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Bald Hill Farm- Mulkey Creek

Macroinvertebrate data: 03-16-2016



School: Adams Elementary School (Corvallis)

Date and time: March 16, 2016, 9:37 a.m.

Water quality: Excellent

Number of people sorting/identifying: 6

Water type: riffle

Time spent sorting/identifying: 60 minutes

Weather:

Percent EPT: 58.82%

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

Field notes: Newt

Sensitivity to pollution
Sensitive
Count
Caddisfly
4
Mayfly
22
Riffle beetle
1
Stonefly
4
Water penny
1
Dobsonfly
0
Sensitive total
15
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
2
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
2
Tolerant
Count
Aquatic worm
1
Blackfly
0
Leech
1
Midge
0
Snail
15
Mosquito larva
0
Tolerant total
3