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Riverfly Data

Riverfly Data

23Total Samples Shown
0Trigger Level Breaches

Scores†
Average Score: 10

Count Distribution‡

Groups

Cased Caddis‡
Total: 45 | Average: 4

Caseless Caddis‡
Total: 31 | Average: 3

Mayfly (Ephemeridae)‡
Total: 372 | Average: 34

Blue-Winged Olive (Ephemerellidae)‡
Total: 134 | Average: 12

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 40 | Average: 4

Olives (Baetidae)‡
Total: 645 | Average: 59

Stoneflies (Plecoptera)‡
Total: 4 | Average: 0

Freshwater Shrimp‡
Total: 1881 | Average: 171

†

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.