Parameter;Estimate;SE;t-value;"P > t"
"Equation 1 (R2 = 0.95)"
b0;-9.88;0.120;-82.1;<0.01
b1;3.665;0.041;88.6;<0.01
"Equation 2 (R2 = 0.96)"
b0;-9.596;0.159;-69.3;<0.01
b1;3.572;0.047;75.8;<0.01
"b2: mainstem";-0.012;0.003;-4.3;<0.01
"b2: lakes";0;;;
"b3: male";-0.010;0.002;-4.6;<0.01
"b3: female";0;;;
"b4: mainstem, male";0.013;0.004;3.7;<0.01
"b4: mainstem, female";0;;;
"b4: lakes, male";0;;;
"b4: lakes, female";0;;;