chevron_left Back to CWA Johnson Creek Tolford Rd
CWA Johnson Creek Tolford Rd
Macroinvertebrate data: 11-03-2010
School: Clackamas Web Academy
Date and time: Nov. 3, 2010, 10:30 p.m.
Water quality: Poor
Number of people sorting/identifying: 3
Water type: riffle
Time spent sorting/identifying: 80 minutes
Weather:
Percent EPT: 0.00%
Note: EPT is the total number of caddisflies, mayflies, and stoneflies found divided by number of all bugs
Field notes: We found the rock snails and the mussels in little groups kind of like communites.
Sensitivity to pollution
Sensitive
| Count | |
|---|---|
Caddisfly
|
0 |
Mayfly
|
0 |
Riffle beetle
|
0 |
Stonefly
|
0 |
Water penny
|
0 |
Dobsonfly
|
0 |
| Sensitive total |
0 |
Somewhat Sensitive
| Count | |
|---|---|
Clam/mussel
|
463 |
Crane fly
|
0 |
Crayfish
|
3 |
Damselfly
|
0 |
Dragonfly
|
0 |
Scud
|
0 |
Fishfly
|
0 |
Alderfly
|
0 |
Mite
|
0 |
|
Somewhat sensitive total |
4 |
Tolerant
| Count | |
|---|---|
Aquatic worm
|
0 |
Blackfly
|
0 |
Leech
|
0 |
Midge
|
0 |
Snail
|
291 |
Mosquito larva
|
0 |
|
Tolerant total |
1 |