chevron_left Back to Holley Salmon Watch

Holley Salmon Watch

Macroinvertebrate data: 09-22-2017



School: Holley Elementary School

Date and time: Sept. 22, 2017, 10:25 a.m.

Water quality: Good

Number of people sorting/identifying: 12

Water type: riffle

Time spent sorting/identifying: 45 minutes

Weather: sunny

Percent EPT: 56.82%

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

Sensitivity to pollution
Sensitive
Count
Caddisfly
0
Mayfly
14
Riffle beetle
0
Stonefly
11
Water penny
3
Dobsonfly
1
Sensitive total
12
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
1
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
1
Alderfly
5
Mite
4
Somewhat sensitive total
8
Tolerant
Count
Aquatic worm
4
Blackfly
0
Leech
0
Midge
0
Snail
0
Mosquito larva
0
Tolerant total
1