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South Santiam

Macroinvertebrate data: 09-21-2017



School: Liberty Elementary School (Tillamook)

Date and time: Sept. 21, 2017, 11 p.m.

Water quality: Good

Number of people sorting/identifying: 11

Water type: pool

Time spent sorting/identifying: 30 minutes

Weather: cloudy

Percent EPT: 13.64%

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

Field notes: Fun.

Sensitivity to pollution
Sensitive
Count
Caddisfly
1
Mayfly
1
Riffle beetle
5
Stonefly
1
Water penny
0
Dobsonfly
0
Sensitive total
12
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
4
Crayfish
2
Damselfly
1
Dragonfly
1
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
8
Tolerant
Count
Aquatic worm
1
Blackfly
0
Leech
0
Midge
0
Snail
5
Mosquito larva
0
Tolerant total
2