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Arts and Humanities Commons

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Dissertations, Theses, and Masters Projects

2013

Life Sciences

Articles 1 - 2 of 2

Full-Text Articles in Arts and Humanities

"Here Stands A High Bred Horse": A Theory Of Economics And Horse Breeding In Colonial Virginia, 1750-1780; A Statistical Model, Lily Kleppertknoop Jan 2013

"Here Stands A High Bred Horse": A Theory Of Economics And Horse Breeding In Colonial Virginia, 1750-1780; A Statistical Model, Lily Kleppertknoop

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 Jan 2013

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 ...