Invasive SpeciesSea potato

Colpomenia peregrina
FOUND by Elmosoysters
Cape Elizabeth
ID Confirmed
Quality checked by Ellis Piper
Peer reviewed by Amelia McEvoy
Field Notes
When we arrived at Kettle Cove Beach we smelt the salty ocean air. We saw lots of rocks and sand, and many different shaped tide pools. Quickly after arriving, we spotted a Sea Potato on the sand. It was located at the start of the shore. We heard planes flying overhead, and kids yelling from each direction. We were so happy we found a sea potato, and so fast too!
Supporting Evidence
Photo of my evidence.
in this photo, it shows a sea potato. This sea potato we found near the shore at Kettle Cove Beach. Sea Potatoes are thin hollow brownish green kind of bubbles. We know this because on the species ID card all of the characteristics above were defined as a Sea Potato.
Photo of my evidence.
This photo shows a Sea Potato attached to seaweed. Sea Potatoes are often attached to seaweed, which is how they end up on shore. On the species ID card, it shows Sea Potatoes attached to seaweed, but it can also detach and float on its own.
Photo of my evidence.
Sea Potatoes may be invasive species to Maine, they are commonly confused with a native species called Sea Cauliflower. Sea Cauliflower is thicker and looks more like a brain, and is also dark brown. This is how we know that we found a Sea Potato and that it is nonnative to Maine.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Colpomenia peregrina
Common name:
Sea potato
Sampling method: 
Just looking around
Photo of our sampling method.
Place Studied
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Map this species
N 43.560400 °
W -70.217600 °
Observation Site Information
A photo of our study site.
Coastal - Rocky intertidal
Trip Information
Kettle Cove
Trip date: 
Thu, 2018-10-25 08:45
Town or city: 
Cape Elizabeth
Type of investigation: 
Species Survey
Time of low tide: 
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