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Ashland Creek below Ashland Treatment Plant
Macroinvertebrate data: 04-12-2012
School: Oregon State University
Date and time: April 12, 2012, 10 a.m.
Water quality: Good
Number of people sorting/identifying: 7
Water type: riffle
Time spent sorting/identifying: 40 minutes
Weather:
Percent EPT: 86.49%
Note: EPT is the total number of caddisflies, mayflies, and stoneflies found divided by number of all bugs
Field notes: Part of a watershed study with John Muir Middle School Students. Students sampled water quality metrics at the top of the Ashland Watershed near the Lower Reservoir. Data collected with RVCOG and Lomakatsi partnership.
Sensitivity to pollution
Sensitive
Count | |
---|---|
Caddisfly |
4 |
Mayfly |
25 |
Riffle beetle |
1 |
Stonefly |
3 |
Water penny |
0 |
Dobsonfly |
0 |
Sensitive total |
12 |
Somewhat Sensitive
Count | |
---|---|
Clam/mussel
|
0 |
Crane fly
|
0 |
Crayfish
|
0 |
Damselfly
|
0 |
Dragonfly
|
0 |
Scud
|
2 |
Fishfly
|
0 |
Alderfly
|
0 |
Mite
|
0 |
Somewhat sensitive total |
2 |
Tolerant
Count | |
---|---|
Aquatic worm
|
1 |
Blackfly
|
0 |
Leech
|
0 |
Midge
|
1 |
Snail
|
0 |
Mosquito larva
|
0 |
Tolerant total |
2 |