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Macroinvertebrate data: 09-17-2014



School: Oregon State University

Date and time: Sept. 17, 2014, 11 a.m.

Water quality: Good

Number of people sorting/identifying: 2

Water type: pool

Time spent sorting/identifying: 30 minutes

Weather:

Percent EPT: 42.86%

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

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