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Imnaha River
Macroinvertebrate data: 10-07-2010
School: Enterprise High School
Date and time: Oct. 7, 2010, 10:50 a.m.
Water quality: Good
Number of people sorting/identifying: 4
Water type: riffle
Time spent sorting/identifying: 15 minutes
Weather:
Percent EPT: 91.67%
Note: EPT is the total number of caddisflies, mayflies, and stoneflies found divided by number of all bugs
Sensitivity to pollution
Sensitive
Count | |
---|---|
Caddisfly |
70 |
Mayfly |
10 |
Riffle beetle |
0 |
Stonefly |
30 |
Water penny |
0 |
Dobsonfly |
0 |
Sensitive total |
9 |
Somewhat Sensitive
Count | |
---|---|
Clam/mussel
|
0 |
Crane fly
|
3 |
Crayfish
|
0 |
Damselfly
|
0 |
Dragonfly
|
0 |
Scud
|
0 |
Fishfly
|
0 |
Alderfly
|
0 |
Mite
|
2 |
Somewhat sensitive total |
4 |
Tolerant
Count | |
---|---|
Aquatic worm
|
3 |
Blackfly
|
0 |
Leech
|
0 |
Midge
|
0 |
Snail
|
2 |
Mosquito larva
|
0 |
Tolerant total |
2 |