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SE Belmont
Macroinvertebrate data: 10-27-2010
School: Black Butte Elementary School
Date and time: Oct. 27, 2010, 1:33 p.m.
Water quality: Excellent
Number of people sorting/identifying: 2
Water type: riffle
Time spent sorting/identifying: 30 minutes
Weather:
Percent EPT: 9.84%
Note: EPT is the total number of caddisflies, mayflies, and stoneflies found divided by number of all bugs
Sensitivity to pollution
Sensitive
| Count | |
|---|---|
Caddisfly
|
1 |
Mayfly
|
1 |
Riffle beetle
|
5 |
Stonefly
|
4 |
Water penny
|
3 |
Dobsonfly
|
3 |
| Sensitive total |
18 |
Somewhat Sensitive
| Count | |
|---|---|
Clam/mussel
|
5 |
Crane fly
|
2 |
Crayfish
|
0 |
Damselfly
|
5 |
Dragonfly
|
3 |
Scud
|
2 |
Fishfly
|
5 |
Alderfly
|
12 |
Mite
|
0 |
|
Somewhat sensitive total |
14 |
Tolerant
| Count | |
|---|---|
Aquatic worm
|
3 |
Blackfly
|
0 |
Leech
|
0 |
Midge
|
0 |
Snail
|
4 |
Mosquito larva
|
3 |
|
Tolerant total |
3 |