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Bald Hill Farm- Mulkey Creek

Macroinvertebrate data: 05-05-2016



School: Adams Elementary School (Corvallis)

Date and time: May 5, 2016, 10:46 a.m.

Water quality: Good

Number of people sorting/identifying: 4

Water type: riffle

Time spent sorting/identifying: 34 minutes

Weather:

Percent EPT: 50.00%

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

Sensitivity to pollution
Sensitive
Count
Caddisfly
2
Mayfly
3
Riffle beetle
0
Stonefly
1
Water penny
0
Dobsonfly
0
Sensitive total
9
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
0
Damselfly
1
Dragonfly
1
Scud
1
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
6
Tolerant
Count
Aquatic worm
1
Blackfly
0
Leech
0
Midge
0
Snail
2
Mosquito larva
0
Tolerant total
2