Exposure of grass shrimp to sediments receiving highway runoff: Effects on reproduction and DNA |
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Authors: | Lee Richard F Maruya Keith A Bulski Karrie |
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Institution: | Skidaway Institute of Oceanography, University System of Georgia, 10 Ocean Science Circle, Savannah, GA 31411, USA |
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Abstract: | A grass shrimp bioassay was carried out on sediments from three estuarine stations which were different distances from a highway storm drain. Total polycyclic aromatic hydrocarbon (PAH) concentrations were 29, 1.5 and 0.1 μg/g sediment at stations A (next to drain), B (100 m from drain) and C (500 m from drain), respectively. Lower embryo production and embryo hatching rates and a higher level of DNA strand breaks (comet assay) were observed in grass shrimp exposed to stations A and B sediments. There appeared to be an association between reproduction abnormalities and increased DNA strand breaks as a result of grass shrimp exposure to estuarine sediments receiving highway runoff. |
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