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Riverfly Data

Riverfly Data

3Total Samples Shown
0Trigger Level Breaches

Scores With Trigger Level†
Average Score: 15

Count Distribution‡

Groups

Cased Caddis‡
Total: 68 | Average: 23

Caseless Caddis‡
Total: 62 | Average: 21

Mayfly (Ephemeridae)‡
Total: 18 | Average: 6

Blue-Winged Olive (Ephemerellidae)‡
Total: 146 | Average: 49

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 679 | Average: 226

Olives (Baetidae)‡
Total: 1403 | Average: 468

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

Freshwater Shrimp‡
Total: 1160 | Average: 387

†

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.