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Riverfly Data

Riverfly Data

1Total Samples Shown
0Trigger Level Breaches

Scores With Trigger Level†
Average Score: 19

Count Distribution‡

Groups

Cased Caddis‡
Total: 161 | Average: 161

Caseless Caddis‡
Total: 18 | Average: 18

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

Blue-Winged Olive (Ephemerellidae)‡
Total: 364 | Average: 364

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 105 | Average: 105

Olives (Baetidae)‡
Total: 124 | Average: 124

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

Freshwater Shrimp‡
Total: 270 | Average: 270

†

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.