+ 



13 



12 



11 



^ 10 



o 



c 



-S 9 



c 



2.5 



1/5 



E 

 o 



-•— Control 

 O Decreased 

 -▼— Increased 



-•— Control 

 O Decreased 

 -T— Increased 



Figure 7: Flow'date interaction for average a) abundance and b) biomass (b) in undisturbed 

 sediment. Minor ticks placed every Monday. Tukey minimum significant difference is 0.20 for abundance 

 and 0.12 for biomass. 



F-20 V Effects ofTemporality, Disturbance Frequency and Water Flow 

 on an Upper Hstuartne Macroin/auna Community 



