Sandbar Area
The sandbar area is near the mouth of the bay.  This area is likely the most exposed to tidal currents and wave action. The types of burrowing animals found here could be the result of wave action that provides a consistent source of fine food particles, or of the larger grain size distribution that allows greater water flow throught the substratum.  The area consisted of fine sand (more information on sediments can be found here) and intersected with an extensive eelgrass bed.
Jon Payne (right) and Mike Hickerson (left) on the sandbar
Tubes of worms in the families Maldanidae and Chaetopteridae near eelgrass.
The burrowing polychaete Axiothella rubrocincta and the echinoderm Leptosynapta clarki dominated this area.  Mesochaetopterus taylori, a member of the odd family Chaetopteridae, are also found clustered in certain parts of the sandbar.  These worms develop special fan appendages that are used to constantly move water through their tubes, bringing in suspended food particles that are trapped within a mucous net.

Click here to get an overview of taxonomic diversity of this habitat as compared to the other three.
Click here to learn about the abundance of organisms or to get a description of organisms found in this habitat.
Go here to learn more about protection, reproduction, feeding, and locomotion of these organisms.