Invasive SpeciesDasysiphonia

Dasysiphonia japonica
NOT FOUND by suzy_hb
ID Confirmed
Quality checked by go science
Peer reviewed by
Field Notes
One of the hardest things to do was to get a picture of the cells and to make sure that there was enough water but not too much. Somethings that were exciting was to see all the different cells in different plants also to see how thin and thick some branches were and last of all to see how they branch out. My research was very adventurous because you learn new things as you go like learning about all the different cells in different plants, also we got to look at Dasysiphonia and we had to try an find it too.
Supporting Evidence
Photo of my evidence.
This picture is at a 40x magnification. I think this is not Dasysiphonia because I don’t see any shepard hooks. Also if you look at it at a higher magnification than you’ll notice that it doesn’t have single cells.
Photo of my evidence.
This picture was taken and looked at, at a 100x magnification. I think this isn't dasysiphonia because it’s not single celled all the way to the tips of it. Also there are no shepherd hooks, and Dasysiphonia can branch like this one but it has way to many cells in it.
Photo of my evidence.
This slide of a plant from Little Machias Bay was at a 40x magnification. I don’t think this is Dasysiphonia because it doesn’t have single cells to the tip. It also there are extra weeds connected to it and it doesn’t have any shepherd hooks. Also has a dotted line through the middle of the branches which Dasysiphonia doesn’t have.
Species Observation: Species Looked For
Did you find it?: 
I think I did not find it
Scientific name:
Dasysiphonia japonica
Common name:
Sampling method: 
Photo of our sampling method.
Place Studied
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Map this species
N 44.644100 °
W -67.253100 °
Observation Site Information
A photo of our study site.
Coastal - Dock
Trip Information
Little Machias Bay
Trip date: 
Thu, 2017-11-30 14:00
Town or city: 
Type of investigation: 
Species Survey
Eastern Coastal
Time of low tide: 
Thu, 2017-11-30 14:00


Was there an obvious midrib - kind of like veins on a leaf - on this seaweed? It looks like Membranoptera to me.

Thanks for your help with this!
Matt Bracken