Table 4. Stream and riparian habitat assessment: Shields River, August 2000. 



'Optimal >8I%, Sub-Optimal 75-56%, Marginal 49-29%, Poor <23%. (Plafkin et al. 1989.) 



Bioassessment 



Aquatic invertebrate taxa lists, metric results and other information for each 

 sample are given in the Appendix. Figure 2 compares the total bioassessment scores 

 calculated for invertebrate communities collected at each of the two sites. Breakdown of 

 scores for each metric calculated from Shields River invertebrate samples is presented in 

 Table 5. 



Figure 2. Total bioassessment scores, expressed as percent of maximum, for two sites on Shields River, 

 August 2000. 



McCloud station 



Johnstone station 



