49 



Table 3. Pearson product-moment correlation coefficients between 

 water quality and macrophyte variables for survey 

 lakes. * = p < 0.05. 







correlation coefficient 









prob. > 1 r 1 under Ho: rho 



= 







sampl 



e size 







log 10 



TSI(AVG) 



pH 



Specific 





total P 







conductance 



Percent 



*-0.558 



*-0.518 



-0.185 



-0.298 



area 



0.007 



0.014 



0.410 



0.177 



coverage 



22 



22 



22 



22 



Percent 



-0.169 



-0.131 



0.136 



-0.212 



volume 



0.380 



0.497 



0.482 



0.269 



infestation 



29 



29 



29 



29 



Floating- 



0.124 



0.134 



0.072 



-0.194 



leaved 



0.582 



0.552 



0.750 



0.388 



biomass 



22 



22 



22 



22 



Submerged 



-0.252 



-0.219 



0.033 



-0.136 



biomass 



0.258 



0.327 



0.883 



0.546 





22 



22 



22 



22 



Emergent 



-0.124 



-0.121 



-0.253 



-0.251 



biomass 



0.582 



0.592 



0.256 



0.260 





22 



22 



22 







*0.679 



*0.713 





*0.755 



pH 



<0.001 



<0.001 





<0.001 





29 



29 





2 9 



Specific 



*0.493 



*0.569 







conductance 



0.007 

 29 



0.001 

 29 











