Development and evaluation of methods to assess sublethal impacts of contaminants on freshwater mussels
Conference
·
OSTI ID:372512
- National Biological Service, Gainesville, FL (United States)
While a number of test methods have been used to evaluate the acute lethality of contaminants to freshwater mussels, far fewer techniques are available to measure chronic sublethal impacts. The authors selected respiration rate, ammonia excretion, glycogen stores and cholinesterase activity for evaluation as sublethal indicators of toxicity. Adults of three species, Utterbackia imbeciles, Elliptio icterina and Lampsilis teres, were sampled monthly to determine a baseline response for each of these measures as mussels experienced the changing seasons and reproductive cycle. Adaptations of assays developed for other mussel or animal species were made to maximize the response of some indicators.Differences based on mussel species and sex, and assayed tissue were measured. The potential use of these assays as indicators of contaminant stress was determined, as were personnel and material costs.
- OSTI ID:
- 372512
- Report Number(s):
- CONF-9511137--; ISBN 1-880611-03-1
- Country of Publication:
- United States
- Language:
- English
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