7759

• UCREFRP Catalog Number: 7759
• Author: Beyers, D. W. and M. S. Farmer.
• Title: Effects of Copper and Zinc on Olfaction of Colorado Squawfish as Estimated by Behavioral Assay.
• USFW Year: 1994.
• USFW - Doc Type: \
• Copyright Material: NO

Table 2. Parameter estimates and their p-values (in parentheses)
for logistic regression modelsa of olfactory inhibition as a
function of toxicant concentration, and approximate p-values for
goodness of fit of each model.
Exposure Intercept
Goodness Of
Slope Fit
24-h exposure
copper -4.4479 (0.0001)
zinc -13.6353 (0.04)
2.8553 (0.0001) 0.1
4.2482 (0.05) 0.2
96-h exposure
copper -14.2063 (0.02)
zinc -2.6829 (0.2)
8.0222 (0.02) 0.7
0.0703 (0.9) 0.1
aIntercept and slope estimates for the logistic regression
equation: logit = intercept + slope (logloconcentration). To
calculate probability of olfactory inhibition (p inhibition) for
24- or 96-h exposure to any copper or zinc concentration use the
equation: p inhibition = el°gi` / (1 + el°gi`)
33