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Bald Hill Farm- Mulkey Creek
Macroinvertebrate data: 03-26-2016
School: Adams Elementary School (Corvallis)
Date and time: March 26, 2016, 1:48 p.m.
Water quality: Good
Number of people sorting/identifying: 12
Water type: pool
Time spent sorting/identifying: 20 minutes
Weather:
Percent EPT: 8.00%
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 |
0 |
Riffle beetle |
0 |
Stonefly |
1 |
Water penny |
0 |
Dobsonfly |
0 |
Sensitive total |
6 |
Somewhat Sensitive
Count | |
---|---|
Clam/mussel
|
0 |
Crane fly
|
1 |
Crayfish
|
0 |
Damselfly
|
0 |
Dragonfly
|
0 |
Scud
|
0 |
Fishfly
|
0 |
Alderfly
|
0 |
Mite
|
0 |
Somewhat sensitive total |
2 |
Tolerant
Count | |
---|---|
Aquatic worm
|
6 |
Blackfly
|
0 |
Leech
|
0 |
Midge
|
1 |
Snail
|
15 |
Mosquito larva
|
0 |
Tolerant total |
3 |