Invasive Crab Species Search and Identification- Green Crab

Using a bucket, net, and bare hands, the group searched the intertidal and spray zones to find the Green Crab invasive species. Many of the crabs were found under rocks and wooden planks. They were then catalogued based on visual characteristics to identify them to the correct species. The group also took pictures for more evidence of the species. The Vital Signs identification sheet was also used to properly find the correct crap species. The 5 ridges on the front side of the shell made the Green Crab easier to identify. Out of 48 crabs, only 4 Green Crabs were found. 3 of the 4 were male and 1 was female.

Project Information
City or Town: 
Hampton, NH
School or Organization: 
Winnacunnet High School
Scientific name:
Carcinus maenas
Common name:
Green crab
Coastal - Rocky intertidal
Resources I used to create this project: 
An in-class lab practicing identification of different crab species found in the Hampton, NH area. During the lab, the Vital Signs ID cards were used to help prove that the crabs were the species that the group thought they were.