Invasive SpeciesGreen crab

Carcinus maenas
FOUND by 000027
2012-10-09
Falmouth
ID Confirmed
Quality checked by Olivia tapley
Peer reviewed by
Field Notes
Supporting Evidence
Photo of my evidence.
Had a pentagon-shaped shell with green and browm
Photo of my evidence.
Five spines points on the outside of the eye on the o
Photo of my evidence.
The claws are thin and sharp
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Carcinus maenas
Common name:
Green crab
Is it alive?: 
Some dead & some alive
Count of individuals: 
1-10
Coverage: 
Less than 1/4 covered
Reproduction: 
How big is it?: 
2 - 5 cm
Is it male or female?: 
Can't tell
Sampling method: 
Quadrat (user-placement)
Photo of our sampling method.
Place Studied
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Map this species
Latitude: 
N 43.732760 °
Longitude: 
W -70.204040 °
Observation Site Information
A photo of our study site.
Habitat: 
Coastal - Rocky intertidal
Trip Information
Name:
Town Landing
Trip date: 
Tue, 2012-10-09 16:51
Town or city: 
Falmouth
Type of investigation: 
Species and Habitat Survey
Ecosystem: 
Coastal
Watershed: 
Presumpscot
Time of low tide: 
Habitat Observations
Species diversity: 
3 different species
Evidence of vectors: 
Recent disturbance
Water temperature: 
14.0°C
pH: 
8.0
Dissolved oxygen: 
9.1mg/L
Salinity: 
31.4ppt

Comments

Submitted by Crab Lady on Thu, 2012-10-11 11:46.

Good work! You did a great

Good work! You did a great job identifying the key features of this crab.