RATL: A Database of Reptile and Amphibian Toxicology Literature

Table 6 - pH Studies - 15
Species
Code b
Lifestage Study
Endpoint g
pH Level(s)
Temp h Additional
Contam a
Cont.
Conc.
Conc.
e
Units
e
LC50 LC100 e
Effects eg
Reference k
DEFU adult POPSUR Bimodal distribution with one mode
representing animals found in the forest
interior (low pH) and the second mode
representing animals near streams and wet
areas. Distribution suggested avoidance of
acidic conditions.
Wyman and Jancola 1992
DEFU adult POPSUR 3.9-6.3 DEFU presence affected by soil pH. Wyman 1988
DEFU adult BEHAV 5.5, 7.7 Substrate selection: 72.5 % selected pH 7.7. Mushinsky and Brodie 1975
k
DEFU larvaepremetamor
ph
POPSUR Hatchling Desmognathine larvae and premetamorphic
larvae were found in 16 of 78
low order streams from coal surface mine
impacted areas of the Cumberland Plateau,
Kentucky, Tennessee and Alabama.
Although larvae were found to be surviving
Gore 1983
DEMO adult BEHAV 3.5-7.2
in a wide range of conditions.
100 % survival after 3 weeks; significant
inhibition of feeding at 3.5 - 5.0 pH when
compared to 7.0 pH.
Roudebush 1988
DEQU adult BEHAV 3.5-7.2 100 % survival after 3 weeks at 3.5 - 7.2 pH; Roudebush 1988
at pH 3.5 - 5.0 significant inhibition of
feeding when compared to 7.2 pH.
ELOB adult PHYSIO 7.0 pyruvate 0.03-0.50
Greater LDH activity in snake than turtle Baeyens and Hurley 1986
mM
(PSSC); higher V max and lower Km
suggesting faster conversion of pyruvate to
lactate when the enzyme is saturated with
substance.
EUBI adult PHYSIO 3.0-6.0 Animals exposed to low pH in the laboratory Frisbie and Wyman 1991
exhibited elevated Na efflux rate constants.
EUBI adult POPSUR 3.9-6.3 EUBI presence affected by soil pH. Wyman 1988
EUBI adult POPSUR Found only on soils of higher pH. Field
distribution suggests avoidance of acidic
conditions.
Wyman and Jancola 1992
EULO adult BEHAV 5.5, 7.7 Substrate selection: no preference, 50 % on Mushinsky and Brodie 1975
each of pH 5.5 and 7.7 substrates.
k
EULU adult BEHAV 5.5, 7.7 Substrate selection: 67.1 % selected pH 7.7. Mushinsky and Brodie 1975
k
EUQU adult BEHAV 5.5, 7.7 Substrate selection: 53 % selected pH 7.7. Mushinsky and Brodie 1975
k
HYAN adult POPSUR Presence unrelated to pond pH < 4.62.
Freda and Dunson 1986 k