Invasive SpeciesDasysiphonia

Dasysiphonia japonica
NOT FOUND by suzy_cj
2017-11-30
Machias
ID Confirmed
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Field Notes
Supporting Evidence
Photo of my evidence.
I think I did not find Dasysiphonia. I think this because my sample did not have single celled branches. Dasysiphonia is known for having single celled branches and in this sample from Little Bay had multi-celled branches (photo taken at 100x).
Photo of my evidence.
Another reason I think I did not find Dasysiphonia is because this other sample I investigated did not have shepherd’s hook. Dasysiphonia has shepherd's hook where the branches curl to look like a hook, and this algae does not have a shepherd's hook which takes me to the conclusion that this is not Dasysiphonia (photo taken at 40x).
Photo of my evidence.
The third reason I think I did not find Dasysiphonia is because my samples did not have axial growth. My samples did not continuously have other branches growing off of them, like Dasysiphonia has (photo taken at 40x).
Species Observation: Species Looked For
Did you find it?: 
I think I did not find it
Scientific name:
Dasysiphonia japonica
Common name:
Dasysiphonia
Sampling method: 
Dock
Photo of our sampling method.
Place Studied
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Latitude: 
N 44.644100 °
Longitude: 
W -67.253100 °
Observation Site Information
A photo of our study site.
Habitat: 
Coastal - Dock
Trip Information
Name:
Little Machias Bay
Trip date: 
Thu, 2017-11-30 14:00
Town or city: 
Machias
Type of investigation: 
Species Survey
Ecosystem: 
Coastal
Watershed: 
Eastern Coastal
Time of low tide: 
Thu, 2017-11-30 14:00

Comments

suzy_cj,

As you have noted above, this is not Dasysiphonia.

Thanks for your work on this,
Matt Bracken