Table G-6. Regression equation parameters of morphologica] measurements from mussels collected at Sylvan 

 Slough site (RM 485.8), 1994-95. The relationship between morphological measurements were' 

 best described by a power regression equation (y = ax'^b). Equation parameters are as follows : y 

 = dependent variable; x = independent variable, a = y intercept; b = regression coefficient 

 (slope); r^ = coefficient of determination; and n = number of individuals plotted. 



Example: Calculate the shell width and height oCanAmblemaplicata (Three ridge) with a shell length of 92.56 mm. (>' 

 width =1.0138 X 92.56^.8571 =49.13 mm - 25.4 mm/inch = 1.93 inch 

 height = 1.0400 ^ 92.56'X).9328 = 71.01 mm - 25.4 mm/inch = 2.80 inch 



ax-^b) 



Page G-7 



Whitney et al., Unionid Suney - Reach 1 5 UMR 



