Influence of pH and aluminum on developing brook trout in a low calcium water.

@article{Hunn1987InfluenceOP,
  title={Influence of pH and aluminum on developing brook trout in a low calcium water.},
  author={Joseph B. Hunn and Linda S. Cleveland and Edward E. Little},
  journal={Environmental pollution},
  year={1987},
  volume={43 1},
  pages={
          63-73
        }
}
Eyed embryos of brook trout (Salvelinus fontinalis) were exposed to nominal pHs of 4.5, 5.5 and 7.5 with and without aluminum (300 microg liter(-1)) in extremely soft water (hardness <9mg liter (-1)) at 12 degrees C. Embryo mortality exceeded 80% at pH 4.5, averaged 15 to 18% in the pH 5.5 treatments and was less than 2% in the pH 7.5 treatments. Aluminum significantly reduced embryo mortality (85.3% vs 99.5%) at pH 4.5 but did not affect mortality at pH 5.5 or pH 7.5. Percent hatch and poor… CONTINUE READING
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