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Matson Creek MWS Youth Program
Macroinvertebrate data: 11-02-2012
School: Marshfield High School
Date and time: Nov. 2, 2012, 2:26 p.m.
Water quality: Good
Number of people sorting/identifying: 3
Water type: riffle
Time spent sorting/identifying: 60 minutes
Weather:
Percent EPT: 53.06%
Note: EPT is the total number of caddisflies, mayflies, and stoneflies found divided by number of all bugs
Field notes: We collected insects in the water with a bag/filter. Bugs were in the water/mud and we kicked the mud in the stream and it went into the filter. We took these suction tubes and we sucked up as much bugs as we could from the bin that we collected from the mud.
Sensitivity to pollution
Sensitive
Count | |
---|---|
Caddisfly![]() |
10 |
Mayfly![]() |
13 |
Riffle beetle![]() |
0 |
Stonefly![]() |
3 |
Water penny![]() |
0 |
Dobsonfly![]() |
0 |
Sensitive total |
9 |
Somewhat Sensitive
Count | |
---|---|
Clam/mussel
![]() |
0 |
Crane fly
![]() |
1 |
Crayfish
![]() |
0 |
Damselfly
![]() |
0 |
Dragonfly
![]() |
0 |
Scud
![]() |
11 |
Fishfly
![]() |
0 |
Alderfly
![]() |
0 |
Mite
![]() |
9 |
Somewhat sensitive total |
6 |
Tolerant
Count | |
---|---|
Aquatic worm
![]() |
0 |
Blackfly
![]() |
0 |
Leech
![]() |
0 |
Midge
![]() |
0 |
Snail
![]() |
2 |
Mosquito larva
![]() |
0 |
Tolerant total |
1 |