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Macroinvertebrate data: 10-11-2011



School: Crater Renaissance Academy

Date and time: Oct. 11, 2011, 10:30 a.m.

Water quality: Excellent

Number of people sorting/identifying: 40

Water type: riffle

Time spent sorting/identifying: 45 minutes

Weather:

Percent EPT: 23.01%

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

Field notes: an additional 22 Planaria/Flatworms were recorded

Sensitivity to pollution
Sensitive
Count
Caddisfly
23
Mayfly
40
Riffle beetle
1
Stonefly
15
Water penny
0
Dobsonfly
0
Sensitive total
12
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
3
Damselfly
0
Dragonfly
0
Scud
175
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
4
Tolerant
Count
Aquatic worm
54
Blackfly
0
Leech
17
Midge
11
Snail
0
Mosquito larva
0
Tolerant total
3