Response of the freshwater bivalve Anodonta grandis to Cd near the Canadian Water Quality Guideline
Conference
·
OSTI ID:37495
- Univ. of Manitoba, Winnipeg (Canada)
The bivalve population inhabiting Lake 382 in the Experimental Lakes Area, northwestern Ontario, receiving experimental additions of cadmium (Cd) near the Canadian Water Quality Guideline (CWQG) was monitored for effects during 1987 to 1992. the purpose of the study was to determine if the CWQG of 0.2 {mu}g Cd/L would adequately protect the biota of the Precambrian Shield Lakes. Mussels accumulated Cd to whole body levels 30X background. Cd levels in the mussels did not plateau by the end of 1992 and continues to increase. Metal-binding proteins metallothioneins (MTs) were induced in all tissues to levels significantly higher than in tissues of mussels from a pristine lake. Although mussel growth rates differed from site to site within Lake 382, there was no change in growth rates with the addition of Cd.
- OSTI ID:
- 37495
- Report Number(s):
- CONF-9410273--
- Country of Publication:
- United States
- Language:
- English
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