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Riverfly Data

Riverfly Data

2Total Samples Shown
0Trigger Level Breaches

Scores With Trigger Level†
Average Score: 16

Count Distribution‡

Groups

Cased Caddis‡
Total: 84 | Average: 42

Caseless Caddis‡
Total: 90 | Average: 45

Mayfly (Ephemeridae)‡
Total: 13 | Average: 7

Blue-Winged Olive (Ephemerellidae)‡
Total: 1096 | Average: 548

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 72 | Average: 36

Olives (Baetidae)‡
Total: 196 | Average: 98

Stoneflies (Plecoptera)‡
Total: 1 | Average: 1

Freshwater Shrimp‡
Total: 997 | Average: 499

†

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.