Invasive SpeciesAsian shore crab

Hemigrapsus sanguineus
NOT FOUND by aaandw
ID Confirmed
Quality checked by Go science
Peer reviewed by
Field Notes
We went to Reid State Park and Todd’s Landing on Tuesday, October the 24th to pick up the traps we previously set and collect new data as well. We left our school at eight-thirty to get on a bus to go to Todd’s Landing. Our teacher went out with waders and collected the traps. We found a fish and some lobsters. After collecting our traps we got back on the bus and went to Reid State Park. There were traps there as well, and while other groups went to collect data first, our group and few others went to take the traps out. We found even more lobster and more crab. Then we went back to the other side of the bridge and set up a quadrant. We took several pictures and found very few green crabs in the area. We found zero Asian shores and found about two green crabs on our own. It was obvious they were green crabs because they all had five spines and were small. After taking notes and finishing up our research, we went back to school and continued our work.
Supporting Evidence
Photo of my evidence.
In this photo we found a green crab. We knew this because the crab had 5 spikes instead of 3 spikes like the Asian shore crab.
Photo of my evidence.
Then in this photo of a green crab, we knew it was a male because its telson was skinny unlike a females telson which is wider.
Photo of my evidence.
This photo was taken of all the crabs we found. We didn't find an Asian shore crab but we did find multiple green crabs.
Species Observation: Species Looked For
Did you find it?: 
I think I did not find it
Scientific name:
Hemigrapsus sanguineus
Common name:
Asian shore crab
Sampling method: 
Quadrat (user-placement)
Photo of our sampling method.
Place Studied
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Map this species
N 43.785055 °
W -69.722021 °
Observation Site Information
A photo of our study site.
Coastal - Rocky intertidal
Trip Information
Reid State Park river
Trip date: 
Tue, 2017-10-24 09:00
Town or city: 
Type of investigation: 
Species Survey
Time of low tide: 
Tue, 2017-10-24 08:47


All fixed, aaandw. I suspect this may change the review of the species expert now that this is a NOT FOUND observation :)

Hi aaandw,
Based on your findings, I think you meant to say Asian shore crab "Not Found"?

Sorry we made a mistake, we should have said Asian shore crab not found.