Total Mercury in Heron and Egret Eggs and Excreta
Creators:Hoffman, Robert D.
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Citation:The Ohio Journal of Science. v80, n1 (January, 1980), 43-45
Complete clutches of great blue heron (Ardea herodias), black-crowned night heron (Nycticorax nycticorax), and great egret (Casmerodius albus) eggs were collected along with excreta from nesting colonies in southwestern Lake Erie during the 1973 and 1974 breeding seasons and analyzed for total mercury content. Mercury levels in eggs ranged from 0.04 to 0.47 ppm. Mercury concentrations in excreta ranged from 0.09 to 0.48 ppm.
Author Institution: Ohio Cooperative Wildlife Research Unit
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