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Riverfly Data

Riverfly Data

24Total Samples Shown
0Trigger Level Breaches

Scores†
Average Score: 10

Count Distribution‡

Groups

Cased Caddis‡
Total: 64 | Average: 7

Caseless Caddis‡
Total: 20 | Average: 2

Mayfly (Ephemeridae)‡
Total: 12 | Average: 1

Blue-Winged Olive (Ephemerellidae)‡
Total: 122 | Average: 14

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 106 | Average: 12

Olives (Baetidae)‡
Total: 164 | Average: 18

Stoneflies (Plecoptera)‡
Total: 115 | Average: 13

Freshwater Shrimp‡
Total: 27 | Average: 3

†

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.