Abstract
We assessed the distribution of mercury in snapping turtles(Chelydra serpentina) by analyzing front shoulder muscle,back leg muscle, tail muscle, blood, liver, and marginalcarapacial scute (shell) of 26 adult turtles from five smalllakes. Total mercury concentration in muscle ranged from 50 to500 ng g−1 wet weight and was highly correlated among the threetissue locations. There was no relationship between musclemercury concentration and body size. Mercury concentration inblood was similar to muscle; the correlation with muscle mercuryconcentration was significant but there was some variability. Mercury concentration in shell was much higher than in muscle orblood, ranging from 500 to 3300 ng g−1, and was highly correlatedwith muscle mercury concentration. Liver mercury concentrationwas similar to shell, but was highly variable and uncorrelatedwith any other tissue. We conclude that snapping turtlesaccumulate mercury from their environment and may be usefulmonitors of mercury contamination.
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Golet, W.J., Haines, T.A. Snapping Turtles (Chelydra serpentina) As Monitors for Mercury Contamination of Aquatic Environments. Environ Monit Assess 71, 211–220 (2001). https://doi.org/10.1023/A:1011802117198
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DOI: https://doi.org/10.1023/A:1011802117198