Table 4. Relative abundance of cells and ordinal rank by biovolume of diatoms (Division Bacillariophyta) 

 and genera of non-diatom algae in periptiyton samples collected from the Big Hole River TMDL 

 Planning Area in 2003: d = dominant, a = abundant, f = frequent, c = common; o = occasional; 

 r = rare, (continued) 



