highly significantP < 0.001
Highly significant ( P < 0.001) positive correlations were detected between LCBD and a complement of physicochemical variables, including potassium ( r = 0.53), TN ( r = 0.50), DIC ( r = 0.45), TP ( r = 0.44), dissolved organic carbon (DOC; r = 0.42), magnesium ( r = 0.40), sodium ( r = 0.38), sulfate ( r = 0.37), chlorophyll a ( r = 0.33), lake colour ( r = 0.22), and pH ( r = 0.22).