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SHHS Biology Field Day

Macroinvertebrate data: 05-21-2014



School: South Santiam Watershed Council

Date and time: May 21, 2014, 3:20 p.m.

Water quality: Good

Number of people sorting/identifying: 12

Water type: riffle

Time spent sorting/identifying: 40 minutes

Weather:

Percent EPT: 72.09%

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

Field notes: Group 3: Afternoon

Sensitivity to pollution
Sensitive
Count
Caddisfly
3
Mayfly
24
Riffle beetle
0
Stonefly
4
Water penny
0
Dobsonfly
0
Sensitive total
9
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
0
Damselfly
0
Dragonfly
3
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
2
Tolerant
Count
Aquatic worm
4
Blackfly
0
Leech
0
Midge
5
Snail
0
Mosquito larva
0
Tolerant total
2