Cope, W. G., and Rada, R. G., 1992, Accumulation of mercury by aufwuchs in
Wisconsin seepage lakes: Implications for monitoring: Archives of Environmental
Contamination and Toxicology, v. 23, no. 2, p. 172-178.

Abstract

We examined temporal variation in the total Hg content of aufwuchs (attached algae)
collected from  artificial substrates in 11 seepage lakes in north-central Wisconsin and
its relation to the Hg content of resident  yellow perch Perca flavescens  from the lakes.
Dry weight concentrations of Hg in aufwuchs varied temporally,  as follows:
summer/fall 1985 > summer 1985 > spring/summer 1986. Areal concentrations of Hg
during the 1985  sampling periods were greater than concentrations during the
spring/summer 1986 period, but did not differ  from each other. The analyses of
aufwuchs do not indicate potential accumulation of Hg in fish in these lakes.

Keywords

bioaccumulation, mercury, pollution-effects, epibionts, seepages, food-webs,
Perca-flavescens, USA,- Wisconsin, algae, heavy-metals