Invasive SpeciesGreen crab

Carcinus maenas
FOUND by Greasy Pugasoras
Cape Elizabeth
ID Confirmed
Quality checked by Mrs. Moniz
Peer reviewed by Ander
Field Notes
On Tuesday, October 24th, 2017 we went to Kettle Cove Beach in Cape Elizabeth, Maine. It was very windy the whole trip, which made it feel cold out. The tide was going out and the temperature was 63ºF. The waves weren’t big, but the sound of the salt water crashing against the sand could be heard from across the parking lot. The islands and lands across from the beach were not as visible as they would be on a perfectly clear day. It was a bit foggy out, yet the sun was still visible behind the many clouds. The smell of the salty water, seaweed, and the tidepool creatures could be identified in a heartbeat. The rocks were covered with slippery seaweed that made it hard to travel without losing balance. Our goal was to find the Green Crab to stop the spread of invasive species in Maine.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
This is a photo of a Green Crab because the ID Sheets showed that a distinct attribute of this crab is the pentagon shaped shell, which is shown in the photo. I know that this is not an Asian Shore Crab because the shell of an Asian Shore crab is square shaped, while the Green Crab clearly has a pentagon shaped shell.
Photo of my evidence.
This is a picture of the Green Crab because it shows the crab’s really sharp claws, pointed legs, and greenish-brown color that are all main characteristics of the Green Crab. This picture is not the Rock Crab because the Rock Crab has dark and light colored bands around its leg. While in this picture you can see that the Green Crab does not have dark and light color bands around its legs
Photo of my evidence.
This is a photo of a Green Crab because a distinct feature of this species is that it has five spines on each side of its eye, which you can see in the picture. I know this is not a Rock Crab because Rock Crabs have 10 spines on each side of its eye, and the crab in the picture shown only has fives.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Carcinus maenas
Common name:
Green crab
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 43.561144 °
W -70.217528 °
Observation Site Information
A photo of our study site.
Coastal - Beach or dune
Trip Information
Kettle Cove
Trip date: 
Tue, 2017-10-24 09:30
Town or city: 
Cape Elizabeth
Type of investigation: 
Species Survey
Time of low tide: 
Tue, 2017-10-24 08:26


Well presented evidences and great visuals!