chevron_left Back to Imnaha River

Imnaha River

Macroinvertebrate data: 10-11-2012



School: Enterprise High School

Date and time: Oct. 11, 2012, 1:30 p.m.

Water quality: Excellent

Number of people sorting/identifying: 3

Water type: pool

Time spent sorting/identifying: 15 minutes

Weather:

Percent EPT: 41.67%

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

Sensitivity to pollution
Sensitive
Count
Caddisfly
2
Mayfly
1
Riffle beetle
0
Stonefly
2
Water penny
0
Dobsonfly
0
Sensitive total
9
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
1
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
2
Tolerant
Count
Aquatic worm
1
Blackfly
0
Leech
1
Midge
1
Snail
0
Mosquito larva
3
Tolerant total
4