Team+Crayfish+Procedure+and+Pictures

Procedure - Tionna McMahan and Shaylyn Fetterman. Pictures - Alicia Switlick

Materials used: and

1. took the air temperature

2. took the water temperature

3. measure stream with stake at wetted edges.

4. make sure rope is tight and stakes are down in the ground.

5. divide the length of the stream by five to get four separate points.

6. put a clothes pin at each of these four points on the rope.

7. Measure the depth of the water from each pin.



8. Added up the depths to get the average depth of the stream.

9. Put another rope down the stream.

10. Timed a tennis ball down the stream four times. 11. Added the times together to get the average velocity.

12. to get stream volume take width times depth times velocity times .8

13. when you get velocity, multiply by 1000 to get the amount of liters there is water in the stream.