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Riverfly Data

Riverfly Data

21Total Samples Shown
0Trigger Level Breaches

Scores†
Average Score: 10

Count Distribution‡

Groups

Cased Caddis‡
Total: 88 | Average: 10

Caseless Caddis‡
Total: 18 | Average: 2

Mayfly (Ephemeridae)‡
Total: 29 | Average: 3

Blue-Winged Olive (Ephemerellidae)‡
Total: 119 | Average: 13

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 95 | Average: 11

Olives (Baetidae)‡
Total: 141 | Average: 16

Stoneflies (Plecoptera)‡
Total: 91 | Average: 10

Freshwater Shrimp‡
Total: 8 | Average: 1

†

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.