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27 April 2018
Growing ‘dead zone’ confirmed by underwater robots in the Gulf of Oman
New research has confirmed a dramatic decrease in oxygen in the Gulf of Oman part of the Arabian Sea.
15 December 2010
Pumping oxygen into lakes may reduce mercury contamination
Doctors sing the praises of the fatty acids found in fish, but lament the toxic affects of eating fish contaminated with mercury. Fisherman are warned against taking fish from nearly one-third of lakes in the U.S. because of high concentrations of mercury. In some freshwater lakes, the most harmful form of mercury, methylmercury, tends to build up in oxygen-free layers that occur at the bottom of the body of water. But injecting oxygen just above the lake’s bottom affects the levels of methylmercury in the water, a new study finds.
Too much fertilizer is bad for biofuels
Like fast food junkies who pile on extra fries because it’ll only cost a couple cents more, growers in the U.S. dump tons of fertilizer on their fields because it’s cheap and the extra food can’t hurt their crops, right? Well, for farmers raising corn for the food and biofuel business that might not be such a good idea.
22 February 2010
How low (in oxygen) will seafloor scavengers go for a treat?
“Cadavers in Support of Forensic and Hypoxia Research”: This title of an Ocean Sciences abstract immediately grabbed my attention. Why would oceanographers dump pig corpses in the sea and watch with cameras as the bodies decomposed? For starters, the pigs are perfect proxies for human cadavers, so they allow forensic experts to study how sea creatures scavenge the remains of homicide victims thrown into the sea, says Verena Tunnicliffe, a professor at the University of Victoria, …