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Bald Hill Farm- Mulkey Creek

Macroinvertebrate data: 06-17-2016



School: Adams Elementary School (Corvallis)

Date and time: June 17, 2016, 10:40 a.m.

Water quality: Good

Number of people sorting/identifying: 4

Water type: riffle

Time spent sorting/identifying: 35 minutes

Weather:

Percent EPT: 39.29%

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

Sensitivity to pollution
Sensitive
Count
Caddisfly
4
Mayfly
5
Riffle beetle
0
Stonefly
2
Water penny
0
Dobsonfly
0
Sensitive total
9
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
0
Damselfly
0
Dragonfly
1
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
2
Tolerant
Count
Aquatic worm
0
Blackfly
0
Leech
0
Midge
0
Snail
15
Mosquito larva
1
Tolerant total
2