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RATL: A Database of Reptile and Amphibian Toxicology Literature

RATL: A Database of Reptile and Amphibian Toxicology Literature

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Table 6 - pH Studies - 28<br />

Species<br />

Code b<br />

Lifestage Study<br />

Endpoint g<br />

pH Level(s)<br />

Temp h Additional<br />

Contam a<br />

Cont.<br />

Conc.<br />

Conc.<br />

e<br />

Units<br />

e<br />

LC50 LC100 e<br />

Effects eg<br />

Reference k<br />

RASE adult POPSUR pH range= 4.53-6.97. Doka et al. 1997<br />

RASE tadpoles POPSUR Results not extracted from paper. Mallory et al. 1996<br />

RASY adult POPSUR 4.1-6.3 Least sensitive to low pH compared to<br />

AMMA <strong>and</strong> BUAM.<br />

Dale et al. 1985<br />

RASY adult POPSUR No evidence that amphibian embryos are<br />

present during snow melt <strong>and</strong> episodic<br />

acidification; population decline not likely<br />

due to acidification.<br />

Vertucci <strong>and</strong> Corn 1996<br />

RASY adult POPSUR 4.44-6.63 Occurred in all ponds; densities increased in<br />

more acidic ponds; egg mass density was<br />

reduced as pH decreased.<br />

Clark 1986 k<br />

RASY adult POPSUR Presence unrelated to pond pH.<br />

Freda <strong>and</strong> Dunson 1986 k<br />

RASY adult POPSUR 4.1 Successfully breeding at pH 4.1. Dale et al. 1985<br />

RASY all POPSUR 4.3-7.3 Al, Zn <strong>Amphibian</strong>s were present in all 118 potential Glooschenko et al. 1992<br />

breeding sites. The species showed a<br />

relationship with conductivity.<br />

RASY egg HATSUC 4.14-5.75 Al 0-200 Results not extracted from paper.<br />

Clark <strong>and</strong> LaZerte 1985 k<br />

RASY egg HATSUC 3.75-7.6 95.3 % hatched at pH 7.2 - 7.6; 41.9 %<br />

hatched at pH 3.75. Time required for<br />

hatching increased significantly as pH<br />

decreased.<br />

Pierce <strong>and</strong> Sik<strong>and</strong> 1985 k<br />

RASY egg HATSUC Egg mass density was negatively correlated<br />

with acidity. Hatching success was inversely<br />

correlated with pH. Occurrence <strong>of</strong> mould on<br />

eggs increased in low pH.<br />

Gascon <strong>and</strong> Planas 1986 k<br />

RASY egg POPSUR Hatching <strong>of</strong> RASY not related to pH.<br />

Freda <strong>and</strong> Dunson 1986 k<br />

RASY egg HATSUC Al Hatching success was negatively correlated<br />

with Al <strong>and</strong> DOC <strong>and</strong> positively correlated<br />

with pH.<br />

Clark <strong>and</strong> Hall 1985<br />

RASY egg HATSUC 3.75-7.6 15 Ovum volume was negatively correlated with Pierce et al. 1987<br />

hatching success at pH 4.0 <strong>and</strong> capsule<br />

thickness was negatively correlated with<br />

hatching success at pH 3.75.<br />

RASY egg POPSUR 4.0-6.0 Populations not declining, close to 100% <strong>of</strong><br />

sites occupied.<br />

Corn et al. 1989<br />

RASY embryo MORT 3.5 Results not extracted from paper.<br />

Tome <strong>and</strong> Pough 1982 k

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