Chapter 8 Explore MCAT Metrics

This chapter will explore the MCAT metrics to determine if relationships exist between predictor variables and MCAT metrics.

8.1 MCAT Metric Site Threshold

The purpose of this section is to display the range of calculated values for each of the MCAT metrics for each of the sites in the Steamboat Island study area. The MCAT report is clear about metric thresholds to use for evaluating quality mussel beds. However, this study is using the individual site unit of analysis. Therefore, decisions must be made on what is the appropriate metric threshold to use for the site level of analysis. The descriptive statistics in this section will help to inform that decision.

8.1.1 Percent Listed

8.1.2 Percent Tolerant

8.1.3 Percent Tribe Lampsilini

8.1.4 Percent Juveniles

8.1.5 Percent over 15 years

8.1.6 Abundance

8.1.7 Species Evenness

8.1.8 Tribe Evenness

8.1.9 ES_100

8.2 MCAT Site Scores

The purpose of this step is to explore relationships between the MCAT Site Score and the hydraulic environmental predictors.

MCAT Site Scores with Velocity.

Figure 8.1: MCAT Site Scores with Velocity.

8.3 MCAT Site Score by Velocity

8.4 MCAT Site Score by Shear Stress

8.5 MCAT Site Score by Reynolds Number

8.6 MCAT Site Score by Froude Number

8.7 MCAT Site Score by Depth

8.8 MCAT Site Score by Slope