The impact of eelgrass on heavy metal mobilization

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Marine Sciences Research Center
Brinkhuis, Boudewijn H. (Boudewijn Harm)
Penello, Wayne F.
Marine Sciences Research Center, Stony Brook University
Marine Sciences. , Atmospheric Sciences. , Zostera marina , Marine ecology. , National Sea Grant Program -- New York Sea Grant Institute. , EDTA.
from the abstract, "Release of cadmium and manganese radionuclides from eelgrass leaves and root-rhizome s into seawater and seawater plus. . .(EDTA) was monitored over periods of six hours following incubations of 1 to 98 hours. Flux of both isotopes from tissues is initially rapid , and en­hanced by the addition of EOTA . The initial release rate is in­ dependent of incubation time, indicating desorption of metals from exterior tissue surfaces. High initial release rates become rapidly attenuated . Fitting a power. . to the data proved valuable to inferring uptake capacity of tissues from observed metal release characteristics. In add i ti on to desorption , and diffusion from intercellular spaces and cells, and biologically controlled rel ease could be described with the aid of curve fits. Manganese apparently is released more slowly during latter phases of release, pointing to greater biological accumulation potential. . ."
83 p. : ill. ; 28 cm. Bibliography. "Sponsored by the New York Sea Grant Institute and the Long Island Regional Planning Board." NOTE: the original page 57 of special report 23 contained printing errors, during digital preservation a reproduction of page 57 was made using MS Word 2010 and Adobe Acrobat XI Professional; the original scan of page 57 is included as the .pdf last page.