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Salmon River #1

Macroinvertebrate data: 09-23-2010



School: Madison High School

Date and time: Sept. 23, 2010, 11 p.m.

Water quality: Good

Number of people sorting/identifying: 4

Water type: riffle

Time spent sorting/identifying: 20 minutes

Weather:

Percent EPT: 78.26%

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

Sensitivity to pollution
Sensitive
Count
Caddisfly
0
Mayfly
9
Riffle beetle
0
Stonefly
9
Water penny
0
Dobsonfly
0
Sensitive total
6
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
1
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
2
Tolerant
Count
Aquatic worm
1
Blackfly
1
Leech
0
Midge
2
Snail
0
Mosquito larva
0
Tolerant total
3