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SHHS Biology Field Day

Macroinvertebrate data: 05-21-2014



School: South Santiam Watershed Council

Date and time: May 21, 2014, 2:10 p.m.

Water quality: Fair

Number of people sorting/identifying: 7

Water type: riffle

Time spent sorting/identifying: 40 minutes

Weather:

Percent EPT: 80.00%

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

Field notes: Group 1: Afternoon

Sensitivity to pollution
Sensitive
Count
Caddisfly
3
Mayfly
23
Riffle beetle
0
Stonefly
2
Water penny
0
Dobsonfly
0
Sensitive total
9
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
0
Tolerant
Count
Aquatic worm
2
Blackfly
0
Leech
0
Midge
0
Snail
5
Mosquito larva
0
Tolerant total
2