Native SpeciesMayfly nymph

Ephemeroptera (order)
FOUND by flyfishing622
2017-10-18
Bridgton
ID Confirmed
Quality checked by Gilon B
Peer reviewed by Gilon B
Field Notes
I am happy because it helped me to know what kind of macroinvertebrates live in the brook. That way I can tie a fly that looks similar to the macroinvertberates that live in the brook. The smaller species were harder to identify.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
It has six legs with one claw on each leg. Mayflies are known to have six legs with one claw on each leg.
Photo of my evidence.
It has three long tails, which is characteristic of the mayfly nymph.
Photo of my evidence.
It has gills on its abdomen which distinguishes it from the stonefly nymph which has gills under its thorax.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Ephemeroptera (order)
Common name:
Mayfly nymph
Count of individuals: 
1-10
Coverage: 
Reproduction: 
How big is it?: 
0 - 2 cm
Is it male or female?: 
Can't tell
Sampling method: 
Net
Photo of our sampling method.
Place Studied
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Map this species
Latitude: 
N 44.052683 °
Longitude: 
W -70.685986 °
Observation Site Information
A photo of our study site.
Habitat: 
Freshwater - In a stream or river
Trip Information
Name:
Stevens Brook 4
Trip date: 
Wed, 2017-10-18 13:45
Town or city: 
Bridgton
Type of investigation: 
Species and Habitat Survey
Ecosystem: 
Freshwater
Watershed: 
Presumpscot
MIDAS Code: 
Habitat Observations
Species diversity: 
6 different species
Evidence of vectors: 
Paved road
Dirt road
Walking trail
Water temperature: 
14.9°C
pH: 
6.0
Dissolved oxygen: 
9.9mg/L

Comments

Hi flyfishing,
Great job changing up the wording in the written evidence. I especially appreciate the comparison to the stonefly nymph. I think I have been identifying them incorrectly!

Hi flyfishing622,

Your photos are really wonderful! They are clear and beautiful exemplars of both species you've posted. Nice work!

Best,
Kansas