Comparative response of Ceriodaphnia dubia and juvenile Anodonta imbecillis to pulp and paper mill effluents discharged to the Tennessee River and its tributaries
McKinney, A.D. | Wade, D.C.
The responses of Ceriodaphnia dubia (daphnid) in a 7-d chronic daily-renewal bioassay and 6-d-old juvenile Anodonta imbecillis (paper pondshell mussel) in a 9-d acute daily-renewal bioassay are compared. Values for relative sensitivity to selected complex, industrial, whole-effluent samples were generated following determination of either observed or calculated no-observable-effect concentrations (NOEC). Results from tests using effluents from six pulp and paper products facilities in the Tennessee River Valley indicate that A. imbecillis juveniles are substantially more sensitive than C. dubia to selected effluents. It is suggested that a juvenile mussel bioassay should be used to assess the toxicity of effluent releases to waters with freshwater mussel resources.
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