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Cedar Creek

Macroinvertebrate data: 11-08-2010



School: St Pius X Church School

Date and time: Nov. 8, 2010, 11 a.m.

Water quality: Excellent

Number of people sorting/identifying: 29

Water type: riffle

Time spent sorting/identifying: 120 minutes

Weather:

Percent EPT: 68.61%

Note: EPT is the total number of caddisflies, mayflies, and stoneflies found divided by number of all bugs

Sensitivity to pollution
Sensitive
Count
Caddisfly
21
Mayfly
36
Riffle beetle
1
Stonefly
37
Water penny
8
Dobsonfly
0
Sensitive total
15
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
5
Damselfly
2
Dragonfly
0
Scud
3
Fishfly
1
Alderfly
2
Mite
0
Somewhat sensitive total
10
Tolerant
Count
Aquatic worm
16
Blackfly
1
Leech
0
Midge
4
Snail
0
Mosquito larva
0
Tolerant total
3