Combined effects of cadmium and zinc on a Lake Michigan zooplankton community

Journal Article · Sun Nov 01 04:00:00 EST 1981 · J. Great Lakes Res.; (United States)

DOI:https://doi.org/10.1016/S0380-1330(81)72048-3· OSTI ID:5633136

Marshall, J S; Mellinger, D L; Parker, J I

Two 3-week experiments with small enclosures were conducted in situ in northeastern Green Bay, Lake Michigan, to compare the effects of separate and combined additions of cadmium and zinc on the zooplankton community. The radioisotopes /sup 109/Cd and /sup 65/Zn were used as tracers to determine the sorption of cadmium and zinc by different particle size fractions. Separate additions of 2 ..mu..g Cd/L or 100 ..mu..g Zn/L, as well as combined additions of 2 ..mu..g Cd/L + 100 ..mu.. Zn/L or 1 ..mu..g Cd/L + 50 ..mu..g Zn/L, caused significant reductions of total crustacean density, species diversity, two community similarity indices, and final dissolved oxygen concentration. The effects of separate additions of 100 ..mu..g Zn/L were generally more pronounced than those of 2 ..mu..g Cd/L, but were similar to those of approx. =5 ..mu..g Cd/L. The effects of combined additions of 2 ..mu..g Cd/L + 100 ..mu..g Zn/L were not significantly different from those of 100 ..mu..g Zn/L alone and were primarily due to zinc because it reduced cadmium uptake by the plankton (10-85 ..mu..m and >85 ..mu.. fractions). The effects of combined additions of 1 ..mu..g Cd/L + 50 ..mu..g Zn/L probably were also mainly due to zinc. The overall results of this study suggest that less than a ten-fold increase in the concentration of zinc in Lake Michigan.

• Research Organization: Argonne National Lab., Illinois
• OSTI ID: 5633136
• Journal Information: J. Great Lakes Res.; (United States), Journal Name: J. Great Lakes Res.; (United States) Vol. 7:3; ISSN JGLRD
• Country of Publication: United States
• Language: English

Related Subjects

520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ANIMALS
AQUATIC ECOSYSTEMS
AQUATIC ORGANISMS
ARTHROPODS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BIOLOGICAL EFFECTS
CADMIUM
CRUSTACEANS
DAYS LIVING RADIOISOTOPES
ECOSYSTEMS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EVEN-ODD NUCLEI
GREAT LAKES
INTERMEDIATE MASS NUCLEI
INVERTEBRATES
ISOTOPE APPLICATIONS
ISOTOPES
LAKE MICHIGAN
LAKES
METALS
NONMETALS
NUCLEI
OXYGEN
PLANKTON
RADIOISOTOPES
SORPTION
SURFACE WATERS
TOXICITY
TRACER TECHNIQUES
ZINC
ZINC 65
ZINC ISOTOPES
ZOOPLANKTON