Invasive SpeciesDasysiphonia

Dasysiphonia japonica
NOT FOUND by Moss Boss
ID Confirmed
Quality checked by Green team
Peer reviewed by
Field Notes
A group of GMRI staff went through the remaining downeast samples from the joint VS/DMR Dasysiphonia monitoring project. We had fun over lunch but it also looks like there is no Dasysiphonia farther downeast within DMR's sampling plots (a good thing!) Green team's sample: MLW for Harbor Is. was 24ft, their sample weighed 97g
Supporting Evidence
Photo of my evidence.
Green team looked through their whole sample and coulnd't find anything filamentous to be dasysiphonia that wasn't a green algae. The closest they found was this algae, which does not have the characteristics of dasysiphonia (single cell branchlets, multicelled main). This algae has vertebrae like cells with 'pincers' at the end. Green team used a prepared slide of dasysiphonia (from a different place) to cross check their findings.
Species Observation: Species Looked For
Did you find it?: 
I think I did not find it
Scientific name:
Dasysiphonia japonica
Common name:
Sampling method: 
Quadrat (user-placement)
Photo of our sampling method.
Place Studied
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Map this species
N 43.907500 °
W -69.383500 °
Observation Site Information
A photo of our study site.
Coastal - Rocky intertidal
Trip Information
D.japonica - Harbor Is
Trip date: 
Mon, 2015-11-09 13:50
Town or city: 
Type of investigation: 
Species Survey
Time of low tide: 


Might be Ceramium virgatum.

- Matt Bracken