| nineteenth century mercury: hazard to wading birds and cormorants of the carson river, nevada. | contemporary mercury interest relates to atmospheric deposition, contaminated fish stocks and exposed fish-eating wildlife. the focus is on methylmercury (mehg) even though most contamination is of inorganic (iohg) origin. however, iohg is readily methylated in aquatic systems to become more hazardous to vertebrates. in response to a classic episode of historical (1859-1890) iohg contamination, we studied fish-eating birds nesting along the lower carson river, nevada. adult double-crested cormor ... | 2002 | 12211695 |
| mercury and drought along the lower carson river, nevada: i. snowy egret and black-crowned night-heron annual exposure to mercury, 1997-2006. | the dynamic nature of the annual volume of water discharged down the carson river over a 10-year period, which included a century flood and drought, was examined in order to gain a better understanding of mercury movement, biological availability, and exposure to waterbirds nesting at lahontan reservoir. total annual water discharge directly influenced total mercury (thg) in unfiltered water above the reservoir and downstream of a mining area, whereas methyl mercury (mehg) at the same site was n ... | 2007 | 17587144 |
| mercury and drought along the lower carson river, nevada: ii. snowy egret and black-crowned night-heron reproduction on lahontan reservoir, 1997--2006. | mercury concentrations in the floodplain of the carson river basin in northwestern nevada are some of the highest ever reported in a natural system. thus, a portion of the basin including lahontan reservoir was placed on the u.s. environmental protection agency's natural priorities list for research and cleanup. preliminary studies indicated that reproduction in piscivorous birds may be at risk. therefore, a 10-year study (1997--2006) was conducted to evaluate reproduction of snowy egrets (egret ... | 2008 | 17994274 |
| mercury and drought along the lower carson river, nevada: iii. effects on blood and organ biochemistry and histopathology of snowy egrets and black-crowned night-herons on lahontan reservoir, 2002-2006. | a 10-year study (1997-2006) was conducted to evaluate reproduction and health of aquatic birds in the carson river basin of northwestern nevada (on the u.s. environmental protection agency natural priorities list) due to high mercury (hg) concentrations from past mining activities. this part of the study evaluated physiological associations with blood hg in young snowy egrets (egretta thula) and black-crowned night-herons (nycticorax nycticorax), and organ biochemistry and histopathological effe ... | 2009 | 20077191 |