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Comparative evaluation of the sensitivity of Hyallela azteca and Chironomus tentans for use in freshwater toxicity tests

Conference ·
OSTI ID:31784
; ;  [1]
  1. Parametrix, Inc., Kirkland, WA (United States)

Laboratory studies were conducted to assess the bioavailability of contaminants in a creek located in western Washington. Bioassays were conducted on eighteen sediment samples using the amphipod Hyallela azteca and the midge Chironomus tentans. The Hyallela test was a standard 10-day acute test with survival as the test endpoint. The Chironomus test was a 30-day chronic test evaluating both survival and adult emergence. Results from these bioassays showed Chironomus emergence to be the most sensitive endpoint, followed by Chironomus survival and Hyallela survival, respectively.

OSTI ID:
31784
Report Number(s):
CONF-9410273--
Country of Publication:
United States
Language:
English

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