PLUNGING FLOW 



STREAMING FLOW 



A. Direct-inline passage through the pool. 



B. Circuitous passage involving continuous movement. 



Resting' _ 



position l!>=^^^ -•" 



C. Circuitous passage involving a rest period. 

 Figure 8. — Types of fish behavior patterns observed during plunging and streaming flow. 



TABLE 3. — Types of behavior and mean pool times during plunging 

 and streaming flows 



j/ A — Direct in-line passage through pool; B — circuitous passage, 

 continuous movement; and C — circuitous passage rest period. See 

 figure 8. 



10 



