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Bear Creek at WWCLC
Macroinvertebrate data: 11-14-2013
School: Oregon State University
Date and time: Nov. 14, 2013, 1:45 p.m.
Water quality: Fair
Number of people sorting/identifying: 20
Water type: riffle
Time spent sorting/identifying: 25 minutes
Weather:
Percent EPT: 84.21%
Note: EPT is the total number of caddisflies, mayflies, and stoneflies found divided by number of all bugs
Field notes: Living Waters 6th grade class teamed up with 4th graders to plant trees and check macroinvertebrates behind Willow Wind on 11/14/13.
Sensitivity to pollution
Sensitive
| Count | |
|---|---|
Caddisfly
|
4 |
Mayfly
|
7 |
Riffle beetle
|
0 |
Stonefly
|
5 |
Water penny
|
0 |
Dobsonfly
|
0 |
| Sensitive total |
9 |
Somewhat Sensitive
| Count | |
|---|---|
Clam/mussel
|
0 |
Crane fly
|
0 |
Crayfish
|
0 |
Damselfly
|
0 |
Dragonfly
|
0 |
Scud
|
0 |
Fishfly
|
0 |
Alderfly
|
0 |
Mite
|
0 |
|
Somewhat sensitive total |
0 |
Tolerant
| Count | |
|---|---|
Aquatic worm
|
2 |
Blackfly
|
1 |
Leech
|
0 |
Midge
|
0 |
Snail
|
0 |
Mosquito larva
|
0 |
|
Tolerant total |
2 |