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Riverfly Data

Riverfly Data

106Total Samples Shown
0Trigger Level Breaches

Scores†
Average Score: 12

Count Distribution‡

Groups

Cased Caddis‡
Total: 87 | Average: 7

Caseless Caddis‡
Total: 45 | Average: 4

Mayfly (Ephemeridae)‡
Total: 114 | Average: 10

Blue-Winged Olive (Ephemerellidae)‡
Total: 44 | Average: 4

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 207 | Average: 17

Olives (Baetidae)‡
Total: 130 | Average: 11

Stoneflies (Plecoptera)‡
Total: 55 | Average: 5

Freshwater Shrimp‡
Total: 1215 | Average: 101

†

Scores in this chart are calculated from the average monthly counts for each species group. The chart includes data derived from Urban and Extended Riverfly samples. Select a site using the map or menu bar to plot its trigger level alongside the scores.

‡

Values in this chart represent average monthly counts for each species group. The chart includes data derived from Urban and Extended Riverfly samples.