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Mary's river test site

Macroinvertebrate data: 08-25-2015



School: Oregon State University

Date and time: Aug. 25, 2015, 11:40 a.m.

Water quality: Fair

Number of people sorting/identifying: 2

Water type: pool

Time spent sorting/identifying: 20 minutes

Weather:

Percent EPT: 5.26%

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

Field notes: Sucker 1 Catfish 2  

Sensitivity to pollution
Sensitive
Count
Caddisfly
1
Mayfly
0
Riffle beetle
8
Stonefly
0
Water penny
0
Dobsonfly
0
Sensitive total
6
Somewhat Sensitive
Count
Clam/mussel
3
Crane fly
0
Crayfish
1
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
4
Tolerant
Count
Aquatic worm
0
Blackfly
0
Leech
0
Midge
0
Snail
6
Mosquito larva
0
Tolerant total
1