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Holley Salmon Watch

Macroinvertebrate data: 09-22-2017



School: Holley Elementary School

Date and time: Sept. 22, 2017, 9:41 a.m.

Water quality: Good

Number of people sorting/identifying: 12

Water type: riffle

Time spent sorting/identifying: 45 minutes

Weather: sunny

Percent EPT: 53.85%

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

Sensitivity to pollution
Sensitive
Count
Caddisfly
0
Mayfly
8
Riffle beetle
3
Stonefly
6
Water penny
0
Dobsonfly
1
Sensitive total
12
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
2
Mite
2
Somewhat sensitive total
4
Tolerant
Count
Aquatic worm
3
Blackfly
0
Leech
0
Midge
1
Snail
0
Mosquito larva
0
Tolerant total
2