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Riverfly Data

Riverfly Data

132Total Samples Shown
0Trigger Level Breaches

Scores†
Average Score: 13

Count Distribution‡

Groups

Cased Caddis‡
Total: 175 | Average: 13

Caseless Caddis‡
Total: 353 | Average: 27

Mayfly (Ephemeridae)‡
Total: 340 | Average: 26

Blue-Winged Olive (Ephemerellidae)‡
Total: 268 | Average: 21

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 0 | Average: 0

Olives (Baetidae)‡
Total: 1064 | Average: 82

Stoneflies (Plecoptera)‡
Total: 16 | Average: 1

Freshwater Shrimp‡
Total: 3938 | Average: 303

†

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.