
Riverfly Data
2Total Samples Shown
0Trigger Level Breaches
Groups
Cased Caddis‡‡Total: 2 | Average: 1
Caseless Caddis‡‡Total: 45 | Average: 23
Mayfly (Ephemeridae)‡‡Total: 0 | Average: 0
Blue-Winged Olive (Ephemerellidae)‡‡Total: 278 | Average: 139
Flat-Bodied Stone Clinger (Heptageniidae)‡‡Total: 0 | Average: 0
Olives (Baetidae)‡‡Total: 310 | Average: 155
Stoneflies (Plecoptera)‡‡Total: 0 | Average: 0
Freshwater Shrimp‡‡Total: 3 | Average: 2
†
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.