Federal and state scientists studying fish kills on the Potomac and in the Shenandoah region since 2002 report deadly skin lesions and intersex fish. The government says 20 percent of male black bass in river basins nationwide carry immature egg cells. Contaminants are suspected.
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Environment
WARNING: New Evidence Shows Mercury Present in Nearly ALL Fish
A US Geological Survey study detected mercury in every fish sampled from nearly 300 US streams. More than a quarter exceeded the EPA criterion protecting people who eat average amounts of fish, and over two-thirds topped the level of concern for fish-eating mammals.
Environment
New survey finds mercury in fish
A USGS-led survey of fish, sediment and water from streams across the country between 1998 and 2005 found mercury above the EPA's human-health criterion at 27 percent of sites. The authors caution the sampling design does not yield a true nationwide rate.
Food
Fish and omega-3 don't reduce dementia risk
Researchers followed 5,395 Dutch adults aged 55 and over for 9.6 years, during which 465 developed dementia. Those eating the most fish or fatty fish had a risk similar to those eating none, and omega-3 intake showed no link to dementia either.
Food
Eating fish helps prevent eye disease
Two Australian studies in Archives of Ophthalmology tie diet to age-related macular degeneration. In one, following 2,454 people from 1992 to 1994, eating fish once a week was associated with 31% lower risk after adjusting for age, smoking and gender.
Nutrition
Eating fish may explain very low levels of heart disease in Japan
A University of Pittsburgh study in the Journal of the American College of Cardiology compared 868 men aged 40 to 49 and found Japanese men had the least atherosclerosis and twice the omega-3 levels of white or Japanese American men, whose hardening was similar or higher.
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