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Macroinvertebrate data: 10-11-2011



School: Crater Renaissance Academy

Date and time: Oct. 11, 2011, 2:30 p.m.

Water quality: Good

Number of people sorting/identifying: 40

Water type: riffle

Time spent sorting/identifying: 45 minutes

Weather:

Percent EPT: 21.07%

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

Field notes: an additional 26 Planaria/Flatworms were recorded.

Sensitivity to pollution
Sensitive
Count
Caddisfly
17
Mayfly
32
Riffle beetle
0
Stonefly
26
Water penny
0
Dobsonfly
0
Sensitive total
9
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
1
Damselfly
7
Dragonfly
0
Scud
230
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
6
Tolerant
Count
Aquatic worm
33
Blackfly
0
Leech
0
Midge
10
Snail
0
Mosquito larva
0
Tolerant total
2