Crayfish, unidentified
Decapoda (order)
FOUND by Ja Flagg2018-07-19
Bridgton
ID Confirmed
Quality checked by JaFlagg
Peer reviewed by BTB
Field Notes
This was a shallow, rocky brook with adequate sunlight shining on it. Sand on the left shore. Noticeable water movement near center of the brook. Maple trees were overhanging near the shore. Two blue butterflies were observed. Nearby was a road, sounds of vehicles moving. Other wildlife was present - small fish and a frog.
Supporting Evidence
Crustacean with carapace, abdomen, 4 pairs of legs, one claw, 2 large antennae, swimmerets present, pleopods observed.
No seminal receptacle between legs, but gonopod legs were observed. This is evidence for a male crayfish. Tip to tail measurement was 5.9 cm.
Species Observation: Species Looked For
Did you find it?:
I think I found it
Scientific name:
Decapoda (order)Common name:
Crayfish, unidentified
Count of individuals:
1-10
Coverage:
Reproduction:
How big is it?:
5 - 10 cm
Is it male or female?:
Male
Sampling method:
Time search
Place Studied
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Map this species
Latitude:
N 44.049140 °
Longitude:
W -70.705110 °
Observation Site Information
Habitat:
Freshwater - In a stream or river
Trip Information
Name:
Willett Brook
Trip date:
Thu, 2018-07-19 12:35
Town or city:
Bridgton
Type of investigation:
Species and Habitat Survey
Ecosystem:
Freshwater
Watershed:
Presumpscot
MIDAS Code:
Habitat Observations
Species diversity:
Evidence of vectors:
Walking trail
People
Water temperature:
21.6°C
pH:
6.5
Dissolved oxygen:
6.0mg/L
Comments
Crayfish ID
Great photos! I need to see a photo of the top side of the crayfish to make a guess at the identification , although it is certainly in the genus Orconectes.