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Sunset Park

Macroinvertebrate data: 04-17-2019



School: Avery House Nature Center: Nature School Class

Date and time: April 17, 2019, 2 p.m.

Water quality: Good

Number of people sorting/identifying: 7

Water type: pool

Time spent sorting/identifying: 30 minutes

Weather: sunny

Percent EPT: 13.64%

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

Field notes: beaver dams make creek into ponds / tadpole

Sensitivity to pollution
Sensitive
Count
Caddisfly
10
Mayfly
2
Riffle beetle
0
Stonefly
0
Water penny
0
Dobsonfly
0
Sensitive total
6
Somewhat Sensitive
Count
Clam/mussel
5
Crane fly
0
Crayfish
0
Damselfly
5
Dragonfly
6
Scud
20
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
8
Tolerant
Count
Aquatic worm
3
Blackfly
10
Leech
3
Midge
2
Snail
20
Mosquito larva
2
Tolerant total
6