| A STUDY ON THE FLUX, SPECIATION, AND BUDGET OFMERCURY IN CONTROLLED EXPEEIMENTAL ECOSYSTEMS |
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| 作者姓名： | 陆贤崑 吴晋平 K.W.Johnson F.A.Whitney C.S.Wong |
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| 作者单位： | Shandong College of Oceanology，Third Institute of Oceanography，SOA，Institute of Ocean Sciences，Sidney，B.C. Canada，Institute of Ocean Sciences，Sidney，B.C. Canada，Institute of Ocean Sciences，Sidney，B.C. Canada |
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| 摘 要： | The lowest addition of mercury (0.1 ug Hg 1-1) was used in CEEs for research on mercury flux, speciation and budget. The removal behavior of mercury by phytoplankton in water columns of CEEs can be described by first order kinetic equations for total and particulate mercury in the CEE spiked by mercury. The removal rate of mercury in water columns depends on the size and productivity of phytoplanton in a water column to which mercuric ions were added. A 4.4 day half-life time and a 2.8 day half-life time for total and particulate mercury respectively was obtained in diatom bloom. During microflagellate bloom a 30 day total mercury half-life time was estimated with increase of particulate mercury in the water column. The 0.010 ug Hg cm-2y-1 mercury flux rate that was attained in the control bag agreed with the values from field measurements in Saanich Inlet where the bags Were launched.The proportion of total mercury to dissolved and particulate mercury depended also on the size, productivity, and concen
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