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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 - 4<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 />

AMJE larvae DEVOBS 4.5 <strong>and</strong> 5.5 ambient Al, Cu, Pb,<br />

mg/L The all-metals mixture treatment induced Horne <strong>and</strong> Dunson 1995<br />

outdoor Fe, Zn<br />

significantly higher mortality for both<br />

species during acute <strong>and</strong> chronic exposure.<br />

Acute exposure AMJE survival was<br />

significantly higher in the high water<br />

hardness treatments (63 vs 25%).<br />

AMJE larvae DEVOBS 4.5 <strong>and</strong> 5.5 outdoor Al 0.525 mg/L The presence <strong>of</strong> Al significantly reduced Horne <strong>and</strong> Dunson 1995<br />

ambient<br />

survival during both acute <strong>and</strong> chronic<br />

exposure. There were no ameliorative<br />

effects <strong>of</strong> pH or hardness on acute exposure<br />

AMJE survival.<br />

AMJE larvae DEVOBS 4.5 <strong>and</strong> 5.5 ambient Fe 0.02 mg/L There were no significant negative effects <strong>of</strong> Horne <strong>and</strong> Dunson 1995<br />

outdoor<br />

iron, lead <strong>and</strong> zinc on RASY or AMJE during<br />

acute or chronic exposure. Likewise, there<br />

were no significant effects <strong>of</strong> iron, lead or<br />

zinc on RASY or AMJE wet mass.<br />

AMJE larvae DEVOBS 4.5 <strong>and</strong> 5.5 ambient Pb 0.01 mg/L There were no significant negative effects <strong>of</strong> Horne <strong>and</strong> Dunson 1995<br />

outdoor<br />

iron, lead <strong>and</strong> zinc on RASY or AMJE during<br />

acute or chronic exposure. Likewise, there<br />

were no significant effects <strong>of</strong> iron, lead or<br />

zinc on RASY or AMJE wet mass.<br />

AMJE larvae DEVOBS 4.5 <strong>and</strong> 5.5 ambient Zn 0.115 mg/L There were no significant negative effects <strong>of</strong> Horne <strong>and</strong> Dunson 1995<br />

outdoor<br />

iron, lead <strong>and</strong> zinc on RASY or AMJE during<br />

acute or chronic exposure. Likewise, there<br />

were no significant effects <strong>of</strong> iron, lead or<br />

zinc on RASY or AMJE wet mass.<br />

AMJE larvae MORT 4.2 <strong>and</strong> >4.7 Al 10-30 µM Total dissolved Al was higher in acidified Rowe et al. 1992<br />

(pH=<br />

enclosure compared to controls (pH >4.7).<br />

4.2), 5-15<br />

Greater mortality occurred at pH 4.2 than at<br />

(pH>4.7)<br />

pH >4.7. Significant effect <strong>of</strong> pond on<br />

survival also occurred. Mean wet masses <strong>of</strong><br />

survivors was not influenced by pH.<br />

AMJE larvae - DEVOBS 4.2 <strong>and</strong> >6.0 Al 16 (pH= µM 100% mortality at pH 4.2. 8% survival at Rowe et al. 1992<br />

metamorph<br />

4.2), 0.1<br />

(pH>6.0)<br />

pH >6.0.<br />

AMJE terrestrial PHYSIO 3.5, 4.0, 4.5,<br />

After 7 d there was no significant changes in Horne <strong>and</strong> Dunson 1994<br />

metamorph<br />

5.0<br />

body water or NA, Ca, Mg, K levels.<br />

Exposure to the most acidic conditions for<br />

14 d induced significant water loss <strong>and</strong> whole<br />

body Na loss. Body water loss was 20% at pH<br />

3.5, compared to only 3% at pH 5.0.

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