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Hoover's Dixon Creek Water Quality
Macroinvertebrate data: 06-12-2012
School: Hoover Elementary School (Salem)
Date and time: June 12, 2012, 10:09 a.m.
Water quality: Excellent
Number of people sorting/identifying: 30
Water type: riffle
Time spent sorting/identifying: 45 minutes
Weather:
Percent EPT: 11.65%
Note: EPT is the total number of caddisflies, mayflies, and stoneflies found divided by number of all bugs
Field notes: We identified the adult crayfish as being the native for our creek by finding the white dot on each of its claw joints. Great group! Saw things in the creek that we didnt fully sort. Water was muddy in spots and clear in other spots. Water was cold for Caleb! Overcast sky. Algae and sharp rocks and larvae that looked like snot. Lots of crayfish home spots. Caught a sculpin
Sensitivity to pollution
Sensitive
| Count | |
|---|---|
Caddisfly
|
6 |
Mayfly
|
0 |
Riffle beetle
|
0 |
Stonefly
|
6 |
Water penny
|
1 |
Dobsonfly
|
6 |
| Sensitive total |
12 |
Somewhat Sensitive
| Count | |
|---|---|
Clam/mussel
|
1 |
Crane fly
|
0 |
Crayfish
|
3 |
Damselfly
|
0 |
Dragonfly
|
0 |
Scud
|
0 |
Fishfly
|
1 |
Alderfly
|
0 |
Mite
|
14 |
|
Somewhat sensitive total |
8 |
Tolerant
| Count | |
|---|---|
Aquatic worm
|
41 |
Blackfly
|
1 |
Leech
|
3 |
Midge
|
2 |
Snail
|
8 |
Mosquito larva
|
10 |
|
Tolerant total |
6 |