Table 5 p-values from a t-test associated with changes in boulder concertation for a given flow rate.

From: An experimental study: effects of boulder placement on hydraulic metrics of instream habitat complexity

Scenario code

p-value

M1 (J/kg m)

M2 (1/m)

M4 (1/s)

S1-L to S2-L

0.001*

0.004*

 < 0.001*

S2-L to S3-L

0.105

0.265

0.048*

S3-L to S4-L

0.002*

0.016*

0.174

S1-H to S2-H

0.135

 < 0.001*

 < 0.001*

S2-H to S3-H

0.001*

0.001*

 < 0.001*

S3-H to S4-H

0.065

0.009*

0.015*

  1. M1 is the kinetic energy gradient metric, M2 is the normalized kinetic energy gradient metric, and M4 is the modified recirculation metric. (*) indicates the change is statistically significant assuming a significance level of 0.05.
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