Influence of feeding ecology on blood mercury concentrations in four species of turtles

  title={Influence of feeding ecology on blood mercury concentrations in four species of turtles},
  author={Christine M. Bergeron and Jerry F. Husak and Jason M. Unrine and Christopher S. Romanek and William A. Hopkins},
  journal={Environmental Toxicology and Chemistry},
Mercury is a relatively well‐studied pollutant because of its global distribution, toxicity, and ability to bioaccumulate and biomagnify in food webs; however, little is known about bioaccumulation and toxicity of Hg in turtles. Total Hg (THg) concentrations in blood were determined for 552 turtles representing four different species (Chelydra serpentina, Sternotherus odoratus, Chrysemys picta, and Pseudemys rubriventris) from a Hg‐contaminated site on the South River (VA, USA) and upstream… 
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Food preferences and Hg distribution in Chelonia mydas assessed by stable isotopes.
Mercury concentrations in snapping turtles (Chelydra serpentina) correlate with environmental and landscape characteristics
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Mercury Concentrations in Tissues of Osprey From the Carolinas, USA
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Findings show that the inclusion of mesopelagic prey in seabird diet has an influence on mercury accumulation over and above that from trophic status and emphasises further the value of seabirds feathers as monitors of the ecological hazards of mercury in marine ecosystems.
Mercury Concentrations in Bicknell’s Thrush and Other Insectivorous Passerines in Montane Forests of Northeastern North America
The finding of a correlation between regional litterfall Hg flux patterns and Bicknell’s thrush blood Hg concentrations demonstrates on-site availability of MeHg, and is recommended to assess risk to insectivorous passerines, particularly the Bicarus bicknelli.
Comparison of two freshwater turtle species as monitors of radionuclide and chemical contamination: DNA Damage and residue analysis
Two species of turtles that occupy different ecological niches were compared for their usefulness as monitors of freshwater ecosystems where both low-level radioactive and nonradioactive contaminants
Dietary mercury exposure and bioaccumulation in amphibian larvae inhabiting Carolina bay wetlands.
Turtles as Monitors of Chemical Contaminants in the Environment
Biota have been used increasingly in recent years to evaluate the presence of hazardous chemicals in the environment and to determine the impact of toxicants on ecosystems (e.g., Suter and Loar 1992;
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Using trace-metal-clean sampling and handling techniques along with ultrasensitive analytical procedures, it is possible to measure both total Hg and monomethylmercury (methyl-Hg) in natural
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The common loon (Gavia immer) is a high‐trophic‐level, long‐lived, obligate piscivore at risk from elevated levels of Hg through biomagnification and bioaccumulation. From 1991 to 1996 feather (n =
Effects of mercury on wildlife: A comprehensive review
A critique of the current state of knowledge about effects of Hg on wildlife is presented as an aid to identifying missing information and to planning research needed for conducting a complete assessment of HG risks to wildlife.