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Wenaha River

Macroinvertebrate data: 10-08-2014



School: Enterprise High School

Date and time: Oct. 8, 2014, 1 p.m.

Water quality: Good

Number of people sorting/identifying: 7

Water type: riffle

Time spent sorting/identifying: 20 minutes

Weather:

Percent EPT: 90.43%

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

Field notes: caught a sculpin

Sensitivity to pollution
Sensitive
Count
Caddisfly
200
Mayfly
30
Riffle beetle
2
Stonefly
25
Water penny
0
Dobsonfly
0
Sensitive total
12
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
1
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
0
Mite
8
Somewhat sensitive total
4
Tolerant
Count
Aquatic worm
16
Blackfly
0
Leech
0
Midge
0
Snail
0
Mosquito larva
0
Tolerant total
1