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Riverfly Data

Riverfly Data

133Total Samples Shown
0Trigger Level Breaches

Scores†
Average Score: 12

Count Distribution‡

Groups

Cased Caddis‡
Total: 132 | Average: 10

Caseless Caddis‡
Total: 57 | Average: 4

Mayfly (Ephemeridae)‡
Total: 111 | Average: 9

Blue-Winged Olive (Ephemerellidae)‡
Total: 40 | Average: 3

Flat-Bodied Stone Clinger (Heptageniidae)‡
Total: 341 | Average: 26

Olives (Baetidae)‡
Total: 164 | Average: 13

Stoneflies (Plecoptera)‡
Total: 53 | Average: 4

Freshwater Shrimp‡
Total: 1554 | Average: 120

†

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.