Parameter;Estimate;SE;t-value;"P > t"
"Equation 3 (R2 = 0.45)"
b0;4.317;0.37;-7.9;<0.01
b1;-0.372;0.088;-4.2;<0.01
"Equation 4 (R2 = 0.80)"
b0;4.411;0.159;11.9;<0.01
b1;-0.454;0.064;-7.1;<0.01
"b2: mainstem";0;;;
"b2: lakes";0.067;0.048;1.4;0.18
"b3: male";0;;;
"b3: female";-0.055;0.061;-0.9;0.38
"b4: mainstem, male";0;;;
"b4: mainstem, female";0;;;
"b4: lakes, male";0;;;
"b4: lakes, female";0.256;0.080;3.2;<0.01