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Matson Creek MWS Youth Program

Macroinvertebrate data: 11-02-2012



School: Marshfield High School

Date and time: Nov. 2, 2012, 12:30 p.m.

Water quality: Good

Number of people sorting/identifying: 2

Water type: pool

Time spent sorting/identifying: 60 minutes

Weather:

Percent EPT: 25.00%

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

Field notes: at site 4

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