Invasive SpeciesGreen crab

Carcinus maenas
FOUND by msk_seastar1
2013-05-16
Kennebunk
ID Confirmed
Quality checked by mdenniston
Peer reviewed by msk_limpet2
Field Notes
It was a fabulous day at the beach, the waves were crashing on the rocks. It was a warm spring day at the rocky intertidal, the cool breeze and cool atmosphere of the ocean was very relaxing. Many creatures were found, and everyone enjoyed searching for them in their habitat.
Supporting Evidence
Photo of my evidence.
I believe that this is a Green crab because generally the color of the Green crab is green.
Photo of my evidence.
I believe this is a Green Crab because you can clearly see the 5 ridges on the side of the Crab up to its eye.
Photo of my evidence.
I believe this is a Green Crab because it has a shell that is in a kind of pentagon shape (5 sides).
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: 
Reproduction: 
How big is it?: 
2 - 5 cm
Is it male or female?: 
Sampling method: 
Quadrat (user-placement)
Photo of our sampling method.
Place Studied
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Map this species
Latitude: 
N 43.344080 °
Longitude: 
W -70.486630 °
Observation Site Information
A photo of our study site.
Habitat: 
Coastal - Rocky intertidal
Trip Information
Name:
Kennebunk Beach
Trip date: 
Thu, 2013-05-16 09:00
Town or city: 
Kennebunk
Type of investigation: 
Species and Habitat Survey
Ecosystem: 
Coastal
Watershed: 
Piscataqua
Time of low tide: 
Thu, 2013-05-16 10:13
Habitat Observations
Species diversity: 
36 different species
Evidence of vectors: 
Paved road
People
Water temperature: 
13.6°C
pH: 
8.0
Dissolved oxygen: 
9.0mg/L
Salinity: 
33.5ppt

Comments

Nice work noting the key features of this crab. That's a beautiful shot of the five spines in the middle photo!