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Full-Text Articles in Life Sciences
Cognitive And Physiological Moderators Of Daily Smokers' Early Neural Attentional Biases To Smoking And Nonsmoking Cues, Patrick John Hammett
Cognitive And Physiological Moderators Of Daily Smokers' Early Neural Attentional Biases To Smoking And Nonsmoking Cues, Patrick John Hammett
Dissertations, Theses, and Masters Projects
No abstract provided.
Ecologically-Framed Mercury Database, Exposure Modeling And Risk/Benefit Communication To Lower Chesapeake Bay Fish Consumers, Xiaoyu Xu
Dissertations, Theses, and Masters Projects
Mercury concentrations and determinants of mercury accumulation were examined for ten finfish species from the lower Chesapeake Bay and its tributaries. None of the sampled fish had total mercury concentrations approaching the U.S. EPA human health screening value. Mercury concentrations in different fish species generally increased with increasing delta 15N, but not delta 13C, suggesting that trophic position, but not dietary carbon source was a dominant determinant. A methylmercury biomagnification model was built to estimate a food web magnification factor of approximately 10-fold increase per trophic level in Chesapeake Bay. Based on otolith strontium-calcium ratios, Atlantic croaker inhabiting less saline …