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Wenaha River

Macroinvertebrate data: 10-04-2017



School: Enterprise Elementary School

Date and time: Oct. 4, 2017, 12:45 p.m.

Water quality: Good

Number of people sorting/identifying: 3

Water type: riffle

Time spent sorting/identifying: 15 minutes

Weather: sunny

Percent EPT: 77.78%

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

Sensitivity to pollution
Sensitive
Count
Caddisfly
5
Mayfly
1
Riffle beetle
1
Stonefly
15
Water penny
1
Dobsonfly
0
Sensitive total
15
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
0
Tolerant
Count
Aquatic worm
1
Blackfly
1
Leech
0
Midge
1
Snail
0
Mosquito larva
1
Tolerant total
4