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Riverfly Data

Riverfly Data

63Total Samples Shown
0Trigger Level Breaches

Scores†
Average Score: 11

Count Distribution‡

Groups

Cased Caddis‡
Total: 74 | Average: 6

Caseless Caddis‡
Total: 35 | Average: 3

Mayfly (Ephemeridae)‡
Total: 147 | Average: 12

Blue-Winged Olive (Ephemerellidae)‡
Total: 47 | Average: 4

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 237 | Average: 20

Olives (Baetidae)‡
Total: 133 | Average: 11

Stoneflies (Plecoptera)‡
Total: 40 | Average: 3

Freshwater Shrimp‡
Total: 876 | Average: 73

†

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.