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Coast Creek Data

Macroinvertebrate data: 09-26-2014



School: Willamina High School

Date and time: Sept. 26, 2014, 1:33 p.m.

Water quality: Fair

Number of people sorting/identifying: 10

Water type: riffle

Time spent sorting/identifying: 30 minutes

Weather:

Percent EPT: 33.33%

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
6
Riffle beetle
0
Stonefly
5
Water penny
0
Dobsonfly
0
Sensitive total
9
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
7
Damselfly
0
Dragonfly
1
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
4
Tolerant
Count
Aquatic worm
0
Blackfly
0
Leech
0
Midge
0
Snail
18
Mosquito larva
0
Tolerant total
1