Invertebrate Program Statistics and Summary
Since the bioassessment program began in 1994, benthic macroinvertebrate surveys have been a critical component of the assessment process.
1,301,511
Total Invertebrates Collected
957
Unique Taxa
2,846
Total Surveys
2,658
BMIBI Assessments
Top 5 Most Collected Taxa
Taxa | # Collected |
---|---|
Chironomidae | 252,351 |
Cheumatopsyche | 124,110 |
Baetis intercalaris | 39,872 |
Tricorythodes | 39,703 |
Hydropsychidae | 37,395 |
Top 5 Most Common Taxa
Taxa | % of all sites |
---|---|
Chironomidae | 70.11% |
Cheumatopsyche | 59.92% |
Hydropsychidae | 54.69% |
Oligochaeta | 51.97% |
Physa | 50.34% |
Valid Assessments
Assessment Type | Count |
---|---|
Warm Water | 2267 |
Cold Water | 242 |
Rapid Assessment | 188 |