Reports

Acid precipitation and embryonic mortality of spotted salamanders, Ambystoma maculatum

Science  02 Apr 1976:
Vol. 192, Issue 4234, pp. 68-70
DOI: 10.1126/science.3852

Abstract

Spotted salamanders breed in temporary pools formed in early spring by melted snow and rain. Many of these pools reflect the low pH of precipitation in the northeastern United States. Egg mortality is low (less than 1 percent) in pools near neutrality, but high (greater than 60 percent) in pools more acid than pH 6. Developmental anomalies and the embryonic stage at which death occurs are the same in field situations as at corresponding pH's in laboratory experiments.

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