Asian shore crab
Hemigrapsus sanguineusNOT FOUND by pbernhardt
Quality checked by Tessa, Maggie, Hannah, Kathryn
Peer reviewed by Hannah, Kathryn
Our trip started with a cloudy, foggy day. We emerged from the bus to see a rocky intertidal zone covered in seaweed and tide pools. After breaking up into our transect groups, we gathered up our materials for catching, and measured our 10 x 2 meter transects. We practiced catching the crabs outside our transect zones before the real hunt began. The official hunt was 20 minutes in length. After the 20 minutes, we collected our data (we measured the carapaces, found their gender, and determined their species). We collected a total of 328 crabs and all were green.
We didn't find what we were looking for because this crab, like the other ones we found, has five spines between the eye and the widest part of the carapace, and Asian shore crabs only have three.
Asian Shore crabs have a square carapace and this green crab has a shield or hexagonal shaped carapace .
N 44.431600 °
W -68.941960 °
Moose Point State Park
Thu, 2010-09-30 09:40
Town or city:
Type of investigation:
Species and Habitat Survey
Time of low tide:
Thu, 2010-09-30 09:50
2 different species
Evidence of vectors:
Possible lobstering boats that we did not see.