Genetic variability, differential response, and differential sensitivity between populations of the amphipod, Ampelisca abdita
Conference
·
OSTI ID:218428
- Aqua Survey, Inc., Flemington, NJ (United States)
Exposing marine invertebrates to sediments in solid phase tests has become a popular method for determining the toxicity of sediments being dredged from coastal waterways. The use of the marine amphipod, Ampelisca abdita for testing dredge sediments will be discussed specifically. A. abdita has proven useful for 10-day sediment toxicity tests, in which mortality is the endpoint, due to its relatively high sensitivity. However, the results from testing these animals have been variable. After comparing several populations of organisms exposed to the same sediment, it was found that there are differences in the response of organisms between populations to sediment exposure. SRT data also demonstrated differences in the sensitivity of A. abdita collected from different populations. Genetic differences between populations of organisms may be responsible for the differential response and sensitivity observed.
- OSTI ID:
- 218428
- Report Number(s):
- CONF-9511137--; ISBN 1-880611-03-1
- Country of Publication:
- United States
- Language:
- English
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