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Cedar Creek

Macroinvertebrate data: 11-12-2010



School: Forest Grove Community School

Date and time: Nov. 12, 2010, 9:58 a.m.

Water quality: Excellent

Number of people sorting/identifying: 26

Water type: riffle

Time spent sorting/identifying: 80 minutes

Weather:

Percent EPT: 88.99%

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

Field notes: Doing "kick netting" was very different from what we have done before with a program called "Leaf Pack".

Sensitivity to pollution
Sensitive
Count
Caddisfly
19
Mayfly
25
Riffle beetle
1
Stonefly
53
Water penny
1
Dobsonfly
0
Sensitive total
15
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
0
Mite
2
Somewhat sensitive total
2
Tolerant
Count
Aquatic worm
7
Blackfly
0
Leech
0
Midge
0
Snail
1
Mosquito larva
0
Tolerant total
2