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Macroinvertebrate data: 08-06-2011



School: Oregon State University

Date and time: Aug. 6, 2011, 11:31 a.m.

Water quality: Excellent

Number of people sorting/identifying: 15

Water type: pool

Time spent sorting/identifying: 30 minutes

Weather:

Percent EPT: 7.14%

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

Field notes: These Macros were collected from the pond between the Dining Hall and office building.

Sensitivity to pollution
Sensitive
Count
Caddisfly
0
Mayfly
1
Riffle beetle
1
Stonefly
0
Water penny
1
Dobsonfly
1
Sensitive total
12
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
1
Crayfish
0
Damselfly
1
Dragonfly
1
Scud
3
Fishfly
1
Alderfly
2
Mite
0
Somewhat sensitive total
12
Tolerant
Count
Aquatic worm
0
Blackfly
0
Leech
0
Midge
1
Snail
0
Mosquito larva
0
Tolerant total
1