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Brice Creek West Trailhead

Macroinvertebrate data: 09-13-2010



School: Al Kennedy Alternative High School

Date and time: Sept. 13, 2010, 10 a.m.

Water quality: Fair

Number of people sorting/identifying: 11

Water type: riffle

Time spent sorting/identifying: 60 minutes

Weather:

Percent EPT: 92.31%

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

Field notes: first field trip of 2010/11 sampling for macros were done in riffles, faster water and pools

Sensitivity to pollution
Sensitive
Count
Caddisfly
6
Mayfly
2
Riffle beetle
0
Stonefly
4
Water penny
1
Dobsonfly
0
Sensitive total
12
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
0
Leech
0
Midge
0
Snail
0
Mosquito larva
0
Tolerant total
0