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Animal Sciences

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Marshall University

2019

Behavior

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Long-Term Effects Of Elevated Manganese On Procambarus Clarkii Behavior, Cody W. Lambert Jan 2019

Long-Term Effects Of Elevated Manganese On Procambarus Clarkii Behavior, Cody W. Lambert

Theses, Dissertations and Capstones

Manganese is a prominent heavy metal within the earth’s crust and a micro mineral essential for biological function, however, high level exposure may lead to neurological defects. Industrial activities allow elevated manganese (Mn2+)to enter air and waterways. The Environmental Protection Agency (EPA) implements secondary standards for aesthetics in drinking water at 0.05 ppm Mn2+, although evidence indicates levels at, or below this concentration negatively impact aquatic life. Crayfish (Procambarus clarkii) were exposed to environmentally relevant Mn2+ concentrations for 6 months, while the control group was kept in reconstituted fresh water for the same time period. …