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Riverfly Data

Riverfly Data

26Total Samples Shown
0Trigger Level Breaches

Scores†
Average Score: 10

Count Distribution‡

Groups

Cased Caddis‡
Total: 106 | Average: 11

Caseless Caddis‡
Total: 21 | Average: 2

Mayfly (Ephemeridae)‡
Total: 17 | Average: 2

Blue-Winged Olive (Ephemerellidae)‡
Total: 121 | Average: 12

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 104 | Average: 10

Olives (Baetidae)‡
Total: 165 | Average: 16

Stoneflies (Plecoptera)‡
Total: 115 | Average: 12

Freshwater Shrimp‡
Total: 26 | 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.