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Hamilton Creek - LHS & Santiam Watershed Council

Macroinvertebrate data: 03-12-2014



School: South Santiam Watershed Council

Date and time: March 12, 2014, 9:10 a.m.

Water quality: Good

Number of people sorting/identifying: 8

Water type: riffle

Time spent sorting/identifying: 45 minutes

Weather:

Percent EPT: 83.33%

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

Field notes: GROUP 2 high water

Sensitivity to pollution
Sensitive
Count
Caddisfly
2
Mayfly
12
Riffle beetle
0
Stonefly
1
Water penny
0
Dobsonfly
0
Sensitive total
9
Somewhat Sensitive
Count
Clam/mussel
1
Crane fly
0
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