
Riverfly Data
22Total Samples Shown
0Trigger Level Breaches
Groups
Cased Caddis‡‡Total: 35 | Average: 3
Caseless Caddis‡‡Total: 25 | Average: 2
Mayfly (Ephemeridae)‡‡Total: 50 | Average: 5
Blue-Winged Olive (Ephemerellidae)‡‡Total: 31 | Average: 3
Flat-Bodied Stone Clinger (Heptageniidae)‡‡Total: 41 | Average: 4
Olives (Baetidae)‡‡Total: 468 | Average: 43
Stoneflies (Plecoptera)‡‡Total: 5 | Average: 0
Freshwater Shrimp‡‡Total: 1533 | Average: 139
†
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.