Acute effects of aluminum and acidity upon nine stream insects. Technical completion report
The effects of increased aluminum concentrations and decreased pH upon the larval stages of five caddisflies, two mayflies, a stonefly, and a beetle were tested. These insects were removed from two riffle habitats in southern New Hampshire, placed into artificial streams and subjected to additions of aluminum salts and sulfuric acid for a three-day period. Acute mortality and the drifting behavior over the three-day period were then analyzed using multiple linear regression. Aluminum additions caused increased mortality in the stonefly Nemoura nigratta and the caddisfly Macronema spp.; aluminum additions also increased the drift of the caddisfly Potamyia flava, but the response was small and likely due to the increased salinities in aluminum treatments.
- Research Organization:
- New Hampshire Univ., Durham (USA). Dept. of Zoology; New Hampshire Univ., Durham (USA). Water Resources Research Center
- OSTI ID:
- 5099255
- Report Number(s):
- PB-85-214948/XAB
- Country of Publication:
- United States
- Language:
- English
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