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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, midnight

Water quality: Fair

Number of people sorting/identifying: 11

Water type: riffle

Time spent sorting/identifying: 45 minutes

Weather:

Percent EPT: 90.24%

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

Field notes: GROUP 4

Sensitivity to pollution
Sensitive
Count
Caddisfly
1
Mayfly
36
Riffle beetle
0
Stonefly
0
Water penny
1
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
0
Blackfly
1
Leech
0
Midge
0
Snail
2
Mosquito larva
0
Tolerant total
2