We followed recommendations in the Rapid Bioassessment 1998 report when calculating average pool complexity and average coho per sq m. To prevent underestimation of true rearing density (Bio-Surveys, 1998 #7), we utilized data only from pools falling within the observed distribution of coho for each surveyed stream. Specifically, we excluded from the averages those pools located upstream of the last pool in which coho were observed, and, for some mainstems, downstream of the first pool in which coho were observed. The pools within the observed coho distribution were saved as separate shapefiles (rba98_distrib_by6th.zip and rba99_distrib_by6th.zip).

Please address questions or comments to:

Dr. Ralph Garono
Principal Investigator
Earth Design Consultants, Inc.
rgarono@earthdesign.com

Laura Brophy
Principal Investigator
Green Point Consulting
brophyl@peak.org | homepage