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REALMS Tumalo Creek Study Site 1

Macroinvertebrate data: 11-04-2013



School: Realms (rimrock Expeditionary Alternative Learning Middle School)

Date and time: Nov. 4, 2013, 10:32 p.m.

Water quality: Good

Number of people sorting/identifying: 6

Water type: riffle

Time spent sorting/identifying: 45 minutes

Weather:

Percent EPT: 95.10%

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

Field notes: Average of two different crews on two different days.

Sensitivity to pollution
Sensitive
Count
Caddisfly
5
Mayfly
75
Riffle beetle
0
Stonefly
56
Water penny
0
Dobsonfly
0
Sensitive total
9
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
1
Blackfly
0
Leech
0
Midge
0
Snail
1
Mosquito larva
0
Tolerant total
2