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Riverfly Data

Riverfly Data

4Total Samples Shown
0Trigger Level Breaches

Scores With Trigger Level†
Average Score: 14

Count Distribution‡

Groups

Cased Caddis‡
Total: 20 | Average: 5

Caseless Caddis‡
Total: 102 | Average: 26

Mayfly (Ephemeridae)‡
Total: 9 | Average: 2

Blue-Winged Olive (Ephemerellidae)‡
Total: 1002 | Average: 251

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 298 | Average: 75

Olives (Baetidae)‡
Total: 3374 | Average: 844

Stoneflies (Plecoptera)‡
Total: 2 | Average: 1

Freshwater Shrimp‡
Total: 1355 | Average: 339

†

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.