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Trophic transfer of methyl mercury in the northern Florida Everglades

January 1, 1998

There are spatial differences in methyl mercury (MeHg) concentrations in biota in Water Conservation Areas 2 and 3 in the Everglades, with higher concentrations generally found in the southern areas. Fish and hemipterans had the most MeHg on a wet weight basis, with levels exceeding 30 ng g-1. The magnitude of MeHg accumulation in biota varies seasonally and does not always appear to be associated with changes in water column concentration. This is exemplified by periphyton, the base of the foodweb in the Everglades, at a high nutrient sampling site. Although limited in scope, MeHg concentrations presented for biota provide insight into beginning to understand the dynamic nature of Hg transfer in the Everglades foodweb on a spatial and temporal basis.

Citation Information

Publication Year 1998
Title Trophic transfer of methyl mercury in the northern Florida Everglades
DOI 10.1023/A:1005918101773
Authors L.B. Cleckner, P.J. Garrison, J.P. Hurley, M.L. Olson, D. P. Krabbenhoft
Publication Type Article
Publication Subtype Journal Article
Series Title Biogeochemistry
Series Number
Index ID 70020657
Record Source USGS Publications Warehouse
USGS Organization Toxic Substances Hydrology Program