater mix. It?s not a new discovery, but until now, the cost of the membranes has been prohibitive for most applications. photo by spisharam Blue Energy Also called osmotic power or pressure retarded osmos, technorati.com
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