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Tualatin Hills Nature Park
Macroinvertebrate data: 03-07-2018
School: Health and Science School
Date and time: March 7, 2018, 12:19 p.m.
Water quality: Poor
Number of people sorting/identifying: 5
Water type:
Time spent sorting/identifying: 45 minutes
Weather: 54
Percent EPT: 0.00%
Note: EPT is the total number of caddisflies, mayflies, and stoneflies found divided by number of all bugs
Field notes: Determining water quality based on the number of sensitive organisms still living in the pond.
Sensitivity to pollution
Sensitive
Count | |
---|---|
Caddisfly |
0 |
Mayfly |
0 |
Riffle beetle |
0 |
Stonefly |
0 |
Water penny |
0 |
Dobsonfly |
0 |
Sensitive total |
0 |
Somewhat Sensitive
Count | |
---|---|
Clam/mussel
|
0 |
Crane fly
|
0 |
Crayfish
|
0 |
Damselfly
|
0 |
Dragonfly
|
0 |
Scud
|
1 |
Fishfly
|
0 |
Alderfly
|
0 |
Mite
|
1 |
Somewhat sensitive total |
4 |
Tolerant
Count | |
---|---|
Aquatic worm
|
0 |
Blackfly
|
0 |
Leech
|
0 |
Midge
|
0 |
Snail
|
0 |
Mosquito larva
|
0 |
Tolerant total |
0 |