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Joseph Prairie Creek

Macroinvertebrate data: 10-26-2010



School: Enterprise High School

Date and time: Oct. 26, 2010, 8:32 a.m.

Water quality: Excellent

Number of people sorting/identifying: 7

Water type: riffle

Time spent sorting/identifying: 15 minutes

Weather:

Percent EPT: 64.58%

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

Sensitivity to pollution
Sensitive
Count
Caddisfly
11
Mayfly
5
Riffle beetle
1
Stonefly
15
Water penny
0
Dobsonfly
1
Sensitive total
15
Somewhat Sensitive
Count
Clam/mussel
3
Crane fly
5
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
2
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
6
Tolerant
Count
Aquatic worm
2
Blackfly
0
Leech
0
Midge
2
Snail
0
Mosquito larva
1
Tolerant total
3