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Seven Oak Salmon Watch, Durski

Macroinvertebrate data: 09-19-2017



School: Seven Oak Middle School

Date and time: Sept. 19, 2017, 11:21 a.m.

Water quality: Fair

Number of people sorting/identifying: 7

Water type: riffle

Time spent sorting/identifying: 25 minutes

Weather: overcast

Percent EPT: 32.35%

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

Sensitivity to pollution
Sensitive
Count
Caddisfly
0
Mayfly
11
Riffle beetle
18
Stonefly
0
Water penny
2
Dobsonfly
0
Sensitive total
9
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
0
Blackfly
1
Leech
0
Midge
0
Snail
2
Mosquito larva
0
Tolerant total
2