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REALMS Downstream Study Site 2

Macroinvertebrate data: 10-12-2023



School: Realms (rimrock Expeditionary Alternative Learning Middle School)

Date and time: Oct. 12, 2023, 1:10 p.m.

Water quality: Fair

Number of people sorting/identifying: 10

Water type: riffle

Time spent sorting/identifying: 60 minutes

Weather: cloudy and cold

Percent EPT: 89.40%

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

Sensitivity to pollution
Sensitive
Count
Caddisfly
6
Mayfly
91
Riffle beetle
0
Stonefly
97
Water penny
0
Dobsonfly
4
Sensitive total
12
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
19
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