Invasive SpeciesGreen crab

Carcinus maenas
FOUND by Carolina Crustations
Cape Elizabeth
ID Confirmed
Quality checked by Mrs. Fanning
Peer reviewed by The Golden Ratio
Field Notes
We were collecting data so we could see if the Green Crab was at Kettle Cove. We went to Kettle Cove on 10/24/17. As we stepped off the bus it smelled only of saltwater and bird poop. It was a wet, windy and cloudy day, although it wasn’t that cold. All we could hear was the crash of the waves and other students talking. At first we thought it was going to be impossible to find the Green Crab, because of all the seaweed that covered all of the rocks and tide pools. It also didn’t help that it took us forever to get from one place to another because of how slippery it was, and we had a time limit. But within 30 minutes we found a tiny Green Crab, we took notes and pictures, then kept on looking. Later, we found a bigger Green Crab that displayed the characteristics of the crab more clearly. So we took pictures of that crab as well.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
This is the Green Crab, because the green crab has a pentagon shaped shell, and 5 spines on each side of eyes which is visible in this picture. It was noticed on the crab that was found.
Photo of my evidence.
This is the Green Crab, because the crab that was found had common characteristics of the Green Crab. It had long, thin, sharp, pointy legs, which is clearly visible in this picture.
Photo of my evidence.
This is the Green Crab. The pencil shows the size comparison. The pencil was about 17.3 cm long. One of the common characteristics of the Green Crab is that the width of the shell is around 10cm. It was in the range of length that Green Crabs should be in.
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 43.561175 °
W -70.217571 °
Observation Site Information
A photo of our study site.
Coastal - Beach or dune
Trip Information
Kettle Cove Moniz 2017
Trip date: 
Tue, 2017-10-24 09:30
Town or city: 
Cape Elizabeth
Type of investigation: 
Species Survey
Time of low tide: 
Fri, 2014-10-24 08:26


Very nice photo of the thin pointy legs!