434 L18 Marine Pollution 07.ppt | Invasive Species | Clean Water Act

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  Marine Pollution  Human Effects on the MarineEnvironment   Alteration of bottom by dredging; shoreline alteration and filling  Introduction of toxic substances  Eutrophication through nutrientenrichment  Thermal pollution from power plants  Invasive or nonindigenous species  Important Marine Legislative Acts  Characteristics of Pollution   Acute vs. Chronic Pollution   Acute (short term)  – ex. is an oil spill, the effects of which diminish with time  Chronic (long term)  – ex. is nutrient input
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