Invasive SpeciesGreen crab

Carcinus maenas
FOUND by Green Team 3
ID Confirmed
Quality checked by Mrs. Griffith
Peer reviewed by Kylie & Shaylee
Field Notes
I am happy because we are outside and found many crabs. The Questions and problems I ran into are they were aggressive and kept trying to crawl out of the box we had the crabs in. I see seaweed, I hear the water and the wind, and I smell saltwater.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
The crab that we measured was 2 1/8 inches. Green crabs are usually between one and four inches wide.
Photo of my evidence.
The crabs had five sides that helped us determine that it was a green crab.
Photo of my evidence.
The crabs had 5 spines on each side that helped us know that they were green crabs.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Carcinus maenas
Common name:
Green crab
Sampling method: 
Quadrat (randomized- placement)
Photo of our sampling method.
Place Studied
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Map this species
N 44.882431 °
W -67.132635 °
Observation Site Information
A photo of our study site.
Coastal - Beach or dune
Trip Information
Reversing Falls, Pembroke
Trip date: 
Thu, 2018-10-04 12:21
Town or city: 
Type of investigation: 
Species Survey
Eastern Coastal
Time of low tide: 
Thu, 2018-10-04 13:22


Hi Green Team 3,

Your coordinate is not showing you in the intertidal. Please post more accurate coordinates here so we can get you in the right spot on the map.

-The VS Team

Great pictures Green Team 3! About how many crabs did you all find during your search? Were any other species found within your class group?

Thank You! We found around 20 crabs in our class group. We did not find any species other than Green Crab.

~Green Team 3