|SREL Reprint #0604|
Concentrations of Cd, Cu, Mn, Pb, and Zn in Fishes in a Highly Organic Software Pond
G. Wiener and John P. Giesy, Jr.
Concentrations of Cd, Pb, and three essential metals
(Cu, Mn, and Zn) in stocked bluegill (Lepomis macrochirus) and
eight resident species of fish were studied in an acidic, higly organic pond on
the southeastern U.S. coastal plain. Concentrations
of Cu, Mn, and Zn in stocked and resident fish were apparently homeostatically
controlled in liver tissue, axial musculature, and whole body.
Concentrations of all metals studied in axial muscle tissue and whole
body of stocked bluegill remained relatively constant after 200 d of residence
in the pond. Analysis of
concentrations factors from pond water to whole stocked bluegill indicated that
Pb in this system was less available to fish than in hardwater lakes.
In contrast, Cd in the pond was as available to fish as in harder waters.
Differences in relative availabilities of Cd and Pb were explained by the
tendency of Pb to form complexes with naturally occurring organics.
The need for metal-specific analysis of biological availability of metals
in highly organic softwater systems is stressed.
trace metal, availability, fish, soft water, concentration factor,
SREL Reprint #0604
Wiener, J.G. and J.P. Giesy Jr. 1979. Concentrations of
Cd, Cu, Mn, Pb, and Zn in fishes in a highly organic softwater
pond. Journal of the Fisheries Research Board of Canada