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Clemens Park - Alsea River

Macroinvertebrate data: 11-05-2014



School: Oregon State University

Date and time: Nov. 5, 2014, 9:17 a.m.

Water quality: Excellent

Number of people sorting/identifying: 7

Water type: riffle

Time spent sorting/identifying: 30 minutes

Weather:

Percent EPT: 41.67%

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
5
Riffle beetle
0
Stonefly
3
Water penny
0
Dobsonfly
0
Sensitive total
9
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
1
Crayfish
5
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
0
Mite
1
Somewhat sensitive total
6
Tolerant
Count
Aquatic worm
1
Blackfly
0
Leech
0
Midge
1
Snail
5
Mosquito larva
0
Tolerant total
3