Benthic Index of Biological Integrity (B-IBI)
for the Puget Sound Lowlands

Index of Biological Integrity (IBI) - Data Analysis, Synthesis, and Communication

Taxonomic Identification Levels for 10 and 5 Metric B-IBI

A B-IBI can be calculated whether aquatic insects are identified to the family, genus, or lowest practical taxonomic level. Decisions about the appropriate level of macroinvertebrate identification typically depend on the purpose of the study, other potential uses for the data, the expertise of the taxonomist, and the funding available for the study. When samples are identified to genus or the lowest practical taxonomic level, a ten metric scoring system is used. When samples are identified to the family level, a five metric scoring system is used. (See Level of Indentification for more information.)

Sample Data Set

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