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REALMS Downstream Study Site

Macroinvertebrate data: 11-06-2018



School: Realms (rimrock Expeditionary Alternative Learning Middle School)

Date and time: Nov. 6, 2018, 11 a.m.

Water quality: Good

Number of people sorting/identifying: 2

Water type: riffle

Time spent sorting/identifying: 20 minutes

Weather: Sunny, cold

Percent EPT: 97.58%

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
337
Riffle beetle
5
Stonefly
105
Water penny
0
Dobsonfly
1
Sensitive total
15
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
5
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
2
Tolerant
Count
Aquatic worm
0
Blackfly
0
Leech
0
Midge
0
Snail
0
Mosquito larva
0
Tolerant total
0