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Macroinvertebrate data: 10-17-2015
School: Oregon State University
Date and time: Oct. 17, 2015, 10:47 a.m.
Water quality: Excellent
Number of people sorting/identifying: 13
Water type: riffle
Time spent sorting/identifying: 45 minutes
Weather:
Percent EPT: 21.43%
Note: EPT is the total number of caddisflies, mayflies, and stoneflies found divided by number of all bugs
Sensitivity to pollution
Sensitive
Count | |
---|---|
Caddisfly |
3 |
Mayfly |
3 |
Riffle beetle |
3 |
Stonefly |
3 |
Water penny |
3 |
Dobsonfly |
3 |
Sensitive total |
18 |
Somewhat Sensitive
Count | |
---|---|
Clam/mussel
|
2 |
Crane fly
|
2 |
Crayfish
|
2 |
Damselfly
|
2 |
Dragonfly
|
2 |
Scud
|
2 |
Fishfly
|
2 |
Alderfly
|
2 |
Mite
|
2 |
Somewhat sensitive total |
18 |
Tolerant
Count | |
---|---|
Aquatic worm
|
1 |
Blackfly
|
1 |
Leech
|
1 |
Midge
|
1 |
Snail
|
1 |
Mosquito larva
|
1 |
Tolerant total |
6 |