Hannaea 



1032 12th Avenue Helena, MT 59601 (406)443-2196 

 hannaea@montana.com 



Diatom Report 



Nitzschia archibaldii 

 Nitzschia capitellata 

 Nitzschia dissipata 

 Nitzschia filiformis 

 Nitzschia graciliformis 

 Nitzschia inconspicua 

 Nitzschia liebetruthii 

 Nitzschia lorenziana 

 Nitzschia microcephala 

 Nitzschia palea 

 Nitzschia perminuta 

 Nitzschia reversa 

 Nitzschia sigma 

 Nitzschia sigmoidea 

 Nitzschia siliqua 

 Pleurosigma delicatulum 

 Rhopalodia gibba 

 Rhopalodia operculata 

 Simonsenia delognei 

 Staurosira construens 

 Surirella brebissonii 

 Synedra parasitica 

 Tryblionella apiculata 

 Tryblionella debilis 



1.35 

 0.25 

 3.2 

 0.62 

 0.99 

 6.53 

 1.48 

 0.37 

 0.74 

 1.23 

 0.25 

 12.81 

 0.12 

 0.37 

 0.25 

 0.74 

 0.49 

 0.25 

 0.12 

 0.99 

 0.12 

 0.25 

 0.25 

 0.25 



Diatom Metrics 



Metric Category 



Valves Counted 



Cells Counted 



Total Number of Species 



Total Number of Species Counted 



Percent Dominant Species 



Shannon's Diversity Index 



Pollution Index 



Pollution Tolerance (% by Category) Most Tolerant 



Pollution Tolerance (% by Category) Tolerant 



Pollution Tolerance (% by Category) Sensitive 



Value 



812 



406 



53 



53 



22.41 



4.29 



1.93 



16.13 



75.12 



8.74 



Hannaea - Diatom Report 



Page 2 



2/26/03 



