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    Marine bivalve with associated hydra and dinoflagellates  
   

 

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Jared Leadbetter
Faculty Member

This small marine bivalve was collected from the local surf by one of the students in my class last Fall of 2010. The "frizzy" strands emanating from one side of the clam are colonial hydra. The hydra themselves are translucent. The dark brown color towards the base of the strands base is due to dense populations of single celled dinoflagellates that associate with the surface of the hydra. In an accompanying visual, a high magnification micrograph illustrates the UV autofluorescence of both the hydra and their associated dinoflagellates.

jleadbetter@caltech.edu

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