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Wenaha River

Macroinvertebrate data: 10-16-2013



School: Enterprise High School

Date and time: Oct. 16, 2013, 3:16 p.m.

Water quality: Good

Number of people sorting/identifying: 4

Water type: riffle

Time spent sorting/identifying: 20 minutes

Weather:

Percent EPT: 87.50%

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

Sensitivity to pollution
Sensitive
Count
Caddisfly
25
Mayfly
4
Riffle beetle
0
Stonefly
20
Water penny
0
Dobsonfly
0
Sensitive total
9
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
3
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
2
Tolerant
Count
Aquatic worm
3
Blackfly
0
Leech
1
Midge
0
Snail
0
Mosquito larva
0
Tolerant total
2