Optimizing the use of freshwater juvenile mussels to standardize toxicity testing
- Clemson Univ., Pendleton, SC (United States)
Juvenile Utterbackia imbecillis Say (Bivalvia:Unionidae) were tested for toxicity to copper and cadmium during their early life stage. Juvenile U. imbecillis were found to be relatively sensitive to aqueous copper and cadmium toxicity, with definitive 48h LC50 values ranging from 48 to 251 ug Cd/L, and from 33 to 130 ug Cu/L. Data from cadmium tests indicated that juveniles aged 1--10 days from transformation are not significantly different with their responses towards 48-hour acute tests. In comparison, different aged U. imbecillis and C. dubia include the use of four chemicals; anthracene, cadmium chloride, sodium dodecylsulfate, and ammonium chloride. Another juvenile freshwater mussel (Unionidae: Villosa iris) will also be compared to U. imbecillis and C. dubia in 48-hour acute and 8-day static renewal tests for these four chemicals. Preliminary results suggest that freshwater juvenile mussels (U. imbecillis) are as sensitive to some chemicals as C. dubia.
- OSTI ID:
- 455310
- Report Number(s):
- CONF-961149--
- Country of Publication:
- United States
- Language:
- English
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