Lake Acidification as a Limiting Factor in the Distribution of the Freshwater AmphipodHyalella azteca
Citations Over TimeTop 10% of 1986 papers
Abstract
The distribution of the freshwater amphipod Hyalella azteca in 79 Ontario lakes suggests that its absence may be a good indicator of lake acidification. Hyalella azteca was present in 69 of 71 nonacidified lakes, and absent in 8 of 8 lakes which either are now ar recently were considered acidified. Bioassay data indicate a 96-h LC 50 of pH 4.4 and a 10-d threshold LC 50 of pH 4.5 for H. azteca in a natural surface water. Hyalella azteca is extremely rare in Plastic Lake, which undergoes severe short-term acidification in spring, and recruitment is delayed 2 wk in Heeney Lake which undergoes similar short-term acidification, in Dickie, Harp, Red Chalk, and Blue Chalk lakes, where springtime pH depressions below pH 4.7 were not recorded, H. azteca is abundant.
Related Papers
- → The Utilization of Benthic Microflora by Hyalella azteca (Amphipoda)(1970)305 cited
- → Recovery of known-age Hyalella azteca (amphipoda) from sediment toxicity tests(1995)21 cited
- → A new species of the Hyalella ‘azteca’ complex (Crustacea: Amphipoda: Hyalellidae) from Florida(2019)9 cited
- → First record of the freshwater amphipod Hyalella azteca (Amphipoda: Senticaudata) in Cuautla, Morelos, Mexico(2020)1 cited
- → RECOVERY OF KNOWN-AGE HYALELLA AZTECA (AMPHIPODA) FROM SEDIMENT TOXICITY TESTS(1995)4 cited